Technical Information and Design Characteristic-mark III

TechnicalInformationand DesignCharacteristics

Pump Division

Flowserve DurcoMark 3 Alloy Pumps

• ASME (ANSI) B73.1 Standard

• Sealmatic• Unitized Self-Priming• Recessed Impeller• Lo-Flo

Bulletin P-10-501b (E)

(P-10-501b)MK3TechBltn#10 3/1/04 10:05 AM Page 1

2

Pumps delivered worldwideare manufactured in Flowservefacilities certified to ISO 9001.

Mark 3 Pumpand EnhancementsMark 3 ASME (ANSI) B73.1

Standard Pump ............Page 4Power Ends .............................5Shafts & Sleeves .....................6Shaft Materials & Data ............7Shafts & Bearings....................8Deflection Graphs ....................9Isocorrosion Graphs..............10SealSentry™.....................11-14DurcoShield™........................15Impellers ..........................16-17Lo-Flo™ .................................18Casing Options ......................19Ultralign™..............................20Low/High Temperature ..........21BaseLine™........................22-27

Technical DataPerformanceCurves ..........................Page 28Interchangeability ..................29Pressure/Temperature

Ratings................................30Suction Pressure Ratings ......31General Data ..........................32Minimum Flow.......................33Fastener Standards................33Group 1 Parts ........................34Group 2 & 3 Parts .................35Pump/Baseplate

Dimensions .........................36Materials................................37How To Specify......................38

SealmaticMark 3Sealmatic ...............pages 39-43

Heavy-duty chemicalservice pumps are pre-ferred around the globe.

Exclusive featuresimprove pump reliabilityand extend mean timebetween plannedmaintenance (MTBPM).

Flowserve Durco pumpsare among the industryleaders in hydraulic coverage and efficiency.

Dynamically sealedpump eliminates theneed for conventionalmechanical seals.

Flowserve DurcoMark 3 ANSI

Process Pumps

Pump Division

Flowserve Durco Mark 3 ANSI Process Pumps

Quality System Certificate

Mark 3 Pumpand Enhancements

Technical Data

Sealmatic


3

Mark 3Self-Priming...........Pages 44-48Priming Tanks...................49-51

Mark 3RecessedImpeller..................Pages 52-55

Power Monitor ..................Pages 56-57

Good PumpPractice ..................Pages 58-59

Located out of thesump. Reduces costsof vertical pumpoptions and simplifiesmaintenance.

Vortex action assurestrouble-free pumpingof large diametersolids and slurries.Also selected for shearsensitive media.

Protects pumps fromcostly damage dueto improper operationat both high and lowhorsepower load points.

Observing these sevenprinciples of “GoodPump Practice” cansignificantly extendMTBPM.

Pump Division


Self-Priming

Recessed Impeller

PowerMonitor

Good Pump Practice


4

Unique Features ExtendMTBPMImproved pump reliabilityand extended MTBPM areachieved with exclusivefeatures including:• Optional ANSI 3A™ power

end (See page 5)• SealSentry™ seal chambers

featuring the FML model withflow modifiers and largetapered bore (See page 11)

• The unique reverse vaneimpeller (See page 17)

• Ultralign™ with C-Plusprecision motor and pumpshaft alignment (See page 20)

• BaseLine family ofpre-engineered baseplates(See page 22)

How To IdentifyFlowserve Durco Mark 3 Process PumpsAn example of thenameplate used on theMark 3 pump is shownbelow. This nameplateis always mounted onthe Mark 3 bearinghousing.


Standard

Pump Division

ANSI Pump and Enhancements

Pump Division

2K6X4M-13A/12.5RV

Serial No.

Equipment No.

Purchase Order

Model

Size

MDP

Material

Date, DD/MMM/YY

2 K 6 X 4 M – 1 3 A / 12.5 R V2 indicates a medium size pumpframe – in this example, a Group 2

1 = Group 1 (small frame)2 = Group 2 (medium frame)3 = Group 3 (large frame)

K = Mark 3 style power endJ = Mark 3 style PE arranged for

Mark 2 wet endNo letter and no preceding number

indicates a Mark 2 power endNominal suction port sizeNominal discharge port sizeModifier for “specialty pumps”

blank or no letter = Standard pumpM = Sealmatic L = Non-metallic wet endR = Recessed impeller H = High silicon ironUS = Unitized self-priming S = Old style self-primingV = Vertical in-line T = PFA lined wet endLF = Lo-Flo E = Durcon wet end

Nominal maximum impeller diameter13 = 13 inch

Pump design variationA = This pump has been redesigned from an earlier

version. The impeller and casing are no longer interchangeable with the earlier version.

H = This pump is designed for a higher flow capacity thananother pump with the same basic designation.Examples: 4X3-10 and 4X3-10H; 6X4-10 and 6X4-10H;10X8-16 and 10X8-16H. In each case the pump with the“H” is designed for a higher flow capacity.

HH = This pump is designed for a higher head than anotherpump with the same basic designation. Example: 4X3-13 and 4X3-13HH

Actual impeller size12.5 = 121/2 in diameter; 8.13 = 81/8 in; 10.75 = 106/8 or 103/4 inPrevious annotation: 124 = 124/8 or 121/2 in diameter; 83 = 83/8 in

Impeller styleRV = Reverse vane impeller; OP = Open impeller


5

A Choice of Power EndsStandard Mark 3A powerends feature:• Double row angular contact

outboard/single row, deepgroove inboard bearings forexcellent axial and radial loadsupport

• Double lip oil seals• Top mounted vent and oil filler• Trico oiler• Large 25 mm (1 in) diameter

reflective sight glass• Micrometer adjustment

(See page 8)• Optional oil slinger

ANSI 3A™ power end is so advanced it carries a three-year MTBPM bearingguarantee• Certified clean room assembly• Inpro/Seal’s VBXX non-

contact Vapor Block BearingIsolator keeps lubricants inand contaminants out

• Magnetic drain plug collectsmetallic contaminants

• Top vent replaced with plug

Lubrication Options• Synthetic lubricants can allow

up to three years betweenoil changes

• Oil mist systems• Shielded and grease lubricated

bearings (two-year MTBPMguarantee)

Note: Adherence to properinstallation, operation andmaintenance program isnecessary for three-yearMTBPM bearing guarantee.

All Flowserve DurcoPower Ends Feature:• Metal-to-metal

construction to assurea true running andconcentric shaft, therebyextending bearing andmechanical seal life

• Ductile iron frameadapter meetingASME B.73.1 criteria


StandardPower Ends

Pump Division


Optional Swing-Away Bearing Housing Foot

Optional FinnedOil Cooler


6

Flowserve DurcoMark 3 Shafts

and Sleeves

Pump Division


➅ Run-out of < 0.03 mm (0.001 in)at mechanical seal allows seal facesto run true.

➆ Critical surfaces ground to a surfacefinish of 0.4 micron (16 µin) ensurethe secondary sealing ability ofmechanical seals.

➇ Steel power ends handle higherhorsepower loads than stainless.

➈ Minimally radiused edges ensurefull contact with impeller forreduced run-out.

➀ Radiused “sled-runner” keywaysimprove strength at this stresspoint.

➁ Offset keyways aid shaft balance.➂ Alloy identification on every shaft

and sleeve ensures that the rightparts go in every time.

➃ Large radii fillets add strength.➄ Accurate machining under

bearings ensures perfectbearing fits without vibrationor hot running.

Flowserve Durco shafts and sleeves are designed to improvepump reliability.

Shaft Material ChoicesStandard: investmentcast or high alloy barstock available in awide range of materials,including proprietaryDC8 and SD77 wet ends.

DC8 and SD77 offersuperior corrosionresistance and hardnessto minimize shaftfret corrosion andmaximize shaft wetend performance.• DC8 – a cobalt base

alloy with chromiumand molybdenum

• SD77 – or Superchloris a high silicon ironalloy

Flowserve recommendsthe use of solid shaftsrather than shaft sleevesto reduce the harmfuleffects of deflection andvibration. Shaft sleevesmay simplify mainte-nance but solid shaftsreduce it.

Hook Sleeve: a steel shaft end-to-endor a steel power end friction-welded toa stainless wet end accommodating ahook sleeve

Solid: steel end-to-end or stainlessalloy end-to-end

Friction-Welded: a steel power endfriction welded to a solid alloy wet end

Shaft Choices

Composite: a steel shaft end-to-endwith an integral sleeve of DC8, SD77high silicon iron, ceramic (alumina orzirconia)


Flowserve Alloy Identification – Sleeves*Symbol Alloy Brinell Hardness

DC2 Chlorimet 2 (Hast B2) 230DC3 Chlorimet 3 (Hast C276) 220DC8 Cobalt-based, proprietary 300M Monel® 150

DNI Nickel 130316 316 SS 160A20 Durimet 20 130TIW Titanium 200

TIPW Titanium, Palladium stabilized 200ZRW Zirconium 200

*Other alloys available upon request

7

Exclusive DC8 Composite ShaftDC8 is an ideal sleeve materialbecause of its optimum combinationof strength (tensile strength equals4136 bar [60,000 psi]), hardness(Brinell of 300), and corrosion resistance (superior to Alloy 20in many cases).

Pump Division


Shafts and sleeves areclearly marked with thematerial symbol.

Fully contained PTFEencased silicone O-ringprotects shaft thread.

Special Shaft andSleeve AlloysThere are three importantconsiderations in theselection of a suitableshaft material for apump application: • corrosion resistance• wear resistance, and• shock resistance –

both thermal andmechanical.

To meet these criteria,Flowserve developedDC8 specifically as ashaft sleeve material.

Shaft is machined as an integralunit after DC8 alloy is permanentlyaffixed. Single machining tolerancemeans better concentricity andlower runout.

Flowserve Alloy Identification – Shafts*Shafts Symbol Alloy (power end/wet end) Brinell Hardness

Composite BBC8 (1144 Steel/DC8) 300BB77 (1144 Steel/SD77 Hi Si Iron) 520BBC3 (High purity ceramic [alumina]) –BBSZ (1144 Steel/Ceramic [zirconia]) –

Friction Welded ZH (Steel/316SS)* 160ZC20 (steel/C20) 130EHB (304SS/Hast B2)® 230EHC (304SS/Hast C276)® 220C450 (Steel/450 SS)**

Solid BB (1144 Steel)* 200304 (304 SS) 155316 (316 SS)* 160HB (Hast B2)® 230HC (Hast C276)® 220

4140 (4140 Steel)* 260CK45 Carbon Steel 2404462 Duplex SS 2502205 Duplex SS 250

*Also available in hook shaft **Group 1 T-Line only

® Hastelloy is a registered trademark ofHaynes International, Inc.

® Monel is a registered trademark ofInternational Nickel Co. Inc.

*28.575 mm Ø (1.1250 in)28.562 mm Ø (1.1245 in)

47.62 mm Ø (1.875 in)47.57 mm Ø (1.873 in)

34.93 mm Ø (1.375 in)34.88 mm Ø (1.373 in)

*6 x 4-10 pump shaft coupling end 38.100 mm Ø (1.5000 in)38.087 mm Ø (1.4995 in)

60.32 mm Ø (2.375 in)60.30 mm Ø (2.374 in)

22.225 mm Ø (.8750 in)22.212 mm Ø (.8745 in) 28.58 mm Ø under opt. sleeve

(11/8 in)

38 mm Ø under opt. sleeve(11/2 in)

53.98 mm Ø under opt. sleeve(21/8 in)

98.4 (37/8)

66.68 mm Ø (2.625 in)66.62 mm Ø (2.623 in)

Group 1Shaft

Group 2Shaft

Group 3Shaft

91.3 (319/32) 151.6 (531/32)

125 (415/16) 175 (67/8) 195 (711/16)

183 (73/16) 267 (101/2) 260 (101/4)


8

The Heart of the Pump: Shaft and Bearing DesignFlowserve offers the largestshaft and bearing componentsavailable in standard ANSIpumps. The following compari-son of a Flowserve Durco Group 2 power end with that of a major competitordemonstrates the benefits ofheavy-duty design.

Bearings (see Table 1)Greater load handling ratingmeans extended MTBPM.Extended bearing life comparisonis the ratio of the load ratingsto the third power, or:

I.B.= 13 400 3

=1.43 (+43%)11 900

O.B.= 19 200 3

=1.61(+61%)16 400

The formula I=L3/D4 offers anindex of deflection to comparepump designs where:I = index of deflectionL = length of shaft overhang

from bearingD = rigid shaft diameter

Note: The Deflection Indexprovides an approximatecomparison of shaft stiffness.A detailed analysis should bemade to determine actual shaftdeflection.

Flowserve Durco Mark 3

Heavy-Duty Shaftsand Bearings

Pump Division


Table 2Deflection Comparison

Table 1Bearing Comparison

43-252% greater stiffness,indicated by lower indexnumbers, results in longerMTBPM.

Flowserve Durco bearings are designed to last up to 61% longer.

Shafts (see Table 2)Solid shafts are recommendedover shaft sleeves because theyreduce the harmful effects ofdeflection and vibration.While shaft sleeves maysimplify maintenance, solidshafts reduce it.

Proper selection of wet endmaterials of construction andmechanical seal design offsetpositive features of the shaftsleeve option.

Unique ExternalMicrometer ImpellerAdjustment It reduces maintenancetime and, most importantly,is precisely accurate.

Group 2 I.B. Dynamic O.B. DynamicBearing Load Rating Bearing Load Rating

Flowserve 6310 6078 kg 5310 8709 kg(13 400 lb) (19 200 lb)

MajorCompetitor 6309 5398 kg 5309 7439 kg

(11 900 lb) (16 400 lb)

Group 2 Overhang Solid Shaft Deflection Shaft DeflectionLength Diameter Index w/sleeve Index

Flowserve 189 mm 48 mm 38 mm(711/16 in) (17/8 in) 37 (11/2 in) 90

MajorCompetitor 213 mm 45 mm 38 mm

(83/8 in) (13/4 in) 63 (11/2 in) 116

Simply loosen the setscrews. Using a wrenchrotate the bearing carriercounterclockwise until theimpeller lightly touchesthe rear cover plate.

Select the impeller setting. Each notch on the carrierring represents exactly 0.10 mm (0.004 in) of clearance. For an impellersetting of 0.5 mm(0.020 in) count fivenotches counterclockwise.

Move the bearing carrierclockwise the selectednumber of notches. Tightenthe setscrews and checkthe impeller clearance withthe feeler gauge.


9

Flowserve DurcoMark 3 Deflection

Graphs

Pump Division


The following shaftdeflection curves arebased on the maximumsize reverse vaneimpeller pumping 1.0specific gravity liquid.Shaft deflection variesdirectly with specificgravity and by thesquare of the pumpspeed. The graphsshow that as flow isincreased to BEP, thedeflection decreases.The measurement givenis deflection at the faceof the seal chamber.

Flowserve recommendsthe use of solid shaftsrather than shaft sleevesto reduce the harmfuleffects of deflectionand vibration. Shaftsleeves may simplifymaintenance but solidshafts reduce it.

Group 1 & 23500 RPM

Group 1 & 21750 RPM

Group 3

SCAL

ECH

ANGE


10

For Standard Shaft and Wet-End MaterialsNote: Various materials areacceptable in the areas underthe curves as indicated.

IsocorrosionGraphs

Pump Division


PUMP SHAFT/SLEEVE ISOCORROSION CHART

% HCI* IF NO OXIDIZING CONTAMINANTS

TE

MP

ER

AT

UR

E °

F

140

120

100

80

60

240

220

200

180

160

TE

MP

ER

AT

UR

E °

C

16

60

49

38

27

71

116

104

93

82

10 20 30 40

HYDROCHLORIC ACID

ZONES FOR CORROSION RATESLESS THAN 10 MILS PER YEAR

BOILING CURVE

CERAMICDC2*Zr*

SD77*

SD77SD51


TE

MP

ER

AT

UR

E °

F600

500

400

300

200

100

0

TE

MP

ER

AT

UR

E °

C

316

260

204

149

93

38

10 20 30 40 50 60 70 80 90 100

SULFURIC ACID


BOILING CURVE

SD77SD51

D20DC8

SD77SD51

% H2SO4


TE

MP

ER

AT

UR

E °

F

DC8

600

500

400

300

200

100

0

TE

MP

ER

AT

UR

E °

C

316

260

204

149

93

38

10 20 30 40 50 60 70 80 90 100

D20SD51SD77

D4

DC8D20D4

DC8D20

SODIUM HYDROXIDE


BOILING CURVE

% NaOH


% HNO3

TE

MP

ER

AT

UR

E °

F

250

200

150

100

50

TE

MP

ER

AT

UR

E °

C

10

121

93

66

38

10 20 30 40 50 60 70 80 90 100

NITRIC ACID


BOILING CURVE

SD51SD77

D20D4

SD77SD51

D20D4

SD51SD77

DC8

D20D4

DC8


11

Advanced FM SealSentryDesign Technology• Self-Flushing• Self-Venting• Self-DrainingSeal life is extended due tosuperior purging of heat, solidsand vapors. Single seals canoften be selected where dualseals or external flush andthroat bushing combinationshad been used, such as onsolids, slurry and liquorservices. Flush plans 11, 32,52, 53, etc. can be eliminated.Costs are reduced. Pumpreliability is increased.

Maximizing seal life involvesproper selection of the sealchamber and seal and glandcombination. Generally, the sealfaces should be located directlyin the flush path.

For SealSentry video and proofof performance contact the localFlowserve sales office.

SealSentry FMSeries Seal

Chambers

Pump Division


Flow Modifiers ExtendMechanical Seal MTBPM• Flow modifiers redirect flow

from circumferential to axial• Balanced flow with low

pressure drop in the chamberhelps keep solids in suspen-sion, minimizing erosivecharacteristics of the process

• A mechanical seal createsa centrifuging action awayfrom its parts and into thereturning flow path of theprocess liquid

• Solids and slurry merge inthe returning flow path andare flushed out of the sealchamber

Winner of the VaalerAward for DesignInnovation

The FM (Flow Modifiers) seriesfeatures an enlarged, tapered borewith cast-in flow modifiers


12

Flowserve Durco superior self-flushing seal chambers will:• Extend seal MTBPM• Improve pump reliability• Reduce costs

SealSentry FM Series

Seal Chamber

Pump Division


The SealSentry FM provides improved internal seal chamberflush, with better solids handling, superior heat dissipationand vapor purging. These features extend mechanical seallife in both single, internal and the process side seal of dual seals.

For best performance, select seals and glands that locatethe process side seal faces directly in the flush path.

On most applications the FM self-flush can eliminate the need for an external flush such as ANSI Plans 11 and 32.

SealSentry FM – Opportunities Results and Comments

Save on capital, power, and perhaps evaporation costs and improvesystem reliability while extending seal MTBPM.

On most applications, a bypass line such as ANSI Plan 11, which canbe subject to failure, can be eliminated. Save on capital and power costsand improve system reliability while extending seal MTBPM.

However, a bypass flush is recommended when negative suctionpressures or self-priming pumps are applied.

Note: Single external seals are discouraged particularly if solids, slurry, or liquor may be present, regardless of flush mechanism.

When a dual seal is required, such as toxic or environmental applications, seal life will be extended with SealSentry’s improvedself-flush. Longer seal MTBPM means cost savings.

On most other applications, single seals without a bypass flush may beapplied. Save on capital, avoid product contamination, and improvesystem reliability.

On some applications, single seals with a quench may be preferred.Save on capital cost, reduce contamination, and improve systemreliability while extending seal MTBPM.

When extremely abrasive and high concentration slurries exist, dualseals that isolate the seal chamber may be preferred.

Dual seals are often specified on solids, slurry, and liquorservices due to difficulties in properly flushing single seals.External flush on these dual seals adequately lubricatesinternal/external seal faces, but seal life can be reduced byprocess buildup and temperature rise on the internal sideseal. This is caused by poor process circulation.

SealSentry FM improves internal process seal flush andallows consideration of single seals with potentially no otherflush required.Note: Abrasive services require careful consideration of the concentrationand hardness of the abrasive. Pump and seal metallurgy, speed, and sealselection should be reviewed with the manufacturer.


13

SealSentryTypes and

Recommendations

Pump Division


FML

FMS

FMI

CBL

CBS

Oversized, tapered borewith 8 specially shapedand evenly spaced cast-inflow modifiers. Designedfor seals with large glandbolt and gasket circles.

Same chamber design as FML but accommo-dates seals with smallgland bolt and gasketcircles.

Same chamber designas FMS, but includes acast-in integral gland.

Oversized, cylindrical step bore design for sealswith large gland bolt andgasket circles.

Cylindrical bore design for packing arrangementsand conventional sealswith small gland bolt andgasket circles.

• Single internal cartridge seals• Dual internal/external cartridge seals• Single internal component seals with flexibly

mounted seats*• Dual internal “true” tandem cartridge seals

Note: Bypass flush to internal seal normally notrequired. Barrier fluid or external flush may applyto dual seals (Plans 52, 53, etc.).

Same seal and flush plan recommendations as for FML.Single seals with all types of seat mounting configura-tions can be installed. FMS design is provided for theconvenience of customers with seal standards thatinclude small glands. Secondary to the FML, Flowserverecommends the FMS.*

• Single internal, flexibly mounted seals. Uses sleeve for seal setting and fast installation

• “Sanitary-type” applications. Less prone tobacteria build upNote: Bypass flush is normally not required.

• Dual internal component seals. Isolates the sealchamber from the process. Allows less expensive sealmaterials. Recommended in tough slurry applicationsNote: Use External Flush Plan 54. Others (i.e., Plans52, 53) not recommended without close tolerancepumping mechanism.

• Single internal component or cartridge seals whenapplied with a throat bushing. Usually selected toincrease stuffing box pressure above the vaporpressure to avoid cavitation, etc.Note: Applied with Plan 11, etc.

• Dual internal component seals. Isolates the sealchamber from the process. Allows less expensive sealmaterials. Recommended in tough slurry applications.Allows for thermal convection type flush plans;however, pumping ring devices are recommendedNote: External Flush Plans 52, 53, 54

• Single internal component or cartridge seals whenapplied with a throat bushing. Usually selected toincrease stuffing box pressure above the vaporpressure to avoid cavitation, etc.

• Usually preferred over the CBL when jacketing isselected for increased effectiveness in cooling orheatingNote: Applied with Plan 11, etc.

*All seal selections perform best when the faces are locateddirectly within the flush path, particularly if solids, liquors, orslurries are present. Component seals with clamped seat glanddesigns locate the seal faces reasonably well. Flexibly mountedseat glands should include the vent and drain option to betterlocate the seal faces. The FML is always the first-choicechamber for maximum self-flush path benefits.

(Preferredseal chamberdesign fornearly allapplications)


FML/CBL A BC Drilled

D E F G1 G2 H J* KNo. ofHoles Size B.C.

35 mm 86 mm 102 mm 60 mm 51 mm 5 mm 73 mm 54 mm 19 mm (3/4 in) 131 mm 58 mmMark 3 GROUP 1 (13/8 in) (33/8 in) 4 3/8-16 (4 in) (211/32 in) (2 in) (3/16 in) (27/8 in) (21/8 in) Annulus (25/32 in) (29/32 in)

48 mm 105 mm 127 mm 92 mm 51 mm 5 mm 92 mm 67 mm 22 mm (7/8 in) 79 mm 57 mmMark 3 GROUP 2 (17/8 in) (41/8 in) 4 1/2-13 (5 in) (35/8 in) (2 in) (3/16 in) (35/8 in) (25/8 in) Annulus (31/8 in) (21/4 in)

67 mm 130 mm 152 mm 98 mm 76 mm 5 mm 117 mm 92 mm 25 mm (1 in) 86 mm 84 mmMark 3 GROUP 3 (2 5/8 in) (51/8 in) 4 1/2-13 (6 in) (327/32 in) (3 in) (3/16 in) (45/8 in) (35/8 in) Annulus (33/8 in) 35/16 in)

Flowserve DurcoMark 3 Seal

ChamberDimensions

14

Pump Division


E

Aφ

DJ* F

B

C

G1

Aφ DJ*

B G1

C

F

K

G2

Standard Group 1, 2 & 3 CBL Standard Group 1, 2 & 3 FML

K

HH

Aφ

D1

FB G

E

C

Standard Group 1, 2 & 3 CBS

11

Aφ

F

B G

C

Standard Group 1, 2 & 3 FMS

J1*

H1

D2

K1

H2

K2

J2*

11

Aφ

Standard Group 1, 2 & 3 FMI

E

H

G

*Face of seal chamber to end of optional shaft sleeve

FMI A E G H35 mm 60 mm 54 mm 19 mm (3/4 in)

Mark 3 GROUP 1 (13/8 in) (2 3/8 in) (2 1/8 in) Annulus

48 mm 56 mm 67 mm 22 mm (7/8 in)Mark 3 GROUP 1 (17/8 in) (2 3/16 in) (2 5/8 in) Annulus

67 mm 92 mm 92 mm 25 mm (1 in)Mark 3 GROUP 3 (25/8 in) (3 3/8 in) (3 5/8 in) Annulus

NOTE: All dimensions are for reference.Not to be used for seal or gland construction

FMS/CBS A BC Drilled

D1 D2 E F G H1 H2 J1* J2* K1 K2No. ofHoles Size B.C.

35 mm 67 mm 83 mm 131 mm 131 mm 56 mm 5 mm 54 mm 10 mm (3/8 in) 19 mm (3/4 in) 49 mm 49 mm 63 mm 63 mmMark 3 GROUP 1 (13/8 in) (25/8 in) 4 3/8-16 (31/4 in) (25/32 in) (25/32 in) (23/16 in) (3/16 in) (21/8 in) Annulus Annulus (115/16 in) (115/16 in) (215/32 in) (215/32 in)

48 mm 79 mm 95 mm 76 mm 76 mm 67 mm 5 mm 67 mm 10 mm (3/8 in) 22 mm (7/8 in) 64 mm 64 mm 73 mm 73 mmMark 3 GROUP 2 (17/8 in) (31/8 in) 4 3/8-16 (33/4 in) (3 in) (3 in) (2 5/8 in) (3/16 in) (25/8 in) Annulus Annulus (21/2 in) (21/2 in) (27/8 in) (27/8 in)

67 mm 108 mm 140 mm 91 mm 98 mm 83 mm 5 mm 92 mm 13 mm (1/2 in) 25 mm (1 in) 79 mm 86 mm 90 mm 84 mmMark 3 GROUP 3 (25/8 in) (41/4 in) 4 1/2-13 (51/2 in) (319/32 in) (327/32 in) (31/4 in) (3/16 in) (35/8 in) Annulus Annulus (31/8 in) (33/8 in) (39/16 in) (35/16 in)

*Face of seal chamber to end of optional shaft sleeve


15

This splash and shaft guard is aone-piece shield that envelopesthe open areas between thebearing housing and the casing. • Fluid spray from a malfunc-

tioning seal is deflected by the shield

• Provides protection from therotating shaft in the area ofthe mechanical seal asrequired by safety regulationsof many countries, includingthe USA’s OSHA Section 29CFR 1910 and EU MachineryDirectory

Protection from the potentialdangers of:• Process fluid spray• Rotating shaft and seal

components

DurcoShield is easy toinstall or to remove.Simply spread the shieldapart... fit around thebearing housingadapter... and snap intoplace. The spring-liketension holds the shieldfirmly in place.• Its transparency

permits visualinspection of theseal area

• Optionally availablein PVDF

• Applications from -57°C (-70°F) to 149°C (300°F)

• Available for Mark 2,Mark 3 and Chemstar®

pumps

Contact your localFlowserve representativetoday for completeinformation.

This device is not acontainment system,nor a seal backupsystem. It is a limitedprotection device. Itwill reduce, but noteliminate, the probabilityof injury.

PATENT PENDING

DurcoShield™Pump Safety

Accessory

Pump Division


Slots or holes to accommodateseal support piping/tubingcan be easily located anddrilled or cut.


16

Flowserve Durco reverse vaneimpellers deliver unequalledefficiency and performance.This exclusive impeller designextends bearing and seal life.

Low, Predictable Seal ChamberPressure and thrust loads resultingfrom back vane pumping actionand balance holes

Low Required NPSH, lowestoverall of any standard pump

Rear Cover Plate Wear Surfaceas the flow path exits the rear ofthe impeller, placing abrasive wearon the rear cover rather than themore expensive casing

In Shop Impeller Adjustment withthe only impeller design that takesfull advantage of the back pull outfeature. Since the critical runningclearance is set between the rear ofthe impeller and the rear coverplate, both impeller and mechanicalseal settings can be done in theshop, “on the bench,” instead ofunder adverse field conditions

Repeatable PerformanceAssurance with the only impellerdesign that offers repeatability inseal chamber pressure and bearingthrust loads

Front Vane Open Style Impelleris fully interchangeable with thereverse vane impeller. Excellentchoice for stringy and certainapplications requiring highshear against the casing.

Impeller Options

Pump Division


For Low Flow and/orHigh Head Applicationssee page 18

Note: Recessed impellerpumps offer excellentsolids handling capa-bilities. See pages 52-55for details.

In-shop ImpellerAdjustment…Practicaland Productive!

Low predictable sealchamber pressure means longer seal life

Clearance is set to the rear cover in the shop – not with casing which is left in the piping

Lowest overallrequired NPSH of any standard pump

Rear cover wear surface versus casing means lowerreplacement parts costs

Exclusive Reverse VaneImpeller with balance holesoffers important performanceenhancing, maintenancereducing advantages.


17

The Front Vane OpenStyle Impeller has two sets of pumpingvanes and two criticaltolerance locations:• The front vane of the

impeller clearance tothe casing establishes:– performance– efficiencies

• The impeller pump outvanes clearance to therear cover establishes:– seal chamber

pressures andseal life

– thrust loads andbearing life

Reverse VaneImpeller and

RepeatablePerformance

Pump Division


Only OneToleranceImpeller VanesTo Cover

PumpPerformanceVanes

PumpOutVanes

ReverseVaneImpellerAdjustment

FrontVaneImpellerAdjustment

Diminished Performance

Effects of Wear & Impeller Readjustment

Thrust

Seal Chamber Pressure

Original Axial Thrust

Original Chamber Pressure

Cycles Reduce

Seal

Cha

mbe

r Pre

ssur

e/Ax

ial T

hrus

t

Consistent, Like-New Repeatable Performance

Effects of Wear & Impeller Readjustment

Thrust

Seal Chamber Pressure

Original Axial Thrust

Original Chamber Pressure

Cycles Repeat

Seal

Cha

mbe

r Pre

ssur

e/Ax

ial T

hrus

t

The Reverse VaneImpeller has only oneset of pumping vanesand one critical tolerancelocation – between theimpeller and rear cover –to establish:• Performance• Efficiencies• Seal chamber

pressures (i.e.,mechanical sealMTBPM)

• Thrust/axial loads(i.e., bearing life)

Since an impeller canonly be set in onedirection, the reversevane impeller hasinherent advantages.

Only a Flowserve Durcoreverse vane impeller offersrepeatable performance afterwear and impeller adjustment.

Performance Life Cycle:Flowserve Durco ReverseVane Impeller with Balance Holes

Effects of Wear• Thrust loads decrease as

seal chamber gap widens• Chamber pressure increases

as gap widens

Effects of ImpellerAdjustment to Seal Chamber• Original pressures and

loads re-established afteradjustment

• Repeatable MTBPMcycle life

An impeller cannot be adjustedto two locations.

Seal and bearing life arereduced due to increased loadsafter wear and maintenanceadjustment.

Performance Life Cycle:Front Vane Open StyleImpeller with Pump Out Vanes

Effects of Wear• Thrust loads increase as seal

chamber gap widens• Chamber pressure increases

as gap widens

Effects of Impeller Adjustmentto Casing• Chamber pressures and

bearing loads increase aftereach adjustment

• Non-repeatable MTBPMcycle life

Reverse Vane ImpellerFront VaneOpen Style Impeller


18

Improved Pump Reliabilitywith Extended MTBPM at LowFlow RatesFlowserve extends its ANSIpump design for high head/lowflow rates.• 1K1.5 x 1LF-4 • 1K1.5 x 1LF-8• 2K2 x 1LF-10• 2K3 x 1.5LF-13Offered in a wide selection of metallurgy.

Low Flow Applications• Flows to 50 m3/h (220 gpm)• Heads to 300 m (985 ft)• Pressures to 3100 kPa

(450 psi)• Temperatures to 370˚C (700˚F)

(See composite performancecurve page 28)

Flowserve DurcoSuperior ImpellerDesign Provides:• Minimal thrust loads• Reduced NPSH

requirements• Low seal chamber

pressures• Standard Mark 3A

or ANSI 3A™ power ends

• Broader applications range

• Longer seal andbearing life

Flowserve DurcoMark 3 Lo-Flo™

Pumps

Pump Division


Expanding Volute Casing

Circular Concentric Casing

100%

75%

50%

25%

0%0 100 200

0 25 50Lo-FloStandard

Flow

Perc

ent o

f max

imum

vib

ratio

nof

the

stan

dard

pum

p

gpm

m3/h

SHAFT VIBRATION

Circular concentriccasing and radialvane impeller with…“a unique twist.”

Extend MTBPM overstandard pumps• Radial loads are

reduced up to 90%at low flows

• Shaft vibration isreduced up to 50%(See graph)

• Bearing life is extended• Mechanical seal life

is extended

Conforms to standard ASME B73.1dimensions

Standard Mark 3power end maximizes interchangeability


19

Flowserve DurcoMark 3 Casing

Options

Pump Division


Flange Options include:DIN/PN16 (Class 150) flat flanges (standard);DIN/PN40 (Class 300) flat flanges; and raised face flanges

Flowserve Durco Casing Flangesare finished in accordancewith the ASME B16.5 standard which, in summary,says that the surface musthave a serrated finish having from 24 to 40grooves per 25 mm (1 inch),and the surface finish musthave a Ra roughness of 3.1 µm (125 µin) to 12.5 µm (500 µin)

Standard Class 150 Optional Class 300

Size Hole Size B.C. Hole Size B.C.mm (in) No. mm (in) mm (in) No. mm (in) mm (in)

25 (1) 4 16 (5/8) 79 (3-1/8) 4 19 (3/4) 89 (3-1/2)40 (1-1/2) 4 16 (5/8) 98 (3-7/8) 4 22 (7/8) 114 (4-1/2)

50 (2) 4 19 (3/4) 121 (4-3/4) 8 19 (3/4) 127 (5)80 (3) 4 19 (3/4) 152 (6) 8 22 (7/8) 168 (6-5/8)100 (4) 8 19 (3/4) 190 (7-1/2) 8 22 (7/8) 200 (7-7/8)150 (6) 8 22 (7/8) 241 (9-1/2) 12 22 (7/8) 270 (10-5/8)200 (8) 8 22 (7/8) 298 (11-3/4) 12 25 (1) 330 (13)250 (10) 12 25 (1) 362 (14-1/4) 16 29 (1-1/8) 387 (15-1/4)

Class 150 smooth flat face is standard.Class 300 smooth flat face and Class 150and Class 300 raised faces are available.

Standard Casings have fullymachined wet face

Item Part Typical Size

I Casing Drain 3/4-10 3/4 NPT

II Suction Nozzle Gage Connection 1/4 NPT

III Discharge Nozzle Gage Connection 1/4 NPT

IV Connection for Line to Seal Chamber 1/4 NPT

V Connection for Line to Seal Chamber 1/4 NPT

VI Flush Connection for Mechanical Seal 1/4 NPT

VII Bottom Tap in Seal Chamber 1/4 NPT

TAP VI(AVAIL. GR II 10 &13'',GR III)

TAP V (1/4 NPT.STD.)

TAP VII

TAP III

TAP II

TAP IV(OPP.)SIDE)

TAP I

TAPIV

Flange Drilling

Jacketed Casings for temperaturecontrol. Integral jacketed casingis shown here. Also available:Bolt-on aluminum jackets; andthermonized heat transfer tubes

Centerline Mounted Casings maybe used to reduce loads causedby thermal expansion. Jacketedfeet with inlet/outlet coolant portsfurther assure effectivetemperature control

Pressure/Temperature RatingFor Cast Jackets on Pump – Casing, Cover, and Stuffing Box

JACKET – TEMPERATURE °F

Hydrostatic Test Pressure is150% of Rated Pressure at-20 to 100°FJA

CKET

PRE

SSUR

E –

P.S.

I.G.

Optional Connections


20

Ultralign™ C-flange adapter withthe C-Plus precision alignmentoption delivers fast, repeatable,precisely accurate pump/motorshaft alignment.

Rigid coupling guard sideplates exceed ASME B15.1requirements and permitsvisual indication of rotation.


Pump/Motor ShaftAlignment

Pump Division


MotorAdapter

MotorMountingStudNut

SpacerRing

Jam NutMotorAdjuster

Standard Footed Motors• Special machine-cut C-Face of

assembled unit ensures shaftperpendicularity

• Motor is cantilevered, or freehung. (Footed design providessupport during shipping.)

• Tested and proven through405TC frame to 75 kW (100 hp), to ensure rigidassembly and freedom fromexcessive vibration and deflection

Motor and Bearing HousingFoot Mounting to Base Is NotRequired or Recommended• Reduces soft foot potential• Helps eliminate alignment

distortion caused by fulcrumeffect of soft foot boltingto the base

• Optimizes the ability of theC-Flange design to move themotor with the pump shaft,maintaining alignment

Adjustable Rigid Foot Mount• Assures accurate alignment

to the baseplate and piping• Designed to support all

normal loads

C-Flange Adapter• Parallel shaft alignment of

0.18 mm (0.007 in) nominalas governed by tolerancestackups

• Angular shaft alignment within0.001 mm/mm (0.001 in/in)

Unique C-Plus PrecisionAlignment System With Four-Point Motor AdjustmentTo achieve the bestprocess pump and motorMTBPM requires shaftalignments of less than0.05 mm (0.002 in). Butthe stackup tolerances ofeven the most perfectlycrafted C-Flange adaptedpump and motor pack-age can often producemisalignments up to0.38 mm (0.015 in). This unique C-Plus precision alignment system routinely deliversshaft alignments below0.05 mm (0.002 in) inless than thirty minutes.


21

With special attention to materialsand component options Mark 3pumps can be used to handleliquids ranging in temperaturefrom as low as -130°C (-200°F)to as high as 370°C (700°F).

It is always essential that thepressure and temperature of theapplication never exceed thepressure/temperature limits ofthe pump. These limits may befound in the chart on page 30of this bulletin.

Operation at either low or hightemperatures could requiremodification of the standardpump design to provide strengthof materials for pressurecontainment and resistance tothermal shock, a method forcooling or heating pumpcomponents, mechanical sealprotection, special gaskets, and/or maintenance of pump/motorshaft alignment.

The Ultralign C-flange motoradapter is recommended on anyapplication with temperaturefluctuations of more than38°C (100°F).

Low Temperature ApplicationsSpecial recommendations fortemperatures < -29°C (-20°F).

Casing Stainless steel alloyswith jacketing.

Seal Chamber Stainless steelwith jacketing. SealSentrydesigns with customized sealand flush plan as required bythe application.

Shaft and Sleeve Stainlesssteel alloy with optional replace-able alloy sleeves. Friction welded1144/316 (ZH) is recommended.

Gaskets Temperature/liquidcompatible.

Coupling Flexible memberspacer-type.

Power End Stainless steelbearing housing and adapter.ANSI 3A with syntheticlubricant recommended.

High Temperature ModificationsSpecial recommendations fortemperatures > 149°C (300°F).

Casing For heat transferliquids, recommendusing DIN/PN40 (ANSIClass 300) flanges.Temperatures > 149°C (300°F) require Grafoil®

impeller and casing gaskets. If Ultralignheavy-duty rigid designC-flange adapter is notused and temperature is> 177°C (350°F), thencenterline mounting ofthe casing with cooling of mounting legs isrecommended. IfUltralign is used, centerline mounting isnot recommended untiltemperature exceeds260°C (500°F).

Rear Cover For tempera-tures > 177°C (350°F)jacketing is recommend-ed. In addition, CBL orCBS with throat bushingis recommended to allow cooling jacket to be more effective.

Shaft Friction welded1144/316 (ZH) isrecommended.

Bearing HousingANSI 3A power end is recommended. Fortemperatures > 177°C (350°F) oil coolingsystem is recommended.For temperatures > 260°C(500°F), stainless steelbearing housings arerequired on Group 1pumps and stainlesssteel adapters arerequired on Groups 2 and 3 pumps.

Baseplate Rigidreinforced base withstilt/spring mounting.

Motor MountingUltralign C-flange adapter is recommendedon Groups 1 and 2.Hot alignment is always recommended.

Flowserve Durco Mark 3Specifications

For Low and HighTemperature

Services

Pump Division


Centerline MountedCasing

Jacketed Casing

Cooling Coil OilTemperature Control

Jacketed SealSentry SealChambers

Ultralign C-Flange MotorAdapter (See page 20)

Jacketed standard bore (CBS) isrecommended when cooling theseal chamber is the objective.

Jacketed FM chamber is preferredwhen protection of the processtemperature is important.

® Grafoil is a registered trademark ofUnion Carbide Corporation


22

Flowserve offers a family offive (5) types of pre-engineeredbaseplate designs to extendMTBPM and reduce costs.

Reducing internal stress andvibration extends MTBPM ofpump/motor packagesPump users specify rigidbaseplate designs to:• Provide torsional lateral and

longitudinal rigidity• Improve vibration dampening

through greater mass anddesign stiffness

• Protect against transit damage• Resist twisting during

installation• Maintain designed-in shaft

alignment• Reduce installation and shaft

alignment time• Reduce diaphragming or

separation from grout• Improve pump/motor/seal

MTBPM• Reduce total life cycle

pump/motor/seal costs

BaseLine can handlethe stress. Rigid design beginswith thick plate construction.Metal baseplate sizes:• 139 to 258 feature

13 mm (1/2 in) steel plate construction

• 264 to 280 feature 16 mm (5/8 in) steel plateconstruction

• 368 to 398 feature 19 mm (3/4 in) steel plateconstruction

Polybase baseplates areconstructed of 76 mm (3 in) to102 mm (4 in) solid polymerconcrete. Baseplate Types B, C,D and E are reinforced withadded structural support forimproved rigidity.

Baseplates Provide theBackbone for Extended MTBPMThe test stand provided threecorner support of the ungroutedbaseplates. The addition ofweights on the unsupportedfourth corner caused baseplate

distortion. This distortionresulted in measurable shaftmovement that can causeproblems with field installationsand negatively affect MTBPM.

The twist test is a means ofcomparing rigid baseplatedesigns. Correctly installedrigid baseplates should notexperience these twist effects.For more information aboutthe results of baseplate testingcontact the local Flowservesales representative.


BaseLine™Baseplate System

Pump Division


Baseplate Rigidity Test –Twist Mode

A

D

E

BC

0 45 91(100) (200)

Load - kg (lb)

Defle

ctio

n –

mm

(inc

h)

Type A 0.56 mm (0.022 in)

Type B 0.01 mm (0.004 in)

Type C 0.08 mm (0.003 in)

Type D 0.41 mm (0.016 in)

Type E 0.13 mm (0.005 in)

Maximum Parallel ShaftDeflection at Applied Force

Baseplates A through Eare shown on pages 24through 27.

1.78 (0.070)

1.52 (0.060)

1.27 (0.050)

1.02 (0.040)

0.08 (0.030)

0.51 (0.020)

0.25 (0.010)

0.00 (0.000)


23

BaseLine™

Pump Division


Most Commonly Requested Baseplate Features

Flowserve Durco ANSI Flowserve Durco ANSI Polybase*Pump Min./ Overall Anchor Pump Min./ Overall AnchorSize Base Max. Dimensions Bolt C Size Base Max. Dimensions Bolt C

Group No. NEMA LxW LxW Group No. NEMA LxW LxWFrame mm (inches) mm (inches) Frame mm (inches) mm (inches)

1K 139 143T 991 x 381 927 x 229 1K 139 143T 991 x 330 927 x 229184T (39 x 15) (361/2 x 9) 184T (39 x 13) (361/2 x 9)

148 256T 1219 x 457 1156 x 305 148 256T 1219 x 406 1156 x 305(48 x 18) (451/2 x 12) (48 x 16) (451/2 x 12)

153 326T 1346 x 533 1283 x 381 153 326T 1346 x 483 1283 x 381(53 x 21) (501/2 x 15) (53 x 19) (501/2 x 15)

2K 245 184T 1143 x 381 1080 x 229 2K 245 184T 1143 x 330 1040 x 229(45 x 15) (421/2 x 9) (45 x 13) (421/2 x 9)

252 215T 1321 x 457 1257 x 305 252 215T 1321 x 406 1257 x 305(52 x 18) (491/2 x 12) (52 x 16) (491/2 x 12)

258 286T 1473 x 533 1410 x 381 258 286T 1473 x 483 1410 x 381(58 x 21) (551/2 x 15) (58 x 19) (551/2 x 15)

264 365T 1626 x 559 1562 x 381 264 365T 1626 x 559 1562 x 381(64 x 22) (611/2 x 15) (64 x 22) (611/2 x 15)

268 405TS 1727 x 660 1664 x 483 268 405TS 1727 x 660 1664 x 483(68 x 26) (651/2 x 19) (68 x 26) (651/2 x 19)

280 449TS 2032 x 660 1969 x 483 280 449TS 2032 x 660 1969 x 483(80 x 26) (771/2 x 19) (80 x 26) (771/2 x 19)

3K 368 286T 1727 x 660 1664 x 483 3K 368 286T 1727 x 660 1664 x 483(68 x 26) (651/2 x 19) (68 x 26) (651/2 x 19)

380 405T 2032 x 660 1969 x 483 380 405T 2032 x 660 1969 x 483(80 x 26) (771/2 x 19) (80 x 26) (771/2 x 19)

398 449T 2489 x 660 2426 x 483 398 449T 2489 x 660 2426 x 483(98 x 26) (951/2 x 19) (98 x 26) (951/2 x 19)

Item Standard Options Type A Type B Type C Type D Type D Type ENo. Gp I & II Gp III with Rim

1 Machined coplanar mounting surfaces to 0.17 mm/m O O O O O O Y(0.002 in/ft) with 3.2 micron (125 µin) finish

2 Added structural (cross member) support N N Y Y Y Y Y3 Added torsional support with end caps NR Y Y D O O Y4 Tapped holes for four (4) motor adjuster bolts O O O Y O O Y5 Four (4) - SS transverse jack bolts - motor adjusters O O O Y O O Y6 Sloped surface to an integral drain 25 mm (1 in) N N C N N N Y7 Integral sloped drip rim around base N N N N N Y Y8 102 mm (4 in) diameter grout holes -

max. 762 mm (30 in) run to vent Y Y Y N Y Y Y9 13 mm (1/2 in) vent holes at corner of each chamber NR O NR NA Y Y Y

10 Lower surface shaped to anchor in grout N N N NA Y Y Y11 Integral lifting eyes at four (4) corners O Y O O Y Y Y12 Tapped leveling holes four (4) corners O O N S Y Y Y13 Continuous seam weld construction NA Y NA O Y Y Y14 Welded raised lip around grout hole(s) NR NR NR NA NR NR O15 Stilt mounting options with floor cups NR NR O Y D D D16 Spring mounted load designs NA NA O O D D D17 Catch basin (304SS or other materials) O O O O O NR Y18 Option for eight (8) total motor adjusters D D O D D D D19 Dimensions to ASME B73.1-2001 Y Y Y Y Y Y YY = Standard N = Not available NR = Not recommended D = Needs design timeO = Optional NA = Not applicable C = Sloped catch basin with 25 mm (1 inch) drain (option) S = Stilts for levelingSee pages 24-27 for BaseLine model descriptions

Flowserve Durco Baseplate DimensionsSpecify (new) ASME B73.1-2001 dimensions to avoid costly confusion between manufacturer and designer.

*330 mm (13 in) wide sizes are 92 mm (35/8 in) thick, 660 mm (26 in) wide sizes are 108 m (41/4 in) thick, while remaining sizes are 102 mm (4 in) thick.


24

Type A

Standard Baseplate,Foundation or Stilt Mounted13 mm (1/2 in) platethrough #258 size

16 mm (5/8 in) platethrough #280

• Designed for groutinstallation with 102 mm (4 in) diameter hole

• Stilt mounting recommendedonly on minimal stressinstallations

• Stilt cross bars 25 mm (1 in)thick located at ends, mountedthrough anchor bolt holes

• Not available with spring loadStyle D stilts

Group 3• 19 mm (3/4 in) top plate

construction all sizes• Side plate and reinforcement

members 13 mm (1/2 in)• Designed for grout

installations with 102 mm (4 in) diameter holes

304SS Catch BasinType A, C, and D



Pump Division


Baseplate Options

Optional Steel MountingBlocks Below 67 mm(25/8 in) In HeightSolid machined steel bar.Polybloc™ units are standard (page 25)

Optional Mounting Box67 mm (25/8 in) AndAbove In Height10 mm (3/8 in) min. seamwelded plate. Mountingblocks are optional

Drip Rim Pump End Only Type Aand C For full rim use Type D withdrain rim

Centering Nut – FactoryPre-Alignment ProcedureAll assemblies are pre-aligned at the factory usingcentering nuts which arereplaced with fastener nutsfor shipment. This allowsthe maximum movementof the motor in the field toavoid bolt binding duringfinal shaft alignment efforts

Traditional MotorAdjuster Jack BoltsTo align shafts to criticaltolerances with minimaldisturbance of indicators.Refer to page 25 to learnmore about the newFlowserve 8-Point™Adjustment.


Vibration damping of polymerconcrete versus cast iron

Cast Iron0.125 Sec.

Polymer Concrete0.125 Sec.

© John F. Kane, Composites Institute,The Society of the Plastics Industry, Inc.

25

Type B

Foundation or Stilt MountedFeaturing Flowserve Durco SolidPolymer Concrete Polybase™and Polybloc™ AdjustmentSystem

Polybase• Low installed cost• Superior vibration dampening• Corrosion resistant• Superior resistance to twisting

or diaphragming• Designed to be flat• Available with or without catch

basin or grout holes• Inserts can be located to

mount alternate equipmentconfiguration requirements

Solid cast reinforced polymerconstruction makes Polybaseextremely strong and rigid. Iteasily handles pump and motorloads without flexing problemscommonly associated with castiron or FRP baseplates.

Its excellent corrosion resistantproperties enable it to outper-form and outlast typical castiron or even steel baseplates.

Vibration DampingComparisonThe extraordinary vibrationdamping characteristics ofpolymer concrete significantlyreduce wear and tear on pumps,seals and motors. Greaterdampening characteristicsmean easier vibration analysisduring preventive maintenance. Polybloc™ – Motor

Mounting Block• Flatter and more

repeatable heighttolerances than steel

• Corrosion resistant• Superior vibration

dampening• Full foot support

(no overhang)• Shown with optional

Bloc-lock and fastenersupport

• Available for alternateequipment applications

Flowserve DurcoSolid Polymer

ConcretePolybase™

Pump Division


8-Point™ Adjuster• Allows precise motor

adjustment to reducealignment time

• Used with recessed bloc-lockdevice

• Can be used to help lockmotor in place once alignmentis established

Shim Allowance

Polybloc

Baseplate

All-ThreadMounting Stud

Jam Nut

Transverse JackBolt (Axial JackBolt is at 90°, not shown)

AdjusterBracket

MotorFoot

• Polybase is availablewith or without catchbasin or grout holes

• Inserts can be locatedto accommodatevarious pump/motortype configurations

• Polybloc is availablefor alternate equipmentapplications


26

Type C

Reinforced Baseplate,Stilt Mounted• Reinforced with 13 mm

(1/2 in) bottom plate• Gussets add strength and

dampen vibration• Standard with four (4) tapped

holes for motor adjuster jack bolts

• Designed without grout holefor maximum strength

• Stilts located under center ofpump and center of motor

Group 3Group 3 has similar profileto Standard Type A baseplate.Note the addition of extensivestructural support and theadded features that are standardwith the Type C design.

Type D

Reinforced Baseplate,Foundation Mounted• End caps are a recommended

option to add stiffness• I-beam adds torsional rigidity

and anchors grout• Bottom allows complete

grout contact

Reinforced Baseplatewith Drain Rim• Drain rim is sloped to 25 mm

(1 in) drain

Group 3 has similar profile toStandard Type A baseplate.Note the addition of extensivestructural support and theadded features that are standardwith the Type D design.

Special Support ofSizes 268 and 280• Cross bracing provided• Cross bars added• Additional gussets



Pump Division



27

Type E

“Ten Point” Heavy-DutyFoundation• Ten major features

are standard (Seechart page 23)

• Extensive doublereinforcement

• Bottom allowscomplete grout contactand grout anchoring

API 610 Comments• Sometimes specified for

rigidity and special features• Types B, D, and E meet the

intent of API 610 rigidity• Type E offers all design

criteria except grout hole is102 mm (4 in) diameter vs.

Pump Division


Grouted Baseplate Installations• Better dissipation of vibration• Better resistance to torsional

stress• Best design if piping designed

and installed free of stressloads

• Pipe loads stress pump andcause greater misalignmentwith the motor shaft, etc.

Rigid Stilt MountedInstallations• Better relief of pipe load

stress• Pump moves to point of

least resistance• Lowest installation cost

– Base must supply addedrigidity

– Vibration levels arehigher than in groutedinstallations

Style AFor Types A, B, and

C Baseplate19 mm (3/4 in) rod; 92 mm (35/8 in) to

229 mm (9 in) heightGroup 3 = 25 mm

(1 in) rod

Style BFor Types A, B, and

C Baseplate51 mm (2 in) pipe;

229 mm (9 in) to 419 mm (161/2 in) height

Style CFor Types A, B, and C Baseplate51 mm (2 in) pipe withcross bracing> 419 mm (161/2 in) height

Style DWith Spring Load For Types B and CBaseplate241 mm (91/2 in) to 292 mm (111/2 in) height

123 cm2 (19 in2) and our ventholes limit to 762 mm (30 in)maximum run vs. 458 mm(18 in). Raised lip aroundgrout hole is an option

Group 3 has similar profile to Standard Type A baseplate. Notethe addition of extensivestructural support andthe added features thatare standard with theType E design.

Benefits of Epoxy Grout• Better corrosion

resistance• Less shrinkage• Better bond to properly

prepared base• Better long-term life

cycle costs• Superior vibration

dampening

Optional PTFESlide Plateadds 38 mm (115/32 in)to height

Stilt with Floor Cup Options


28

Pump Division

Technical Data

m

320

280

240

200

160

120

80

40

0

ft1120

1040

960

880

800

720

640

560

480

400

320

240

160

80

0

TDH

– 60

Hz

(350

0 RP

M)

m

80

60

40

20

0

ft300

250

200

150

100

50

0

TDH

– 60

Hz

(175

0 RP

M)

Mark 3 Standard Performance Curves Mark 3 Standard Group 111/2x1LF-4

11/2x1-6

3x11/2-6

3x2-6

11/2x1LF-8

11/2x1-8

3x11/2-8

Mark 3 Standard Group 23x2-84x3-82x1LF-102x1-10A

3x11/2-10A3x2-10A4x3-104x3-10H6x4-106x4-10H

3x11/2LF-133x11/2-133x2-134x3-134x3-13HH6x4-13A

Mark 3 Standard Group 38x6-14A

10x8-14

6x4-16

8x6-16A

10x8-16

10x8-16H

10x8-17*

*Max. speed 1450 RPM

1234567

891011121314151617181920212223

24252627282930

1

23 4

987

6

5

10

1112

1314

16

21

19

20

18

1

2 34

9876

5

10

11 12 13

14

1516

17

21

22

23

26

2427 25 28

29

19 20

18 SCAL

E

CHAN

GE

FLOW – 50 Hz (2900 RPM)0 20 40 60 80 100 120 140 160 180 200 220 240 260 m3/h

0 200 400 600 800 1000 gpm ft

750

600

450

300

150

0

m

200

150

100

50

0TD

H –

50 H

z (2

900

RPM

)0 200 400 600 800 1000 1200 1400 gpm

0 50 100 150 200 250 300 m3/hFLOW – 60 Hz (3500 RPM)

FLOW – 50 Hz (1450 RPM)0 50 100 150 190 500 800 1100 1400 m3/h

0 200 400 600 800 2300 3800 5300 6800 gpmft

200

150

100

50

0

m60

50

40

30

20

10

0

TDH

– 50

Hz

(145

0 RP

M)

0 200 400 600 800 1000 2800 4600 6400 8200 gpm

0 50 100 150 200 227 400 800 1200 1600 m3/hFLOW – 60 Hz (1750 RPM)


29

Interchangeability

Pump Division

Technical Data

Mark 3 Standard Group 3



• •• • •• • •• • • • •• •• • •• • •

POW

ER E

ND

REAR

COV

ERS

REVE

RSE

VANE

IMPE

LLER

S

FRON

T V

ANE

OPEN

STY

LEIM

PELL

ERS

CASI

NGS

• • •• • • • •• •• • •• • •• • •• • • • • •• • •• • •• • •• •• • •• • •• • • • •• •• • •

POW

ER E

ND

REAR

COV

ERS

ADAP

TERS

REVE

RSE

VANE

IMPE

LLER

S

FRON

T V

ANE

OPEN

STY

LEIM

PELL

ERS

CASI

NGS

11/2X1LF-4

11/2X1-6

3X11/2-6

3X2-6

11/2X1LF-8

11/2X1-8

3X11/2-8

3X2-8

4X3-8

2X1LF-10

2X1-10A

3X11/2-10A

3X2-10A

4X3-10

4X3-10H

6X4-10

6X4-10H

3X11/2LF-13

3X11/2-13

3X2-13

4X3-13

4X3-13HH

6X4-13A

• • •• • • • •• • •• • •• • • • • •• • •• • • •

POW

ER E

ND

REAR

COV

ERS

ADAP

TERS

REVE

RSE

VANE

IMPE

LLER

S

FRON

T V

ANE

OPEN

STY

LEIM

PELL

ERS

CASI

NGS

8X6-14A

10X8-14

6X4-16

8X6-16A

10X8-16

10X8-16H

10X8-17

OR

OR

OR

The thirty (30) pumps in theMark 3 family are built withonly three different powerframes. SealSentry provides achoice of five (5) different sealchamber options to best meetcustomers’ specific needs.


30

PressureTemperature

Ratings

Pump Division

Technical Data

Curve B

Curve C Curve D

Curve A

350

300

250

200

150

100

50

0

MAX

. DIS

CHAR

GE P

RESS

URE-

kPa

TEMPERATURE °F

MAX

. DIS

CHAR

GE P

RESS

URE-

PSI

2250

2000

1750

1500

1250

1000

750

500

250

DCI D4D4LDV

D20DNI

CR28CR29CR35

DC2DC3TiTiPZr

CD4MDS

DSDCILow Limit

D2OCD4M

DNIUpper Limit

DCIUpper Limit

-100 0 100 200 300 400 500 600 700

-50 0 50 100 150 200 250 300 350TEMPERATURE °C

DMM

D2D2L

DINC

400

350

300

250

200

150

100

TEMPERATURE °F

MAX

. DIS

CHAR

GE P

RESS

URE-

PSI

MAX

. DIS

CHAR

GE P

RESS

URE-

kPa 2500

2250

2000

1750

1500

1250

1000

750

DCI

DS

D20

DNI

DMM

DINCDC2DC3

CD4M

D2D2LD4

D4LDV

DSDCILow Limit

D2OCD4M

DNIUpper Limit

-50 0 50 100 150 200 250 300 350TEMPERATURE °C

-100 0 100 200 300 400 500 600 700

DCIUpper Limit

TiTiPZr

-50 0 50 100 150 200 250 300 350TEMPERATURE °C

450

400

350

300

250

200

150

TEMPERATURE °F

MAX

. DIS

CHAR

GE P

RESS

URE-

PSI

MAX

. DIS

CHAR

GE P

RESS

URE-

kPa

3000

2750

2500

2250

2000

1750

1500

1250

DCI

DS

DNI

DMM

DINC

CD4M

Ti/TiP/Zr

DC2/DC3

D2/D2LD4/D4L/DV

DSDCILow Limit DCI

Upper Limit

-100 0 100 200 300 400 500 600 700

D2O/CD4M/DNIUpper Limit

D20

TEMPERATURE °F

MAX

. DIS

CHAR

GE P

RESS

URE-

PSI

MAX

. DIS

CHAR

GE P

RESS

URE-

kPa

3250

3000

2750

2500

2250

2000

1750

1500

1250

1000

750 -50 0 50 100 150 200 250 300 350

TEMPERATURE °C

-100 0 100 200 300 400 500 600 700500

450

400

350

300

250

200

150

100

DCIDS

D20

DNIDMM

DINCDC2DC3

CD4M

D2D2LD4

D4LDV

DSDCILow Limit D2O

CD4MDNI

Upper Limit

DCIUpper Limit

TiTiPZr

ANSI Std. In-Line Lo-FloRecessed Sealmatic UnitizedClass

GP1 GP2-8" GP2-10" GP2-13" GP3 GP1 GP2-10" GP2-13" GP1 GP2-10" GP2-13"150 Curve A Curve A Curve A Curve A Curve A Curve A Curve A Curve A Curve A Curve A NA Curve A Curve A Curve A300 Curve C Curve C Curve C Curve B Curve B Curve C Curve C Curve B Curve C Curve C Curve D Curve B Curve B Curve B


31

SuctionPressure

Ratings

Pump Division

Technical Data

Curves shown are for standarddouble row outboard bearings.Duplex angular contact bear-ings normally will allow highersuction pressures.

MAXIMUM ALLOWABLE SUCTION PRESSURE – lbf / in2

MAXIMUM ALLOWABLE SUCTION PRESSURE – lbf / in2

MARK 3REVERSE VANE IMPELLERMAX. SUCTION PRESURE1750 RPM

SUCTION PRESSURE IS LIMITED ONLY BY THE PRESSURE TEMPERATURE RATINGS FOR ALL OPEN IMPELLER PUMP SIZES AT ALL SPECIFIC GRAVITIES AND FOR SEMI-OPEN IMPELLER PUMP SIZES 10x8-14, 8x6-16A, 10x8-16 AND 10x8-16H THROUGH 2.0 SPECIFIC GRAVITY. CONSULT DURCO SALES ENGINEERS FOR SPECIFIC GRAVITIES ABOVE 2.0.

SPEC

IFIC

GRA

VITY

SPEC

IFIC

GRA

VITY

MARK 3 GROUP 1 & 2REVERSE VANE IMPELLER MAX. SUCTION PRESSURE3500 RPM

FOR ALL OPEN IMPELLER PUMPS SUCTION PRESSURE IS LIMITED ONLY BY THE PRESSURE TEMPERATURE RATINGS.

MAXIMUM ALLOWABLE SUCTION PRESSURE – Bar

2.4

2.0

1.6

1.2

.8

.4

0

0 40 80 120 160 200 240 280 320 360 400

2K6x4-13A2K4x3-13

3K8x6-14A

2K4x3-10H

1K3x1.5-8

2K4x3-10

2K3x2-132K6x4-10

1K3x1.5-61K3x2-62K3x2-82K4x3-82K3x1.5-10A2K3x2-10A2K6x4-10H2K4x3-13HH

2K3x1.5-132K2x1-10A

1K1.5x1-61K1.5x1-8

MAXIMUM ALLOWABLE SUCTION PRESSURE – Bar

2.4

2.0

1.6

1.2

.8

.4

0

0 40 80 120 160 200 240 280 320 360 400

2K2x1-10A

1K1.5x1-62K6x4-10

2K3x2-8

1K3x2-6

1K1.5x1-8

2K4x3-81K3x1.5-6

2K3x1.5-10A

2K3x2-10A1K3x1.5-8

2K3x1.5-13

2K3x2-13

2K4x3-13/1102K4x3-10

0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25

0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25

Contact Engineering for moreinformation.


32

Flowserve DurcoMark 3 General Technical Data

Pump Division

Technical Data

Min. Max. Sphere ImpellerCasing Thru Imp. Eye Area

Pump Pump Thickness Rev. Vane Open Rev. Vane OpenGroup Size mm (in) mm (in) mm (in) cm2 (in2) cm2 (in2)

1K11/2x1LF-4 10 (3/8) N/A 9 (1/4) N/A 5 (0.80)1K11/2x1-6 10 (3/8) 10 (3/8) 10 (13/32) 20 (3.1) 23 (3.6)1K3x11/2-6 10 (3/8) 11 (7/16) 11 (7/16) 28 (4.4) 28 (4.4)

GP 1 1K3x2-6 10 (3/8) 11 (7/16) 10 (3/8) 36 (5.6) 45 (7.0)1K11/2x1LF-8 10 (3/8) N/A 9 (1/4) N/A 15 (2.4)1K11/2x1-8 10 (3/8) 9 (11/32) 12 (15/32) 20 (3.1) 24 (3.7)1K3x11/2-8 11 (7/16) 14 (9/16) 10 (13/32) 36 (5.5) 34 (5.3)

2K3x2-8 11 (7/16) 14 (17/32) 14 (9/16) 44 (6.8) 45 (7.0)2K4x3-8 11 (7/16) 13 (1/2) 13 (1/2) 80 (12.4) 77 (12)

2K2x1LF-10 11 (7/16) N/A 21 (13/16) N/A 15 (2.4)2K2x1-10A 11 (7/16) 10 (13/32) 8 (5/16) 23 (3.5) 26 (4.1)

2K3x11/2-10A 11 (7/16) 12 (15/32) 12 (15/32) 35 (5.5) 36 (5.6)2K3x2-10A 11 (7/16) 14 (17/32) 11 (7/16) 41 (6.4) 41 (6.4)2K4x3-10 13 (1/2) 17 (21/32) 14 (9/16) 85 (13.2) 77 (12)

GP 2 2K4x3-10H 13 (1/2) 20 (25/32) 18 (11/16) 85 (13.2) 66 (10.3)2K6x4-10 13 (1/2) 18 (11/16) 16 (5/8) 127 (19.6) 127 (19.6)

2K6x4-10H 13 (1/2) 14 (9/16) 16 (5/8) 142 (22) 171 (26.5)2K3x11/2LF-13 11 (7/16) N/A 8 (5/16) N/A 32 (4.9)2K3x11/2-13 11 (7/16) 15 (19/32) 10 (3/8) 48 (7.5) 39 (6.1)

2K3x2-13 11 (7/16) 10 (13/32) 10 (13/32) 48 (7.5) 51 (7.9)2K4x3-13 11 (7/16) 18 (11/16 ) 18 (11/16) 98 (15.2) 81 (12.5)

2K4x3-13HH 11 (7/16) 18 (11/16) N/A 98 (15.2) N/A2K6x4-13A 11 (7/16) 26 (11/32) 25 (1) 187 (29) 188 (29.1)3K8x6-14A 13 (1/2) 41 (15/8) 32 (11/4) 292 (45.3) 288 (44.7)3K10x8-14 16 (5/8) 38 (11/2) 32 (11/4) 410 (63.6) 385 (59.6)3K6x4-16 16 (5/8) 30 (13/16) 27 (11/16) 172 (26.7) 172 (26.7)

GP 3 3K8x6-16A 14 (9/16) 32 (11/4) 32 (11/4) 292 (45.3) 270 (41.8)3K10x8-16 14 (9/16) 40 (19/16) 32 (11/4) 410 (63.6) 415 (64.4)

3K10x8-16H 13 (1/2) 41 (15/8) 32 (11/4) 506 (78.5) 508 (78.7)3K10x8-17 14 (9/16) 40 (19/16) N/A 515 (71.8) N/A

Mechanical Properties

Material ACI Equivalent Wrought ASTM Min. Tensile Strength, Min. Yield Point Min. % Nominal HardnessDesignations Symbol Designation Designation Specifications* MPa psi MPa psi Elongation (Brinell)Ductile Iron DCI None None A395 414 60,000 276 40,000 18 143-187Carbon Steel DS None Carbon Steel A216 Gr. WCB 483 70,000 248 36,000 22 150

CF-8 D2 CF8 304 A744 & A351, Gr. CF-8 483 70,000 207 30,000 35 150CF-3 D2L CF3 304L A744 & A351, Gr. CF-3 483 70,000 207 30,000 35 150

CF-8M D4 CF8M 316 A744 & A351, Gr. CF-8M 483 70,000 207 30,000 30 154CF-3M D4L CF3M 316L A744 & A351, Gr. CF-3M 483 70,000 207 30,000 30 154

Durcomet 100 CD4M CD4MCuN Ferralium A995, Gr. 1B 690 100,000 483 70,000 16 224Durimet 20 D20 CN7M Alloy 20 A744 & A351, Gr. CN-7M 428 62,000 172 25,000 35 133

CY-40 DINC CY40 Inconel 600 A494, Gr. CY-40 483 70,000 193 28,000 30 147M-35 DM M351 Monel 400 A494, Gr. M-35-1 448 65,000 172 25,000 25 130Nickel DNI CZ100 Nickel 200 A494, Gr. CZ-100 345 50,000 124 18,000 10 118

Chlorimet 2 DC2 N7M Hastelloy B2 A494, Gr. N-7M 525 76,000 276 40,000 20 180Chlorimet 3 DC3 CW6M Hastelloy C-276 A494, Gr. CW-6M 497 72,000 276 40,000 25 180

DC-8 DC8 None None None 300Titanium Ti None Titanium B367, Gr. C-3 448 65,000 380 55,000 15 200

Titanium-Pd Ti-Pd None Titanium-Pd B367, Gr. C-8A 448 65,000 380 55,000 15 200Zirconium Zr None Zirconium B752, Gr. 702C or 705C 380 55,000 276 40,000 12 190

Max. Temp. Max. Temp. Max.Coros. Min. w/o with Max. Allow. Horsepower Shaft BearingAllow. Temp. Cooling Cooling 1150 1750 3500 End Play Size

mm (in) °C (°F) °C (°F) °C (°F) kw (hp) kw (hp) kw (hp) mm (in) (SKF)3 (1/8) -29 (-20) 260 (500) 260 (500) 10 (13) 15 (20) 30 (40) 0.03 (0.001) (I.B.)

to -212 to 350 to 350 6207C3(-350) (700) (700) (O.B.)with with with 5306AC3

modif. modif. modif.

3 (1/8) -29 (-20) 175 (350) 260 (500) 38 (50) 56 (75) 112 (150) 0.03 (0.001) (I.B.)to -212 to 350 6310C3(-350) (700) (O.B.)with with 5310AC3

modif. modif.

3 (1/8) -29 (-20) 350 (175) 260 (500) 157 (210) 242 (325) – 0.03 (0.001) (I.B.)to -212 to 350 6314C3(-350) (700) (O.B.)with with 5314AC3

modif. modif.

6x4-10 maximum 175 hp (130 kW)

*Whenever an ASTM specification is cited, the alloy will conform to the chemical and mechanical requirements of the latest edition of the specification.


33

Flowserve Definition:Minimum continuous stableflow is the lowest flow at whichthe pump can operate and stillconform to the bearing life,shaft deflection and bearinghousing vibration limits of ASME B73.1-2001.

Minimum continuous thermalflow is the lowest flow at whichthe pump can operate and stillmaintain the pumped liquidtemperature below that whichwill have an adverse effect onthe pump or seal performance,or on the quality of the pumpedliquid.

Flowserve DurcoMark 3 MinimumFlow & Fasteners

Pump Division

Technical Data

* In some cases, the 3K6x4-16 can be used at lower than 50% of BEP, by making an impeller modification.

Flowserve Standards for Pressure Containing FastenersPump Alloy Type of Fastener New Alloy Code Description

Alloy/Non-metallic Casing Fastener B7TF* ASTM A193 Grade B7 (AISI 4140, 4142, 4145,4140H, 4142H, or 4145H steel w/PTFE coating &Zinc rich primer)

Casing Nut SRTF* ASTM A194 Grade 2H (Carbon Steel w/PTFEcoating & Zinc rich primer)

Gland Fastener B81 ASTM A193 Grade B8 class 1 (304 stainlesssteel)

Gland Nut E8 ASTM A194 Grade 8 (304 stainless steel)

Cover/Repeller Cover B7TF* same as aboveFastener (Sealmatic)

High Silicon Iron HSI Pump Fasteners In general, same materials as alloy pump(HSI) fasteners listed above

Stuffing Box Yoke B81 same as aboveFastener (HSI)

Stuffing Box Yoke E8 same as aboveNut (HSI)

Carbon Steel or Casing Fastener B7* ASTM A193 Grade B7 (AISI 4140, 4142,Ductile Cast Iron 4145, 4140H, 4142H, OR 4145H steel)(DS/DCI) Casing Nut SR2H* ASTM A194 Grade 2H (Carbon Steel)

Gland Fastener B81 same as aboveGland Nut E8 same as aboveCover/Repeller Cover B7* same as aboveFastener (Sealmatic)

Mag Drive Shell/Holder Fastener B7TF* same as aboveShell/Ring Fastener B7TF* same as above

*For temperatures < -29°C (-20°F),fastener alloy must be B8C2, which isASTM A193 Grade B8 class 2 (304,

Minimum Continuous FlowMCF, % BEP

Dimension 3500/2900 1750/1450 1180/960Designation Pump Size RPM RPM RPM

AA 1.5x1-6 10% 10% 10%AB 3x1.5-6 10% 10% 10%AC 3x2-6 20% 10% 10%AD 1.5x1-8 10% 10% 10%AB 3x1.5-8 10% 10% 10%A60 3x2-8 20% 10% 10%A70 4x3-8 20% 10% 10%A05 2x1-10 10% 10% 10%A50 3x1.5-10 10% 10% 10%A60 3x2-10 30% 10% 10%A70 4x3-10 30% 10% 10%

4x3-10H NA 10% 10%A80 6x4-10 40% 10% 10%

6x4-10H NA 20% 10%A20 3x1.5-13 30% 10% 10%A30 3x2-13 40% 10% 10%A40 4x3-13 40% 20% 10%

4x3-13HH NA 50% 30%A80 6x4-13 60% 40% 10%A90 8x6-14 NA 40% 15%A100 10x8-14 NA 40% 10%A105 6x4-16 NA 50% 10%A110 8x6-16 NA 50% 10%A120 10x8-16 NA 50% 10%A120 10x8-17 NA 50% 10%

Contact Flowserve Engineeringif there is a need to use thispump at a lower flow.

304N, 305, 321, 347 stainless steel).Nut alloy must be E8.


34

Pump Division

Technical Data

Pump Parts Group 1

ITEM DESCRIPTION

100 CASING

103 IMPELLER

104 IMPELLER GASKET

105 SHAFT

106 REAR COVER PLATE

107 REAR COVER GASKET

108 BEARING HOUSING ADAPTER N/A

109 BEARING HOUSING FOOT

109A SHIM

110 GLAND - PACKING OPT.

111 STUD - GLAND

111A HEXNUT - GLAND

112 PACKING SEAL CAGE HALVES OPT.

113 PACKING OPT.

114 DEFLECTOR INBOARD OPT.

115 STUD - CASING

115A HEXNUT - CASING

118 OIL SEAL INBOARD

119 BEARING HOUSING

120 BEARING INBOARD

121 BEARING OUTBOARD

122 OIL SLINGER OPT.

124 LOCKNUT - BEARING

125 LOCKWASHER - BEARING

129 OIL SEAL OUTBOARD

130 KEY - SHAFT/COUPLING

131 O-RING - ADAPTER N/A

133 TRICO OILER (Not Shown)

134 BEARING HOUSING DRAIN PLUG

135 BEARING HOUSING VENT PLUG

136 CAPSCREW - FOOT

139 CAPSCREW - BEARING HOUSING N/A

140 CAPSCREW - COVER/ADAPTER

153 MECHANICAL SEAL

177 HOOK SLEEVE OPT.

190 GLAND - MECHANICAL SEAL

190G GLAND GASKET

200 SIGHT GAGE - BEARING HOUSING

201 BEARING CARRIER

201A SET SCREW - BEARING CARRIER

201B O-RING - BEARING CARRIER

201C BEARING CARRIER RETAINER

201D CLAMP RING BEARING HOUSING OPT.

201E SOC-CAPSCREW CLAMP OPT.

Option for duplex angularcontact bearings


35

Pump PartsGroup 2 and Group 3

Pump Division

Technical Data

ITEM DESCRIPTION

100 CASING

103 IMPELLER

104 IMPELLER GASKET

105 SHAFT



108 BEARING HOUSING ADAPTER


109A SHIM


111 STUD - GLAND

111A HEXNUT - GLAND


113 PACKING OPT.


115 STUD - CASING



119 BEARING HOUSING

120 BEARING INBOARD







131 O-RING - ADAPTER




136 CAPSCREW - FOOT

139 CAPSCREW - BEARING HOUSING


153 MECHANICAL SEAL



190G GLAND GASKET


201 BEARING CARRIER




201D CLAMP RING BEARING HOUSING*201E SOC-CAPSCREW CLAMP*

*OPTIONAL GROUP 2


Group 2 bearingretainer (201C) shown


Baseplate Mounting Dimensions

Max. HA *HD1▲ *HD2▲ **HGPump Motor Weight mm (in) HB mm (in) mm (in) HE HF mm (in) HHGroup Baseplate Frame kg (lb) Metal Poly. mm (in) Metal Poly. Metal Poly. mm (in) mm (in) Metal Poly. mm (in)

139 184T 50 (111) 381 (15) 330 (13) 991 (39) 229 (9) 226 (87/8) 273 (103/4) 269 (105/8) 114 (41/2) 927 (361/2) 95 (33/4) 92 (35/8)

148215T

74 (163) 457 (18) 406 (16) 1219 (48)241 (91/2) 238 (93/8)

283 (111/8) 280 (11) 152 (6) 1156 (451/2) 105 (41/8) 102 (4)GP 1 256T 267 (101/2) 264 (103/8)1K

153286T

96 (212) 533 (21) 483 (19) 1346 (53)302 (117/8) 283 (111/8) 302 (117/8) 283 (111/8)

191 (71/2) 1283 (501/2) 121 (43/4) 102 (4)19 (3/4)

326TS 327 (127/8) 308 (121/8) 327 (127/8) 308 (121/8)245 184T 59 (129) 381 (15) 330 (13) 1143 (45) 305 (12) 302 (117/8) 349 (133/4) 346 (135/8) 114 (41/2) 1080 (421/2) 95 (33/4) 92 (35/8)252 215T 80 (177) 457 (18) 406 (16) 1321 (52) 319 (123/8) 312 (121/4) 359 (141/8) 355 (14) 152 (6) 1257 (491/2) 105 (41/8) 102 (4)258 286T 106 (234) 533 (21) 483 (19) 1473 (58) 330 (13) 312 (121/4) 375 (143/4) 355 (14) 1410 (551/2) 102 (4)

GP 2264

326T149 (328) 559 (22) 559 (22) 1626 (64)

330 (13) 312 (121/4)375 (143/4) 355 (14)

191 (71/2)1562 (611/2)2K

365T 352 (137/8) 334 (131/8) 121 (43/4) 102 (4)268 405TS 186 (409) 1727 (68) 378 (147/8) 365 (143/8) 378 (147/8) 365 (143/8) 1664 (651/2) 108 (41/4)

25 (1)280 449TS 218 (481) 2032 (80) 403 (157/8) 391 (153/8) 403 (157/8) 391 (153/8) 1969 (771/2) 108 (41/4)

GP 3368 286T 213 (470) 660 (26) 660 (26) 1727 (68) 241 (91/2) 1664 (651/2) 308 (121/8) 108 (41/4)

3K380 405T 273 (601) 2032 (80) 489 (191/4) 483 (19) 1969 (771/2) 232 (91/8) 108 (41/4)398 449T 338 (746) 2489 (98) 2426 (951/2) 206 (81/8) 108 (41/4)

Pump DimensionsSize USuction X Pump V

Pump ANSI Discharge Weight X O D E1 E2 CP F H Dia. Keyway Min. YGroup Desig. Max. Imp. Dia. kg (lb) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in)

1K11/2x1LF-4 47 (103) 165 (61/2) 298 (113/4) 133 (51/4) 76 (3) 0 445 (171/2) 184 (71/4) 16 (5/8) 22.23 4.76 x2.38 56 (23/16) 102 (4)AA 1K11/2x1-6 44 (97) (7/8) (3/16x3/32) 51 (2)AB 1K3x11/2-6 51 (112)

GP 1 AC 1K3x2-6 53 (116)1K 1K11/2x1LF-8 47 (103) 56 (23/16)

AA 1K11/2x1-8 47 (103) 51 (2)1K3x11/2-8 56 (124) 190.5 (71/2) 368 (141/2) 177.8 (7)

A60 2K3x2-8 90 (200) 242 (91/2) 450 (173/4) 210 (81/4) 124 (47/8) 92 (35/8) 597 (231/2) 318 (121/2) 16 (5/8) 28.58 6.35x3.18 67 (25/8) 102 (4)A70 2K4x3-8 103 (227) 280 (11) 490 (191/4) (11/8) (1/4x1/8)

2K2x1LF-10 95 (210) 216 (81/2) 425 (163/4) 70 (23/4)A05 2K2x1-10A 95 (210) 216 (81/2) 425 (163/4) 67 (25/8)A50 2K3x11/2-10A 100 (220) 216 (81/2) 425 (163/4)A60 2K3x2-10A 103 (226) 242 (91/2) 450 (173/4)A70 2K4x3-10 101 (225) 280 (11) 490 (191/4)

GP 2 A70 2K4x3-10H 112 (249) 318 (121/2) 572 (221/2) 254 (10)2K A80 2K6x4-10 130 (290) 343 (131/2) 597 (231/2) 38.1 9.5x4.76

A80 2K6x4-10H 149 (328) 343 (131/2) 597 (231/2) (11/2) (3/8 x3/16)

2K3x11/2LF-13 112 (250) 266 (101/2) 520 (201/2) (28.58) (6.35x3.18) 70 (23/4)A20 2K3x11/2-13 112 (250) 266 (101/2) 520 (201/2) (11/8) (1/4x1/8) 67 (25/8)A30 2K3x2-13 116 (258) 292 (111/2) 546 (211/2)A40 2K4x3-13 126 (281) 318 (121/2) 572 (221/2)A40 2K4x3-13HH 126 (281) 318 (121/2) 572 (221/2)A80 2K6x4-13A 145 (324) 343 (131/2) 597 (231/2)A90 3K8x6-14A 306 (680) 406 (16) 775 (301/2) 368 (141/2) 203.2 (8) 114.3 (41/2) 860 (337/8) 476 (183/4) 22 (7/8) 60.33 15.88x7.94 102 (4) 152 (6)A100 3K10x8-14 408 (899) 457 (18) 826 (321/2) (23/8) (5/8x5/16)

3K6x4-16 291 (641) 406 (16) 775 (301/2)

GP 3 A110 3K8x6-16A 377 (832) 457 (18) 826 (321/2)3K A120 3K10x8-16 416 (917) 483 (19) 851 (331/2)

A120 3K10x8-16H 450 (992) 483 (19) 851 (331/2)3K10x8-17 379 (835) 508 (20) 876 (341/2)

*GP 1 – HD2 applies to 3x11/2-8 only. ▲ Includes spacer under pump, as necessary. ** “HG” Dimensions applied to the lower pad height. With some basesGP 2 – HD1 applies to 3x2-8, 4x3-8, 2x1-10A, 3x11/2-10A, 3x2-10A, and 4x3-10. this will occur at pump end and with others at motor end.

HD2 applies to 4x3-10H, 6x4-10, 6x4-10H, 3x11/2-13, 3x2-13, 4x3-13, 4x3-13HH, and 6x4-13A.GP 3 – HD1 applies to all GP3 sizes.

36

Pump and BaseplateDimensions

Pump Division

Technical Data


37

Flowserve foundries are widelyregarded as among the best inthe world pouring alloys fromcommon austenitic stainlesssteels to light reactive alloyssuch as titanium. All FlowserveDurco wet end castings carry alimited lifetime guarantee.

Attesting to the world classquality of its castings,Flowserve was the first highalloy foundry in the UnitedStates of America to haveearned approval by Germany’sTechnischer ÜberwachungsVerein (TUV).

Alloy Materials

Pump Division

Technical Data

Alloy MaterialsEquivalent

ACI Wrought ASTMDesignation Symbol Designation Designation Specifications*

Ductile Iron DCI None None A395Carbon Steel DS None Carbon Steel A216 Gr. WCBCF-8M D4 CF8M 316 A744, Gr. CF-8MDurcomet 100 CD4M CD4MCuN Ferralium® 255 A995, Gr. 1BDurimet 20 D20 CN7M Alloy 20 A744, Gr. CN-7MDurcomet 5 DV None None NoneCY-40 DINC CY40 Inconel® 600 A494, Gr. CY-40M-35 DM M351 Monel® 400 A494, Gr. M-35-1Nickel DNI CZ100 Nickel 200 A494, Gr. CZ-100Chlorimet 2 DC2 N7M Hastelloy® B-2 A494, Gr. N-7MChlorimet 3 DC3 CW6M Hastelloy® C-276 A494, Gr. CW-6MDuriron® D None None A518, Gr. 1Durichlor 51® D51 None None A518, Gr. 2Superchlor® SD77 None None NoneDC-8 DC8 None None NoneTitanium Ti None Titanium B367, Gr. C-3Titanium-Pd Ti-Pd None Titanium-Pd B367, Gr. C-8AZirconium Zr None Zirconium B752, Gr. 702C*Alloys conform to the chemical and mechanical requirements of the latest edition of the ASTM specification.® Duriron, Durichlor 51 and Superchlor are registered trademarks of Flowserve Corporation.® Ferralium is a registered trademark of Langley Alloys.® Hastelloy is a registered trademark of Haynes International, Inc.® Inconel and Monel are registered trademarks of International Nickel Co. Inc.


38

Impeller: Shall be the reversevane design, and shall be openon the back and shrouded onthe front. The impeller clearanceshall be set against the rearcover, not the casing, allowingall settings to be done in themaintenance shop, without thecasing. The impeller shallmaintain low seal chamberpressures, which shall bepublished on the pumpperformance curve, and shallbe repeatable after maintenance.The impeller clearance shall beset externally. The impeller-to-shaft connection shall be ametal-to-metal fit. A siliconO-ring encapsulated in PTFEshall be used to protect theimpeller threads. Impeller shallbe balanced to ISO 1940 Grade6.3 criteria.

Shaft: Shall be of solidconstruction to maximizestrength and rigidity. The shaftshall consist of a steel powerend friction welded to an alloywet end. Shaft deflection shallnot exceed 0.05 mm (0.002 in).The shaft key slot shall bedesigned with a machinedradius “sled runner” edge toprovide maximum strength atthe coupling. Critical surfacesshall be ground to 0.005 mm(±0.0002 in), maximum rough-ness at the seal chamber shallbe 0.40 µm (16 µin).

Rear Cover: Shall be suitablefor accepting various sealdesigns from all major sealmanufacturers. Cylindrical borestandard, cylindrical bore over-size, and tapered options shallbe available. Tapered optionsshall include eight evenlyspaced, tapered and sloped flowmodifying devices integrallycast into the seal chamber. Theflow modifiers shall facilitatemovement of solids, vapors,and heat away from themechanical seal. The taperedseal chambers shall be designed

to be self-flushing. For optimumperformance the seal and glandshall be selected to locate theseal faces directly in the flushpath. Integrally cast jacketsshall be available.

Bearings: Shall be large, heavy-duty, ball bearings. The inboardbearing shall be a single row,deep groove. The outboard shallbe double row angular contact,deep groove. An optional duplexangular contact outboard bearingshall be available for high thrustload applications. Both bearingsshall be located by a shoulder onthe shaft. The inboard bearingshall float in the bearing housing,while the outboard bearing shallbe locked in place in the bearingcarrier. The bearings shall exceedB10 life of 17,500 hours andallow less than 0.025 mm (0.001 in) end play.

Bearing Housing: Shall besealed to prevent contaminationof the lubricant. The oil fill holeat the top of the housing shallbe plugged. No vented constantlevel oiler shall be used. Thehousing shall be sealed withInpro VBXX bearing isolators.A magnetic drain plug shall beused. A large easy to read oneinch NPT sight glass shall beused. The impeller clearanceshall be set by the micrometer

adjustment method. This method shall causethe shaft and impeller tomove axially. Indicatorsshall be cast into thebearing carrier whichrepresent 0.102 mm(0.004 in) of axial impeller travel. Thisallows accurate impellerclearance to be estab-lished externally withoutthe use of measurementdevices. The bearingcarrier threads shall beprotected by two O-rings.

Coupling Guard: Shallconform to ASME B15.1and shall be of the“clamshell” design.It shall extend from themotor to the bearinghousing, but shall not be attached to either.The guard shall be bolted to the baseplate.

Baseplate: Shall be of areinforced rigid designand shall conform to thedimension requirementsof ASME B73.1-2001.

Flowserve DurcoMark 3

How To SpecifyProcess Pumps

Pump Division

Technical Data

Flowserve Suggests theFollowing SpecificationsWhen PurchasingANSI Pumps:

Design: Shall be of ahorizontal, end suction,single stage, centerlinedischarge, “back pull-out”construction, meetingthe design criteria of the ASME B73.1-2001standard.

General: All wetted partsshall be permanentlymarked with the materialof construction. Castparts shall have a condi-tional lifetime castingguarantee. Stainless steelparts shall be cast to theASME A744 standard.

Casing: Shall have afully machined wet faceand shall be capable ofbeing foot or centerlinemounted. Flange finishesshall conform toASME/ANSI B16.5 andshall be available inDIN/PN16 or 40 (150 or300 Class), flat or raisedfaces. Casing and rearcover plate shall have 3 mm (1/8 in) corrosionallowance.


39

The Sealmatic PrincipleThis pump does not leak whilerunning because the Sealmaticdesign utilizes a repeller, adynamic sealing device, toevacuate liquid from the sealchamber. This is accomplishedby creation of a liquid interfaceseal in the repeller chamber thatprevents leakage along the shaftduring operation. For sealingwhile the pump is stopped,three types of sealing arrange-ments are offered for maximumapplication flexibility: Check-matic end face lip seal arrange-ment; dry-running end face sealdesigns; and the packed stuff-ing box design.

The Sealmatic design is alsoavailable with unitized self-priming and recessed impellerpumps.

This family of repellers allowsthe Sealmatic to be used inapplications having a widerange of suction pressures.Hydraulic performanceconforms to the Standard Mark 3 reverse vane impellercurves.

Applications• Tough sealing

applications wherea flush is impractical

• Evaporator service• Continuously

running pumps

Flowserve DurcoMark 3 Sealmatic

Pump Division

Mark 3 Sealmatic

A choiceof sealingarrangements

Liquid/airinterface

Repeller

Stopped Running

Repellerchamber

DynamicallySealingRepeller

Dynamically sealing repellereliminates the need for conven-tional mechanical seals.Advanced static seal optionsare available. Dimensionallyinterchangeable with all ANSI pumps.


40

Pump Division

Mark 3 Sealmatic

FLOW – 50 Hz (2900 RPM)0 20 40 60 80 100 120 140 160 180 200 220 240 260 m3/h

0 200 400 600 800 1000 gpmm

240

200

160

120

80

40

0

ft900

800

700

600

500

400

300

200

100

0

TDH

– 60

Hz

(350

0 RP

M)

ft

600

500

400

300

200

100

0

m

150

100

50

0

TDH

– 50

Hz

(290

0 RP

M)

0 200 400 600 800 1000 1200 1400 gpm

0 40 80 120 160 200 240 280 m3/hFLOW – 60 Hz (3500 RPM)

3X1.5M-13

3X2M-13

4X3M-13

4X3M-10

3X2M-10A

3X1.5M-10A

2X1M-10A 6X4M-10

m

80

60

40

20

0

ft300

250

200

150

100

50

0

TDH

– 60

Hz

(175

0 RP

M)

SCAL

E

CHAN

GE

FLOW – 50 Hz (1450 RPM)0 50 100 150 190 500 800 1100 1400 m3/h

0 200 400 600 800 2300 3800 5300 6800 gpmft

200

150

100

50

0

m60

50

40

30

20

10

0

TDH

– 50

Hz

(145

0 RP

M)

0 200 400 600 800 1000 2800 4600 6400 8200 gpm

0 50 100 150 200 227 400 800 1200 1600 m3/hFLOW – 1750 RPM (60 Hz)

6X4M-13A

6X4M-16

8X6M-16A

8X6M-14A

10X8M-14

10X8M-16

10X8M-16H

4X3M-13

4X3M-10H

6X4M-10

6X4M-10H

4X3M-10

3X2M-133X1.5M-13

2X1M-10A

3X1.5M-10A

3X2M-10A

Sealmatic PerformanceCurves


41

Checkmatic® Seal Design• Individual elastomeric lip seals

run in light contact against theradial faces of a standardmechanical seal seat

• Lip seals turn with the shaftso the seat, not the shaft orsleeve, is the wear part

• PFA encapsulated silicon rubber O-rings help secure the lip seals to the shaft

• Lip seals available in Viton1,EPDM and Fluoraz2

Dry-Running End FaceSeal Design• State-of-the-art technology

utilizing various seals suchas the John Crane 28LD sealdesigned to run completely dry

• Positive sealing duringshutdown

• Easy installation• Also available in double

cartridge design, typicallyused with a nitrogen barrier

Packed Stuffing Box Design• Self-lubricating, flexible

graphite packing• Simple, trouble-free design• Recommended use of DC8

shafts or DC8 sleeves forabrasion and corrosionresistance

1 Registered trademark of E.I. duPont Company2 Registered trademark of Green, Tweed and

Company

SealmaticShaft Seal Designs

Pump Division

Mark 3 Sealmatic


42

Sealmatic Dimensions

Pump Division

Mark 3 Sealmatic


Max. HA HD1 HD2 *HGPump Motor Weight mm (in) HB mm (in) mm (in) HE HF mm (in) HHGroup Baseplate Frame kg (lb) Metal Poly. mm (in) Metal Poly. Metal Poly. mm (in) mm (in) Metal Poly. mm (in)

245 184T 59 (129) 381 (15) 330 (13) 1143 (45) 305 (12) 302 (117/8) 349 (133/4) 346 (135/8) 114 (41/2) 1080 (421/2) 95 (33/4) 92 (35/8) 19 (3/4)252 215T 80 (177) 457 (18) 406 (16) 1321 (52) 314 (123/8) 312 (121/4) 359 (141/8) 355 (14) 152 (6) 1257 (491/2) 105 (41/8) 102 (4) 19 (3/4)258 286T 106 (234) 533 (21) 483 (19) 1473 (58) 330 (13) 312 (121/4) 375 (143/4) 355 (14) 1410 (551/2) 102 (4)

GP 2264

326T149 (328) 559 (22) 559 (22) 1626 (64)

330 (13) 312 (121/4)375 (143/4) 355 (14)

191 (71/2)1562 (611/2)2K

365T 352 (137/8) 333 (131/8) 121 (43/4)102 (4)

268 405TS 186 (409) 1727 (68) 378 (147/8) 365 (143/8) 378 (147/8) 365 (143/8) 1664 (651/2) 108 (41/4)25 (1)

280 449TS 218 (481) 2032 (80) 403 (157/8) 391 (153/8) 403 (157/8) 391 (153/8) 1969 (771/2) 108 (41/4)

GP 3368 286T 213 (470) 660 (26) 26 (660) 1727 (68) 241 (91/2) 1664 (651/2) 308 (121/8) 108 (41/4)

3K380 405T 273 (601) 2032 (80) 489 (191/4) 19 (483) 1969 (771/2) 232 (91/8) 108 (41/4)398 449T 338 (746) 2489 (98) 2426 (951/2) 206 (81/8) 108 (41/4)

Pump DimensionsUSuction Discharge Pump V

Size Size Weight X O D E1 E2 CP F H Dia. Keyway Min. YPump mm (in) mm (in) kg (lb) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in)

2K2x1M-10A 50 (2) 25 (1) 94 (210) 216 (81/2) 425 (163/4) 210 (81/4) 124 (47/8) 92 (35/8) 597 (231/2) 318 (121/2) 16 (5/8) 28.58 6.35x3.18 67 (25/8) 102 (4)2K3x11/2M-10A 76 (3) 38 (11/2) 100 (220) 216 (81/2) 425 (163/4) (11/8) (1/4 x1/8)

2K3x2M-10A 76 (3) 50 (2) 103 (226) 242 (91/2) 450 (173/4)2K4x3M-10 102 (4) 76 (3) 101 (225) 280 (11) 490 (191/4)

2K4x3M-10H 102 (4) 76 (3) 112 (249) 318 (121/2) 572 (221/2) 254 (10)2K6x4M-10 152 (6) 102 (4) 130 (290) 343 (131/2) 597 (231/2) 38.1 9.5x4.76

2K6x4M-10H 152 (6) 102 (4) 149 (328) 343 (131/2) 597 (231/2) (11/2) (3/8 x3/16)

2K3x11/2M-13 76 (3) 38 (11/2) 112 (250) 266 (101/2) 520 (201/2) 28.58 6.35x3.182K3x2M-13 76 (3) 50 (2) 116 (258) 292 (111/2) 546 (211/2) (11/8) (1/4x1/8)

2K4x3M-13 102 (4) 76 (3) 126 (281) 318 (121/2) 572 (221/2)2K6x4M-13A 152 (6) 102 (4) 145 (324) 343 (131/2) 597 (231/2)3K8x6M-14A 203 (8) 152 (6) 306 (680) 406 (16) 775 (301/2) 368 (141/2) 203.2 (8) 114.3 (41/2) 860 (337/8) 476 (183/4) 22 (7/8) 60.33 15.88x7.94 102 (4) 152 (6)3K10x8M-14 254 (10) 203 (8) 408 (899) 457 (18) 826 (321/2) (23/8) (5/8x5/16)

3K6x4M-16 152 (6) 102 (4) 291 (641) 406 (16) 775 (301/2)3K8x6M-16A 203 (8) 152 (6) 377 (832) 457 (18) 826 (321/2)3K10x8M-16 254 (10) 203 (8) 416 (917) 483 (19) 851 (331/2)

3K10x8M-16H 254 (10) 203 (8) 450 (992) 483 (19) 851 (331/2)

HD1 for the following pumps: 2x1M-10A, 3x11/2M-10A, 3x2M-10A, 4x3M-10 * “HG” Dimensions applied to the upper pad height. With some basesHD2 for the following pumps: 4x3M-10H, 6x4M-10, 6x4M-10H, 3x11/2M-13, 3x2M-13, 4x3M-13, 6x4M-13A this will occur at pump end and with others at motor end.


43

Pump Division

Mark 3 Sealmatic

ITEM DESCRIPTION

100 CASING

103 IMPELLER

104 IMPELLER GASKET

105 SHAFT





109A SHIM


111 STUD - GLAND

111A HEXNUT - GLAND


113 PACKING OPT.


115 STUD - CASING



119 BEARING HOUSING

120 BEARING INBOARD











136 CAPSCREW - FOOT



153 MECHANICAL SEAL


180 COVER - REPELLER

181 REPELLER


190G GLAND GASKET


201 BEARING CARRIER




201D CLAMP RING BEARING HOUSING*201E SOC-CAPSCREW CLAMP*330 MECHANICAL SEAL

*OPTIONAL GROUP 2

Group 2 bearing retainer (201C) shown

Sealmatic PartsGroup 2 and Group 3

Group 3 double rowbearing retainer


44

As the priming liquid circu-lates, it re-entrains more air,creating a partial vacuum inthe suction line. The sumpliquid is then pushed upwardby atmospheric pressure.

3. Priming AchievementAfter the priming cycle hasevacuated all of the air fromthe suction pipe, the sumpliquid floods the volute, air separator and primingchamber, and pumping outof the discharge pipe begins.The Unitized Self-Priming is fully primed and now operates exactly as a standardflooded-suction FlowserveDurco pump.

4. Sump Empty, Pump StoppedWhen the pump stops, theliquid in the discharge pipingflows back through thepump, leaving the primingchamber filled with sufficientliquid for the next primingcycle. Except for the first fill-up of the priming chamber and an occasional“topping off” in dry climates,the Flowserve Durco UnitizedSelf-Priming is automatic and trouble-free.

UnitizedSelf-Priming

Pump Division

Mark 3 Self-Priming

➀

➃➁

➂

Applications• Sump service• Tank car unloading• Duplex pumping lift stations• Flyash pond transfer• Waste acid transfer• Waste treatment lagoon

service

Priming Cycle CutawayIllustrations1. Sump Filling, Pump

StoppedThe casing is shown withthe initial prime liquid, whichpermanently stays in thecasing. This serves as thepriming liquid necessary toentrain the air contained inthe suction line.

2. Pump Start-UpAs the impeller spins, thepriming liquid entrains airfrom the suction pipe andis pumped into the airseparator/priming tankportion of the casing. In thischamber the air separatesfrom the priming liquid andvents out the discharge whilethe priming liquid flowsthrough the bypass slot inthe bottom of the casing andback into the impeller eye.

Costs less to buy, installand service than submersiblepumps. Utilizes the same powerend, shaft, seal chamber andimpeller as the StandardANSI Pump. Only the casingis special.


45

UnitizedSelf-PrimingPerformance Curves

Pump Division

Mark 3 Self-Priming

3 X 2US-10

3 X 2US-10

2 X 1.5US-10A

3 X 2US-10

2 X 1.5US-10A

6 X 4US-13A4 X 3US-13

3 X 2US-13

4 X 3US-10H

3 X 2US-10

2 X 1.5US-10A 3 X 2US-13

4 X 3US-13

6 X 4US-13A

4 X 2US-10H

FLOWSERVE DURCO MARK 3UNITIZED SELF-PRIMING3500 RPM PUMPS

320 400 480 560240160800

40

80

120

160

200

240

280

320

360

400

440

0

0 20 40 60 80 100 120 140 160

0

20

40

60

80

100

120

T.D.HIN

FEET

T.D.H INMETERS

CAPACITY CUBIC METERS PER HOUR

CAPACITY US GALLONS PER MINUTE


400 600 800 10003002001000

20

40

60

80

100

120

140

160

180

200

0

0 20 40 60 80 100 140 180 220

0

10

20

30

40

50

60

T.D.HIN

FEET

T.D.H INMETERS

260 300

1200




40 50 60 703020100

20

40

60

80

100

0

0 100 200 300 400

0

50

100

150

200

250

300

T.D.HIN

FEET

350

80 90 100CAPACITY CUBIC METERS PER HOUR



80 100 120 1406040200

10

20

30

40

50

0

0 100 200 300 400 500 600 800 1200

0

20

40

60

80

100

140

160

120

200 250 300CAPACITY CUBIC METERS PER HOUR



400 500 600 7003002001000

10

20

30

40

50

60

70

80

90

100

0

0 20 40 60 80 100 120 140 160

0

5

10

15

20

25

30

T.D.HIN

FEET

T.D.H INMETERS

180 200

800



3 X 2US-13

3 X 2US-10

1.5 X 1US-6/60

4 X 3US-10H

4 X 3US-13

6 X 4US-13A

SCALECHANGE

2 X 1.5US-10A

1.5 X 1.5US-82

2X1.5US-10A

SCALECHANGE

1.5 X 1US-6

T.D.HIN

FEET

T.D.H INMETERS

T.D.H INMETERS

1.5 X 1US-6

1.5 X 1.5US-82

1.5X1.5US-82

1.5 X 1.5US-82

60 Cycle

50 Cycle


46

Pump Division


Graph CS = Minimum Submergence, ft

0 2 4 6 8 10 12 14 16

293 16

220 12

146 8

73 4

0.6 1.2 1.8 2.4 3.0 3.6 4.2 4.8S = Minimum Submergence, m

Static Suction LiftThe higher the lift, the greaterthe amount of air in the suctionpipe to evacuate and the longerthe priming time. Exampleillustrated: A 3x2US-13 pumpwith a 330 mm (13 in) impellerlifting water 3 m (10 ft) wouldtake 18 seconds (Graph A). A lift of 4.6 m (15 ft) would take 30 seconds.

Specific GravityAs specific gravity increases,priming times also increase.For example: A pump previouslylifting 3 m (10 ft) of water (1.0 sp.Gr.) is now pumping aliquid with a specific gravity of1.4. The 3 m (10 ft) actual lift x 1.4 sp.gr. becomes an effec-tive lift of 4.3 m (14 ft), for apriming time of 26 seconds. To be conservative for specific

gravities lower than 1.0, use 1.0in the equation. The practicallimit of a self-priming pump is 6.1 m (20 ft), divide thisamount by specific gravity todetermine the actual lift limit.For example: 6.1 m (20 ft) ÷ 1.4= 4.4 m (14.3 ft) maximumpossible lift.

Suction Pipe SizeThe self-priming pump primesby evacuating the air in thesuction piping. The primingtime curves are based on thevolume of air contained in apipe length equal to the actualstatic lift shown plus thatcontained in 1 m (3 ft) ofhorizontal run into the pump.The pump example lifting liquid3 m (10 ft) and horizontally 1 m (3 ft) contains 0.0188 m3

(1150 in3) of air in the suction

pipe (Graph B).Extending the pipe’shorizontal run to 2.7 m(9 ft) gives an additional0.0090 m3 (530 in3) ofair to evacuate beforeachieving prime.

16801150 x 18 sec = 26 seconds, or 8 seconds longerpriming time.

When a self-primingpump primes, a signifi-cant volume of air isevacuated from thesuction line. A self-priming pump will notwork unless there is away for the air to bevented. Flowservesuggests that a vent line be run from thedischarge as shown on the diagram to the above.

UnitizedSelf-Priming

Technical Data

Pump Division

Mark 3 Self-Priming

Suct

ion

Pipe

Velo

city

, m/s

Suct

ion

Pipe

Velo

city

, f/s

Individual pumpcurves found inBulletin P-12-102contain graphs of bothhydraulic performanceand priming time.Once a pump hasbeen selected basedon speed, efficiency,flow and head,priming times maybe determined fromthese graphs. Aspump performancevaries with RPM andimpeller diameter,priming times alsochange. Factors suchas static suction liftdistance, specificgravity and suctionpipe size also have adirect bearing uponpriming times.

Graph A Graph B

LENGTH OF PIPE, ft0 10 20 30 40 50 60 70 80 90 100

VOLU

ME,

m3

VOLU

ME,

in3

0.115

0.098

0.082

0.066

0.049

0.033

0.016

0

7000

6000

5000

4000

3000

2000

1000

0

LENGTH OF PIPE, m

150

mm

(6 in

) STD

PIP

E10

0 m

m (4

in) S

TD P

IPE

80 mm (3

in) S

TD PIPE

50 mm (2 in) STD PIPE

40 mm (1.5 in) STD PIPE

0 3 6 9 12 15 18 21 24 27 30

47

Unitized Self-PrimingDimensions

Pump Division

Mark 3 Self-Priming

Pump DimensionsUPump V

Weight X O CP D D5 D6 D9 F H Dia. Keyway Min.Pump kg (lb) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in)

1J11/2x1US-6 54 (120) 121 (43/4) 318 (121/2) 511 (201/8) 133 (51/4) 115 (49/16) 115 (49/16) 102 (4) 168 (65/8) 64 (21/2) 22 (7/8) 4.8x2.4 56 (23/16)1K11/2x11/2US-8 70 (154) 98 (37/8) 378 (147/8) 521 (201/2) 178 (7) 140 (51/2) 140 (51/2) 127 (5) 178 (7) 102 (4) 22 (7/8) (3/16x3/32)

2K2x11/2US-10A 145 (320) 152 (6) 464 (181/4)725 (289/16) 210 (81/4)

175 (67/8) 175 (67/8)133 (51/4) 229 (9) 102 (4) 29 (11/8) 6x3 (1/4x1/8)

2K3x2US-10 154 (340) 165 (61/2) 476 (183/4) 185 (71/4) 185 (71/4)2K3x2US-13 191 (420) 203 (8) 559 (22) 725 (289/16)

225 (87/8) 225 (87/8)133 (51/4) 229 (9) 102 (4) 70 (23/4)

2K4x3US-10H 195 (430) 191 (71/2) 572 (221/2)776 (309/16)

254 (10)146 (53/4) 279 (11) 127 (5)

29 (11/8) 6x3 (1/4x1/8)2K4x3US-13 236 (520) 216 (81/2) 597 (231/2) 243 (9 9/16) 243 (9 9/16)

2K6x4US-13A 286 (630) 254 (10) 660 (26) 813 (32) 279 (11) 268 (109/16) 268 (109/16) 152 (6) 316 (127/16) 127 (5) 29 (11/8) 6x3 (1/4x1/8)


Max. HA HD1▲ HD2▲ HD3 HGPump Base- Motor Weight mm (in) HB mm (in) mm (in) mm (in) HE HF mm (in) HHGroup plate Frame kg (lb) Metal Poly. mm (in) Metal Poly. Metal Poly. Metal Poly. mm (in) mm (in) Metal Poly. mm (in)

139 184T 50 (111) 381 (15) 330 (13) 991 (39) 229 (9) 226 (87/8) 273 (103/4) 269 (105/8) 114 (41/2) 927 (361/2) 95 (33/4) 92 (35/8)

148215T

74 (163) 457 (18) 406 (16) 1219 (48)241 (91/2) 245 (95/8)

283 (111/8) 286 (111/4) 152 (6) 1156 (451/2) 105 (41/8) 108 (41/4)GP 1 256T 267 (101/2) 270 (105/8)1K

153286T

96 (212) 533 (21) 483 (19) 1346 (53)302 (117/8) 289 (113/8) 302 (117/8) 289 (113/8)

191 (71/2) 1283 (501/2) 121 (43/4) 108 (41/4)19 (3/4)

326TS 327 (127/8) 314 (123/8) 327 (127/8) 314 (123/8)245 184T 59 (129) 381 (15) 330 (13) 1143 (45) 305 (12) 302 (117/8) 349 (133/4) 346 (135/8) 375 (143/4) 372 (145/8) 114 (41/2) 1080 (421/2) 95 (33/4) 92 (35/8)252 215T 80 (177) 457 (18) 406 (16) 1321 (52) 319 (123/8) 302 (117/8) 359 (141/8) 346 (135/8) 384 (151/8) 372 (145/8) 152 (6) 1257 (491/2) 105 (41/8) 92 (35/8)258 286T 106 (234) 533 (21) 483 (19) 1473 (58) 330 (13) 312 (121/4) 375 (143/4) 355 (14) 400 (153/4) 381 (15) 1410 (551/2)

GP 2264

326T149 (328) 559 (22) 559 (22) 1626 (64)

330 (13) 318 (121/2)375 (143/4) 362 (141/4) 400 (153/4) 381 (15)

191 (71/2)1562 (611/2)2K

365T 352 (137/8) 340 (133/8) 121 (43/4) 108 (41/4) 25 (1)268 405TS 186 (409)

660 (26) 660 (26)1727 (68) 378 (147/8) 365 (143/8) 378 (147/8) 365 (143/8) 400 (153/4) 381 (15)

241 (91/2)1664 (651/2)

280 449TS 218 (481) 2032 (80) 403 (157/8) 391 (153/8) 403 (157/8) 391 (153/8) 403 (157/8) 384 (151/8) 1969 (771/2)

GP 1 – HD1 applies to 1J11/2x1US-6 ▲ Includes spacer under pump, as necessary.HD2 applies to 1K11/2x11/2US-82

GP 2 – HD1 applies to 2L2x11/2US-10A and 2K3x2US-10HD2 applies to 2K3x2US-13, 2K4x3US-13 and 2K4x3US-10HHD3 applies to 6x4US-13A


48

Unitized Self-PrimingPartsGroup 1 and Group 2

Pump Division

Mark 3 Self-Priming

ITEM DESCRIPTION

100 CASING

103 IMPELLER

104 IMPELLER GASKET

105 SHAFT



108 BEARING HOUSING ADAPTER*109 BEARING HOUSING FOOT

109A SHIM


111 STUD - GLAND

111A HEXNUT - GLAND


113 PACKING OPT.


115 STUD - CASING



119 BEARING HOUSING

120 BEARING INBOARD







131 O-RING - ADAPTER*133 TRICO OILER (Not Shown)



136 CAPSCREW - FOOT

139 CAPSCREW - BEARING HOUSING*140 CAPSCREW - COVER/ADAPTER

153 MECHANICAL SEAL



190G GLAND GASKET


201 BEARING CARRIER







Group 2 shown. Seepage 32 for Group 1pumping unit details.

* GROUP 2 ONLY.


49

Combine Flowserve DurcoPriming Tanks with most standard pumps to create simple and reliable self-primingsystems.

Benefits• Allows the pump to sit high

and dry. Easy access formaintenance. No need fortroublesome vertical sumppumps or elaborate hoistingequipment.

• Zero priming time reducesstress on seals and bearingsthat occurs during primingcycle with self-priming pumpdesigns.

• Air bleed line from pumpdischarge common with self-priming pump is not required.

Applications• Sump pump service• Tank car unloading• Flows to 1364 m3/h (6000 gpm)

Special designs to 5682 m3/h(25 000 gpm)

Common Pump Types• Standard ANSI/ISO• Sealless pumps• Recessed impeller/vortex type

pumps Solids to 100 mm (4 in)• Low flow/high head• Non-metallic

Materials ofConstruction• Carbon Steel• 316SS• FRP• Others on request

• Capacities to 318 m3/h(1400 gpm)

• Heads to 52 m (170 ft)

Also available:the original unitizedself-priming pump

Flowserve Durco Pre-Engineered

Priming Tanks

Pump Division

Mark 3 Self-Priming


50

Selection Criteria1. Select priming tank with

maximum design capacityequal to or greater than themaximum process flow ratefrom Table 3 on page 51.

2. Determine NPSHa for thepump, including head lossthru priming tank fromTable 1.

3. Confirm from Table 3 thatsuction lift required doesnot exceed tank capabilities.

4. Select pump to assureNPSHr of pump is less thanNPSHa of system. GoodPump Practice recommendsthe difference be 1.5 m (5 ft)or 20%, whichever is greater.

Design/Installation Criteria1. Provide suction pipe prior

to the priming tank the samesize as tank inlet and outlet.Pipe length from the tank tothe liquid level should belimited to 6 m (20 ft). Thisprovides the maximumvolume of air the tank willprime. A change in pipedimensions must not resultin greater air volume to beprimed. NPSH and submer-gence factors must also beconsidered.

2. Provide 10 diameters ofstraight suction pipe topump inlet where possible.Suction pipe between thepriming tank and pumpmay be reduced (eccentricreducer) to match pumpsuction size.

3. Install a low levelswitch in the sumpto ensure that theminimum submer-gence is maintained.The minimumsubmergencedepends on the fluidvelocity at the pipeinlet. That fluidvelocity varies withthe inlet diameter. Ifthe liquid level in thesump allows air intothe suction pipe, thetank will lose primeand the pump willempty the tank ofliquid. See Submer-gence Table 2.

4. Provide a check valveon discharge pipeto avoid siphonproblems.

5. Seal all pipe connec-tions and the pumpto prevent air ingressand loss of prime.

6. Anchor the primingtank to the foundationthrough holes in padson bottom of tanklegs. See certifieddimension prints forsize and locations.

7. Provide proper pipingsupport.

Flowserve Durco Pre-Engineered

Priming Tanks

Pump Division

Mark 3 Self-Priming

2 4 6 8 10 12 14 16 ft.6 1.2 1.8 2.4 3.0 3.7 4.3 4.9 m

S = Min. Submergence

Ft/s m/s2

16 4.9

12 3.7

8 2.4

4 1.2

Suct

ion

Pipe

Velo

city

Table 2: SubmergenceTable 2: Submergence

Table 1: Priming Tank Head Loss CurvesFlow – m3/h

0 6 11 34 57 85 114 170 227 341 454 681 908 1136 1363

0 25 50 150 250 375 500 750 1000 1500 2000 3000 4000 5000 6000Flow – gpm

876543210

2.42.11.81.51.20.90.60.30

Head

Los

s – ft

Head Loss – m

Denotes scale change

➀

➆➅➄

➃➂➁

Curve 1 GB 50/GBM11Curve 2 GB 250/GBM57Curve 3 GB 500/GBM114Curve 4 GB1000/GBM227

Curve 5 GB 2000/GBM454Curve 6 GB 4000/GBM908Curve 7 GB 6000/GBM1363

Table 1: Priming Tank Head Loss Curves

Suct

ion

Pipe

Inlet

Velo

city

Head

Los

s –

m

Head

Los

s –

ft

Flow – gpm

Flow – m3/h

Denotes scale change


51

1. Ensure maximum testpressure limited to 100 kPa(14.7 psig). Priming tanksoperate in vacuum conditionsand are designed as“containment vessels”.

2. Remove the tank fill plug tovent tank while initially fillingthe sump. This avoids an airpocket in submerged pipe.

3. Fill priming tank with pumpdischarge isolation valveclosed and pump suctionisolation valve open. A tank

Pump Division

Mark 3 Self-Priming

��

Check Valve(Required)

DischargeIsolationValve

SuctionIsolationValve

15 mm (1/2 in)NPT Tank Overfill Port

25 mm (1 in) NPTTank Fill Port

AnchorPads

▲

▲

▲

▼

▼

▼

▼

▲

▼

▼

300 mm (12 in) minimum liquid levelto pipe inlet

(see submergence)

▲

▼

AMaximum

6 m (20 ft) maximum piping length(see design/installation notes 1 and 2)

F min3F

▼

▼

▼

▼

F

E

▼

▼ B

C

D

Low levelswitch recommendedto avoid airentering thepipe inlet,causing loss of prime

High levelswitch

Table 3: Pre-Engineered Priming Tank Dimensional DataA B C D E F

Tank Model* Maximum Flow Maximum Lift** Tank Diameter Tank Height Flange Height Inlet/Outlet Width Piping Diameterm3/h (gpm) m (ft) mm (in) mm (in) mm (in) mm (in) mm (in)

GB50 (GBM11) 11 (50) 5.2 (17) 650 (24) 1100 (43) 360 (14) 770 (30) 40 (11/ 2)GB250 (GBM57) 57 (250) 5.2 (17) 800 (30) 1360 (54) 460 (18) 970 (38) 80 (3)GB500 (GBM114) 114 (500) 5.2 (17) 950 (36) 1540 (61) 490 (19) 1120 (44) 100 (4)GB1000 (GBM227) 227 (1000) 5.2 (17) 1100 (42) 1740 (69) 590 (23) 1270 (50) 150 (6)GB2000 (GBM454) 454 (2000) 5.2 (17) 1300 (48) 2200 (87) 770 (30) 1530 (60) 200 (8)GB4000 (GBM908) 908 (4000) 4.0 (13) 1400 (54) 2240 (88) 970 (38) 1680 (66) 250 (10)GB6000 (GBM1363) 1363 (6000) 4.0 (13) 1600 (60) 2600 (102) 1200 (47) 1930 (76) 300 (12)

* GB - ASME Flanges - U.S. customaryGBM - ISO Flanges - S.I. (metric)

All dimensions are approximateand for illustration purposes only.For exact dimensions request certified dimensional prints.

** Divide by specific gravity foreach application. Engineereddesigns can provide greaterlift capabilities.

NOTICE: Internal chamber designis proprietary technology and critical to successful operation

fill port and an overfillport are provided toassure proper fillingand operation.

4. Apply suitable sealantto fill port and overfillport plugs and replaceprior to operating.

Operating Criteria


52

Trouble-free pump ing of solid,stringy or fibrous slurries.Delivers efficient operation andlow NPSHr.

Vortex Pumping Action is yourBest Choice for:• Erosive/corrosive slurries• Degradation sensitive crystals• Shear sensitive liquids• Stringy solids• Waste water

Impeller DynamicsThe vortex created by thespinning impeller does thepumping with less than 20%of the media actually contactingthe impeller. Abrasive wear isminimized and solids integrityis maintained. Precision-castimpellers ensure peak energyefficiency and low NPSHrequirements. Rear pump-outvanes are used as necessary to ensure low, positive sealchamber pressure and to expelsolids from the seal area, thusmaximizing mechanical sealand packing life. The impeller is set to the rear cover plate –just like the standard reversevane impeller.

Casing DynamicsThe cylindrical volute designcombined with the impellerspinning “out of the flow”minimize radial loads on theimpeller. The result is longerseal life as well as maximizedradial bearing life. The circularflow path and tangentialdischarge also contribute tomaximum pump life.

Applications• Abrasive waste water• Biological sludge• Clarifier underflow• 5% coke slurry• Diatomaceous earth

slurry• Floculant sludge• Latex• Lime mud slurry• Organic slurry• Polymer slurry• Resin slurry• Rubber crumb slurry• Sodium hydroxide• Catalyst slurry

RecessedImpeller

Pump Division

Mark 3 Recessed Impeller


53

Recessed ImpellerPerformance Curves

Pump Division


0 10

2 x 2R-10(CLAW)

2 x 2R-6

20 30 40 50 60 70 80

0 50 100 150 200 250 300 350

440

T.D.HIN

FEET

400

360

320

280

240

200

160

120

80

40

0

T.D.H INMETERS

120

140

100

80

60

40

20

0


CAPACITY U S GALLONS PER MINUTE

FLOWSERVE DURCO MARK 3COMPOSITE GROUP 1 & 2RECESSED IMPELLER PUMP 3500 R.P.M.

0 40020 40 60 80 100 200 300

0 80 160 240 320 400 800 1200 1600

T.D.HIN

FEET

100

4 X 3R-13

SCALECHANGE

2 X 2R-103 X 3R-10

6 X 4R-13

2X2R-6

80

60

40

20

0

T.D.H INMETERS

30

25

20

15

10

5

0




0 50 100 150 200 250 300 350

0 10 20 30 40 50 60 70 80

80

2 X 2R-10(CLAW)

2 X 2R-6

70

60

50

40

30

20

10

0

240

280

200

160

120

80

40

0




0 80 160 240 320 400 480 560 640

0 20 40 60 80 100 120 140 300200 400 500

T.D.HIN

FEET

48

4 X3R-13

3 X 3R-102 X 2R-10

6 X 4R-13

2X2R-6

40

32

24

16

8

0

T.D.H INMETERS

200

160

120

80

40

0




0 20 40 60 80 100 200 300 400

0 100 200 300 400 800 1200 1600 2000

T.D.HIN

FEET

200

4 X 3R-13

6 X 4R-13

3 X 3R-102 X 2R-10

160

120

80

40

0

T.D.H INMETERS

60

50

40

30

20

10

0




0 40 80 120 160 200 240 280

0 160 320 480 640 800 960 1120 1280

T.D.HIN

FEET

4 X 3R-13

6 X 4R-13

50

40

30

20

10

0

T.D.H INMETERS

12

14

10

8

6

4

2

0



FLOWSERVE DURCO MARK 3COMPOSITE GROUP 2RECESSED IMPELLER PUMP 860 R.P.M.

0 200 400 600 800 1000 1200 1400 1600

0 40 80 120 160 200 240 280 320 360

4 X 3R-13

6 X 4R-13

24

20

16

12

8

4

0

100

80

60

40

20

0



FLOWSERVE DURCO MARK 3COMPOSITE GROUP 2RECESSED IMPELLER PUMP 960 R.P.M.

500

16

1800

1000 1500 2000

SCALECHANGE

SCALECHANGE

2X2R-6

T.D.HIN

FEET T.D.H INMETERS

T.D.HIN

FEET

T.D.H INMETERS

60 Cycle

50 Cycle


54

Recessed Impeller Dimensions

Pump Division



Max. HA HD1** HD2** HGPump Motor Weight mm (in) HB mm (in) mm (in) HE HF mm (in) HHGroup Baseplate Frame kg (lb) Metal Poly. mm (in) Metal Poly. Metal Poly. mm (in) mm (in) Metal Poly. mm (in)

139 184T 50 (111) 381 (15) 330 (13) 991 (39) 229 (9) 226 (87/8) 114 (41/2) 927 (361/2) 95 (33/4) 92 (35/8)

148215T

74 (163) 457 (18) 406 (16) 1219 (48)241 (91/2) 245 (95/8)

152 (6) 1156 (451/2) 105 (41/8) 102 (4)GP 1 256T 267 (101/2) 270 (105/8)1J

153286T

96 (212) 533 (21) 483 (19) 1346 (53)302 (117/8) 289 (113/8)

191 (71/2) 1283 (501/2) 121 (43/4) 102 (4)19 (3/4)

326TS 327 (127/8) 314 (123/8)245 184T 59 (129) 381 (15) 330 (13) 1143 (45) 305 (12) 302 (117/8) 349 (133/4) 346 (135/8) 114 (41/2) 1080 (421/2) 95 (33/4) 92 (35/8)252 215T 80 (177) 457 (18) 406 (16) 1321 (52) 319 (123/8) 308 (121/8) 359 (141/8) 355 (14) 152 (6) 1257 (491/2) 105 (41/8) 102 (4)258 286T 106 (234) 533 (21) 483 (19) 1473 (58) 330 (13) 312 (121/4) 375 (143/4) 355 (14) 1410 (551/2)

GP 2264

326T149 (328) 559 (22) 559 (22) 1626 (64)

330 (13) 312 (121/4)375 (143/4) 355 (14)

191 (71/2)1562 (611/2)

102 (4)2K365T 352 (137/8) 334 (131/8) 121 (43/4)

268 405TS 186 (409) 660 (26) 660 (26) 1727 (68) 378 (147/8) 365 (143/8) 378 (147/8) 365 (143/8) 241 (91/2) 1664 (651/2) 108 (41/4)25 (1)

280 449TS 218 (481) 2032 (80) 403 (157/8) 391 (153/8) 403 (157/8) 391 (153/8) 1969 (771/2)

Pump DimensionsSuction Discharge Pump

Size Size Weight X O C D D5 D6 D9 F CPPump mm (in) mm (in) kg (lb) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in)

1J2x2R-6 50 (2) 50 (2) 45 (100) 165 (61/2) 298 (113/4) 70 (23/4) 133 (51/4) 109 (43/8) 109 (43/8) 70 (31/4) 141 (5 9/16) 484 (191/16)2K2x2R-10 50 (2) 50 (2) 118 (260) 216 (81/2) 425 (163/4) 133 (51/4) 210 (81/4) 173 (613/16) 173 (613/16) 89 (31/2) 146 (53/4) 641 (251/4)2K3x3R-10 80 (3) 80 (3) 136 (300) 229 (9) 438 (17 1/4) 130 (51/8) 210 (81/4) 182 (73/16) 182 (73/16) 108 (41/4) 190 (71/2) 680 (27)2K4x3R-13 100 (4) 80 (3) 163 (360) 267 (101/2) 521 (201/2) 168 (65/8) 254 (10) 221 (811/16) 221 (811/16) 105 (41/8) 181 (71/8) 676 (265/8)2K6x4R-13 150 (6) 100 (4) 177 (390) 292 (111/2) 546 (211/2) 168 (65/8) 254 (10) 233 (93/16) 233 (93/16) 121 (43/4) 213 (83/8) 708 (277/8)

HD1 for the following pumps: 2x2R-10, 3X3R-10 *Shaft Extension 38 mm (11/2 in) Dia. 10 x 5 mm (3/8 x 3/16 in) **Includes spacer under pump, as necessary.HD2 for the following pumps: 4x3R-13, 6X4R-13 Keyway on 4 x 3R-13 and 6 x 4R-13 Pumps

D dimension is from shaft center line to bottom of casing feet. See HD and HG dimensions to determine shims under pump if required.


55

Recessed ImpellerParts Group 2

Pump Division


ITEM DESCRIPTION

100 CASING

103 IMPELLER

104 IMPELLER GASKET

105 SHAFT





109A SHIM


111 STUD - GLAND

111A HEXNUT - GLAND


113 PACKING OPT.

113L LIP SEAL


115 STUD - CASING



119 BEARING HOUSING

120 BEARING INBOARD











136 CAPSCREW - FOOT



153 MECHANICAL SEAL



190G GLAND GASKET


201 BEARING CARRIER







Abrasive packing arrangement


56

The KW941 Pump PowerMonitor monitors and displaysactual power to the pumpoffering simultaneous protec-tion from underload andoverload operating conditions.

The KW941 helps to eliminatecostly downtime and expensivepump repairs caused by:• Dry running• Pump overloads• Cavitation• Blocked lines• Closed suction or

discharge valves• Excessive wear or rubbing

By sensing power and not justamperes, linear measurementsare given which help to elimi-nate unwanted nuisance trips.

Broad Application Range• Works on all pumps having

steady (non-pulsating) loads:centrifugal; gear; turbine;ANSI; API; paper stock;sealed; mag drive; can motor;self-priming

Easy Installation• Simple wiring procedure• Easily installed on existing

pump installations

Easy Setup and Calibration• Settings controlled from front

panel push buttons; no internaladjustments, dip switches orpotentiometers

• Large digital display for easyviewing and accurate settings

• One step calibration can beperformed without operatingpump. No need to run pumpat off-operating conditions tocalibrate power monitor

• Settings can be viewed oradjusted during normal pumpoperation

Premium Features forReliable Protection• Push buttons display horse-

power or kilowatts; automaticconversion when switchingdisplays

• Adjustable low power andhigh power set points protectpump from underload andoverload operation. Alarmscan be tripped or pumpsshut down before damage occurs

• Adjustable trip delay timersfilter out nuisance tripscaused by temporary powerfluctuations

• Adjustable start up delaytimer is particularly usefulin unloading applications

• Optional 4 to 20 milliampanalog output. Facilitatesremote displays, operatorinterface and output to PLCor DCS

• Two form C relay outputsfor low and high power trips.Outputs can be used to shutdown pump or trip alarms

• Automatic, manual andremote reset options forversatile operation

The KW941 PowerMonitor is easy to installon new or existing pumpinstallations. All connec-tions and controls arelocated at motor starterelectrical enclosure asshown above. Costlyinstrumentation wiringto the pump is eliminated.

Flowserve DurcoKW941 Pump

Power Monitor™

Pump Division

Power Monitor


57

Specifications

Display/Control Module

Full Scale RangeAdjustable 0.7 to 112 kW (1 to 150 hp). To 447 kW (600 hp) using current transformer (not included).

Display3 digit, 15 mm (0.6 in) high,7 segment, red LED digitaldisplay. Red LED indicators fordisplay mode, trip delays andtrip points.

EnclosurePolycarbonate, NEMA 4X/IP66with see-through cover. Four #8(4 mm) mounting holes.Enclosure can be drilled, sawedor punched on bottom or backfor wiring access.

Power110 VAC (220/240 VAC optional),50/60 Hz @ 0.125 amperes.Power is obtained from acontrol voltage transformer (notsupplied) connected betweentwo phases of the three-phasemotor power source.

Operating Temperature-44° to 70°C (-40° to 158°F)

Adjustable Trip Set Points• High Power: When power

exceeds the trip point setting,the trip delay is activated.When the trip delay has timedout, an alarm contact relaywill trip.

At low loads, motoramperes do not changemuch with smallchanges in pump loads.Small signal changescan cause false tripsor allow equipment tooperate below thedesired minimumoperating point.

At low loads, power islinear. Small changesin pump operating loadsprovide greater signalchanges. The KW941is more sensitive topump load changes andoffers easier setup,more reliable equipmentprotection and no falsetrips.

Flowserve DurcoKW941 Pump

Power Monitor™

Pump Division

Power Monitor

Power

Curre

nt

0% Motor Load 100%

Typical Low Flow/

No Flow PumpProtection Zone

Pow

er/C

urre

nt

• Low Power: When power fallsbelow the trip point setting,the trip delay is activated.When the trip delay has timedout, an alarm contact relaywill trip.

Adjustable Trip Delay TimersDelay timers eliminate tripsduring motor starting and falsetrips due to temporary powerfluctuations. Individual timersare adjustable from 0-to-999seconds:• Start-up Delay• Lower Power Trip Delay• High Power Trip Delay

Alarm Relay ContactsForm C relays for low powerand high power trip points.• Ratings

– 5 amps @ 125 VAC– 3 amps @ 277 VAC– 5 amps @ 30 VDC

Analog Output (Optional)4 to 20 milliamp outputproportional to full scalesetting. Maximum loop loadresistance – 600 ohms.

Trip Reset Options• Automatic: Automatic trip

reset may be selected on thedisplay/control module.

• Manual: Trips may be resetmanually on the display/control module.

• Remote: Trips may be resetremotely using a momentaryexternal mechanical or solidstate switch.


58

Selection• Sizing with less than maximum

synchronous speed rpmwhere practical

• Impeller trim from 95 to 60%of maximum with 75% optimal

• Operate from 85% to 110%of BEP

• NPSHa 20% or 1.5 m (5 ft)over NPSHr, whichever isgreater

• Consider variable speedtechnology for multipleoperating point conditions

Balance• Impeller balanced to 20 gm-

mm/kg (0.011 oz in/lb), after trimming. Two-planespin balance when outsidediameter to width ratio < 6and single plane when ≥ 6

• Coupling balanced to AGMA 8(AGMA 10 over 56 kW[75 hp]). Coupling to beelastomer type for soft start

• Offset pump and motorshaft/coupling hub keyways180° and cut keys to one-halfunfilled keyway length

Installation• Level pump/base/motor –

free of soft foot conditions• Provide 10 diameters of

straight pipe to suction inlet.Flow conditioning technologymay be an option

• Rigid baseplate design– reinforced stilt– grout installed

baseplate• Grout with low shrink cement;

epoxy grout preferred• Special cleaning and primer

to bond base with epoxy-typegrout

• Piping design to assureminimal stress (fastenersinstalled without force)

Alignment • Use laser or reverse dial

indicator technology.Recommended tolerances to: parallel0.05 mm (0.002 in) FIM;angular 0.0005 mm/mm(0.0005 in/in) FIM

• Align before and afterpipe-pump bolt-up

• Specify bolting to fitwithout force to connectpump and pipe

• Consider C-flange motoradapter for pumpingtemperatures > 93°C (200°F) or hot align afterstart-up

• Consider C-flangeadapters when minimumand maximum pumpingtemperatures are morethan > 56°C (100˚F) apart

• For pumping tempera-tures > 177°C (350°F)consider centerlinemounted casing andinclude C-flange adapter> 260°C (500°F)

Good PumpPractice

Pump Division

Good Pump Practice

Extending MTBPMby Reducing InternalStress and Vibrationin the Process Pump System PackageFlowserve is recognizedworldwide as the premiername in ANSI pumpperformance. Its tech-nologically advancedproduct enhancementshave extended MTBPMto new levels.

By implementing GoodPump Practice, peakoperating performanceand economy can befurther improved.

These seven generalprinciples apply tosealed and seallesspumps.


59

Operation• Develop suitable start-up

procedures and checklists• Avoid rapid closing of process

valves (no water hammer)• Use a power monitor for

minimum/maximum flowprotection

• Add minimum flow bypassas required

• Consider soft start forfrequent on-off duty

• Consider variable speedtechnology for inherent softstart, reduced RPM andincreased efficiency

• Do not run dry. Check forsubmergence conditions,particularly in batch operation.Select pump/seal typeaccordingly

• Operate spare pump everythree (3) months

Design/Specifications• Use solid shafts –

Index of Deflection:(I = L3D4) Group 1 < 75Group 2

3500 rpm < 401800 rpm < 65

Group 3 ≤ 25• Use cartridge seals designed

to reduce fretting corrosionand for proper setting 100%of time

• Maintain critical impellersetting tolerances to hold lowthrust load and seal chamberpressure

• Specify state of the art sealchamber designs that offeranti-rotation features toreduce abrasion, vaporization,heat and cavitation at themechanical seal

• Pump manufacturerto be responsible for “TotalEngineered Seal System”(TESS)

• Rigid, cast iron motor footconstruction with ≥ 182T(S)frame sizes

Note: Some items aremore critical for longerterm installations andbecome economicalwhen life cycle costconsiderations areapplied. For furtherinformation, contact aFlowserve salesperson.

Pump Division

Good Pump Practice

Preventive Maintenance• Change lubricant at

recommendedintervals

• Protect lubricant fromcontamination

• Use sealed or “vaporblock” power endprotection andsynthetic lubricant toreduce relubricationintervals

• Maintain mechanicalseal flush environ-ment. Eliminate theneed for flush withalternate seal and sealchamber designs whenpossible

• Maintain power endand mechanical sealsin a “clean room”

• Predictive maintenance,vibration monitoringand lubricant analysisare still good practice


To find your local Flowserve representative please use the Sales Support Locator System

found at www.flowserve.com

Or call toll free: 1 800 728 PUMP

Your local Flowserve representative:

Pump Division

USA and CanadaFlowserve CorporationPump Division5215 North O’Connor Blvd.Suite 2300Irving, Texas 75039-5421 USATelephone: 1 972 443 6500Telefax: 1 972 443 6800

Europe, Middle East, AfricaWorthington S.P.A.Flowserve CorporationVia Rossini 90/9220033 Desio (Milan), ItalyTelephone: 39 0362 6121Telefax: 39 0362 303396

Latin America and CaribbeanFlowserve CorporationPump Division6840 Wynnwood LaneHouston, Texas 77008 USATelephone: 1 713 803 4434Telefax: 1 713 803 4497

Asia Pacific Flowserve Pte. Ltd.Pump Division 200 Pandan Loop #06-03/04Pantech 21Singapore 128388Telephone: 65 6775 3003Telefax: 65 6779 4607

Flowserve... Supporting Our CustomersWith The World’s LeadingPump Brands

Jeumont-Schneider™Jeumont-Schneider™

Printed in U.S.A.February 2004

© Flowserve Corporation


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Technical Information and Design Characteristic-mark III