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DRAFT IS 10804: PART 3 Page 1 of 64 As on 08/10/2012

PROPOSEDDRAFT INDIAN STANDARD

RECOMMENDED PUMPING SYSTEM FOR WATERSUPPLY PURPOSES

PART – 3 DOMESTIC PUMPSETS(Third Revision of IS 10804)


Sl.No. Description PageNo.

1. Scope2. References3. Recommended Pumping System4. Characteristic’s of clear cold water5. Terminology5.1. Borewell and Borewell size5.2. Openwell5.3. Sump5.4. Static water depth5.5. Draw down5.6. Draw down level5.7. Submergence6. Yield Testing

7. Estimation of flow rate andCalculation of total head

7.1. Estimation of Flow Rate

7.1.1. Calculation of Total Head for ElectricMonobloc pumpsets

7.1.2. Calculation of Total Head for ElectricOpenwell pumpsets

7.1.3. Calculation of Total Head for ElectricBorewell pumpsets

7.1.4. Calculation of Total Head for Electriccentrifugal Jet Monobloc pumpsets

8. Selection of Pumping System

8.1. Selection of Domestic Pumpsets forSump or Openwell Application

8.1.1. Selection of Domestic Pumpsets ofElectric Monobloc pumpsets

8.1.2. Selection of Domestic Pumpsets forBorewell Application


8.1.3.Selection of Domestic Pumpsets ofElectric centrifugal Jet Monoblocpumpsets

8.1.3.1. Electric Borewell pumpsets8.1.3.2. Electric Jet pumpsets8.2. Installation details for pumpsets

8.2.1. Installation of Domestic Pumpsets forSump or Openwell Application

8.2.2. Installation of Domestic Pumpsets ofElectric Monobloc pumpsets

8.2.2.1. Installation of Domestic Pumpsets forBorewell Application

8.2.2.2.Installation of Domestic Pumpsets ofElectric centrifugal Jet Monoblocpumpsets

9. Power supply Single or three phase9.1. Protection devices – for Motor9.1.1. Starters9.1.2. Dry Running9.1.3. Single Phase preventers9.1.4. Earthing9.1.5. Cable Selection9.1.6. Cable JointAnnexureA List of Standards

AnnexureB

Example for selection of submersiblepumpset for Domestic purpose waterrequirement

AnnexureC

Example for selection of ElectricMonobloc pumpset for Domesticpurpose water requirement

AnnexureD

Example for selection of CentrifugalJet Monobloc pumpset for Domesticpurpose water requirement


AnnexureE List of tables

AnnexureF List of figures


1 SCOPE

This standard covers therecommended pumpingsystem for Domestic(Single,Multi story,Apartments andresidential townships)application pumpsetsconsisting of variousmatching and energyefficient components likecentrifugal pump(monoset or coupledpump set being installedon surface above waterlevel and submerged inwater), prime mover(electric motor or dieselengine or spark ignitionengine), suction anddelivery pipes, valve (footvalve or reflux valve or

bore valve), Tapers /Expanders and necessarypipe fittings.

2 REFERENCESThe standards listed inAnnex A containprovisions which, throughreference in this text,constitute provisions ofthis standard. At the timeof publication, the editionsindicated were valid. Allstandards are subject torevision, and parties toagreements based on thisstandard are encouragedto investigate thepossibility of applying themost recent editions ofthe standards listed inAnnex A.


3 RECOMMENDEDPUMPING SYSTEM

Different components ofpumping system shallconform to the followingIndian Standards besidesmatching with the other

components (seeFig.1,Fig 2). Selection ofeach of the componentsshall be based on thecriteria given againstthem, so that entirepumping system operatesefficiently

.Sl

No. Component IndianStandards Criteria

1.

Pump:The pump shallbe selected insuch a way thatit shall operateat nearmaximum pumpefficiency duringpeak demandperiod in theranges ofdischarge andhead. It shouldalso be capableto discharge insummer season.

Electric monoset IS 9079:2002Engine monoset IS 11501:1986Electric or enginecoupled

IS 6595 (Part1):2002

Electric monoset- Regenerativepump

IS 8472 :1998

Electric monoset– Jet pump

IS 12225 :1997

Submersiblepump sets IS 8034 : 2002

Open wellsubmersible pumpsets

IS 14220 ;1994

2.

Prime mover: The prime moverrating shall beequal to or morethan the powerSpark ignition

Electric motor IS 7538:1996IS 14582 :1998

Spark ignitionengine IS 7347:1974


Compressionignition engine IS 11170:1985

engineconsumption inthe entireoperating range

3. Piping system

IS 1239 (Part1) : 2004IS 4984 : 1995IS 4985 : 2000IS 12231 :1987IS 1239 (Part2) : 2011IS 10124 (Part8) : 2009IS 13593 :1992

The sizes ofpipes shall beselected in sucha way that thefriction head (hf)shall not exceed10 percent totalequivalent lengthof piping systemup to deliverypoint. The datagiven in Fig. andTables shall beused todetermineapproximatesizes of pipes. Ifthe deliverydistance is morethan 3 m, thenlarger pipe sizesshall be used toreduce thefriction losses.

4. Tapers/Expanders IS 14263:1995

The size of theeccentric tapersfor suction sideand size of theconcentric


tapers for thedelivery sideshall be selectedsuitable to therecommendedpipe sizes basedon the pumpflow rate Q atthe duty point.

5. Bore valve andreflex valve

IS 10805 :1986

Size of valveshall be equal orgreater than thesize of dischargepipe.

6. Pipe fittings

IS 1239 (part2) :2011IS 10124 (part3) : 2009IS 13593 :1992

The size ofbends and otherfittings shall bematching withthe size of the GIpipes, HDPEpipes or RPVCpipes to be usedin piping system.

7. Code of Practice IS

This Standardlays downgeneralguidelines forselection,installation,operation andmaintenance ofBorewellsubmersible


pumpsetscovered in IS8034.

8. Code of Practice IS 14536 :1998

This Standardlays downgeneralguidelines forselection,installation,operation andmaintenance ofBorewellsubmersiblepumpsetscovered in IS8034.

Notes:

Due to design considerations and constraints, pumpsuction and delivery size may not always match with therecommended pipe size. In such cases, suitableexpanders shall be used between pump and pipes to fitthe recommended pipe size.

4.0 CHARARECTERISTICS OF CLEAR, COLDWATER

Clear, cold water shall mean water having thecharacteristics specified below:

a. Turbidity(silica scale) : 50 ppm ,

Max


b. Chlorides : 500ppm,Max

c. Total solids : 3000ppm,Max

d. pH : 6.5 to 8.5e. Temperature : 33˚C,Max

f. Specificgravity : 1.004,

Max

g.Hardness(drinkingwater)

:300,Max

Note –If the characteristics ofwater differ from thesespecifications, the pumpconstructional details shallbe agreed between themanufacturer / supplier andthe user. In such cases, thecharacteristics shall bespecified in the order.

5.0 TERMINOLOGY

Prime Mover

Motor

Pump


Centrifugal pump

Regenerative pump

Jet pump

Pumpset

Sump

5.1 Borewell and Borewell sizeBorewell is a very deep narrow hole in the ground madein order to get water.

The borewell should be straight in relation to thepumpset, the borewell should be tested throughout itsdepth with a pattern with overall length and diameterequal to the maximum dimensions of the pumpset.

5.2 OpenwellIt covers ordinary open wells of varying dimension dugor sunk from the ground surface into water bearingstratum to extract water. These are broadly masonrywells and dug-cum bore wells. All such schemes are ofprivate nature belonging to individual cultivator.

5.3 Static water depthIt is the depth of water level below the ground level whenthe pump is not in operation.

5.4 Draw-down


It is the elevation difference between the depth of staticwater level and the consistent standing water level in thetube well or rock well during pumping operation.

5.5 Draw-down levelIt is depth of consistent standing water level below theground level in the tube well or rock well during pumpingoperation.

5.6 SubmergenceIt is the minimum height of water level after draw-downabove the suction casing, while running.

6.0 Yield TestingIt is recommended to perform yield testing for theborewell.Yield testing is the process to estimate the yieldof a borewell. This will assist in selection of a suitablecapacity pump (lower capacity pumpset) without over-pumping of the borewell. This test shows the balancebetween amount of water that can be pumped out of theborewell and the amount of water that recharges backinto the borewell from the surrounding groundwatersource. This test requires continuous pumping of theborewell for an extended period of time. During thepumping period, measurements are made to find out therate at which the water is being pumped out of theborewell and the depth to which the water level islowered in the well as the result of pumping known asDraw down Level. Refer Fig 13 for the borewell yieldtesting using test pumpset.

7.0 Estimation of Flow rate and Calculation of TotalHead.


7.1 Estimation of Flow rate

The estimation of flow rate shall be calculated the waterrequirement per day.

7.2 Calculation of Total Head

7.2.1 The Flow rate (Discharge rate) Q of water requiredshall be determined as per the guidelines given in IS9694 (Part 1). In case, yield is less, operating hours ofthe pumpset shall be increased to match the yield

7.2.2 PIPE FRICTIONAL HEAD LOSSES

Pipe Frictional losses are pressure head losses whichoccur during the water flow in any kind of conduit pipe.The friction losses in the piping system depends on thefollowing factors

a)Pipe inner diameterb)Material and inner surface roughness of Pipec) Length of pipe lined)Number of bends, elbows, valves and other pipe

fittings

Based on the flow rate of water required and material ofpipe, delivery pipe size shall be selected from Table 4, 5,6 and 7 to limit the maximum friction losses in pipes tobelow 10% of the pipe length.

In case, water is to be delivered to a long distance,friction losses in delivery pipe may have to be limited tomuch lower value (may be as low as 0.5 to 1 %depending on the length) to limit the Total Head and thusto limit the prime mover rating and thereby Energy Bill.


Thus in such cases larger size delivery pipes is to beselected depending on Cost Economics.

7.2.3 The length of piping required shall be determinedfrom the actual delivery pipe length from pumpset todelivery point and length of straight pipe givingequivalent friction head loss in pipe fittings, valves as perTable 11. Refer Fig12.

7.2.4 The friction losses in the pipes shall be computedfor the pipe length worked out as per 7.2.3, based onFlow rate (Q) and pipe size (Refer Tables 8, 9 and 10 orfigure 2 and 3)

7.2.5 For losses in velocity head Refer Tables 8, 9 and10

7.2.6 Total head (H) shall be calculated by adding statichead (hst) (draw down level elevation height uptodelivery point), friction losses in pipes and pipe fittings(hfs) and discharge velocity head.

H=hst+hfs+Discharge velocity head

8.0 SELECTION OF PUMPING SYSTEM

8.1 The pumpset and pumping system shall be selectedwith due reference to Tables 1, 2 and 3 and / or the fieldrequirement. The type of pumpset shall be openwell orborewell submersible pumpset as may be required.

8.2 Select suitable pipe material and pipe size forcolumn pipe, delivery pipe as explained in 7.2


8.3 Calculate total head as explained in 7.2

8.4 Choose the type of pumpset to be used. i.e. aborewell pump or openwell pump according to the welltype.

8.5 Select suitable pump based on calculated Head andFlow rate. Pump shall be selected such that, theoperating point lies close to the best efficiency point(BEP) on the pump characteristics curve as computed in7.2.

8.6 Rating of the Prime mover

Prime mover rating is to be selected such that it does notget overloaded in the entire operating head range with aminimum of 20% margin.

9.0 Power supply

9.1 Preferred voltage and frequency

9.1.1 Preferred Voltage

The preferred rated voltage shall be 415 V for threephase motors and 240 V for single phase motors (See IS12360)

9.1.2 Preferred Frequency

The preferred rated frequency shall be the standardfrequency of 50Hz

9.2 Voltage and Frequency Variation


9.2.1

The motors shall be capable of delivering rated outputwith:

a. The terminal voltage differing from this rated valueby not morethan ± 6 percent.

b. The rated frequency differing from its rated value bynot morethan ±3 percent : and

c. Combination of (a) and (b)

9.2.2

The motors shall be capable of delivering rated outputwith:

a. The terminal voltage differing from this rated valueby not morethan + 6 percent - 15 percent.

b. The rated frequency differing from its rated value bynot morethan ±3 percent : and

c. Combination of (a) and (b)

Cl 9.2.1 applicable for Category ‘A’ submersible pumpset

Cl 9.2.2 applicable for Category ‘B’ submersible pumpset

10.0 Protection Devices – for motor

10.1 Starters

The submersible motor should be operated as permanufacturer recommendation of starting devices likeDOL, Star Delta or Auto transformer Starter. The Starter


should have indicting instruments like Ammeter andVoltmeter of suitable range, over load indicators for eachphase. The overload protection should be preset as nearas possible to the operating current value as and neverhigher than the rated motor current. The enclosureshould be water tight, dust proof construction and itshould be earth protected. The control switch gears andwires should have a sufficient rating to carry theoperating current. The insulation material shouldwithstand at extreme temperature limits. The motorshould be connected in accordance with wiring diagramsshown inside the controller. The Starter should bemounted vertically.

10.2 Dry running

A special device with a relay and electrodes to beprovided to protect the pumpset from dry running itshould be used in all cases where the water level varieswidely.Location of the electrode shall be at minimum of 1 metrefrom the pump Discharge Outlet Level.

10.3 Single phase preventers

Preventer must be installed in all three phase pumpsetpanel to protect the winding from burn outs due to theabsence of any one of the phase out of three phasesupply. The phase failure occurs due to blown fuse orbreaking conductor or any kind of discontinuity in theelectric power transmission. It is a condition of heavyimbalance and motor draws more current.


10.4 Earthing

Motor shall have suitable provision for earthing tofacilitate earthing of motor as per IS 3043:1987 at thetime of installation. In case GI pipes are used for thepurpose of earthing the motor, the earthing connectionmay be made to supporting pipe clamp.

10.5 Cable Selection:

The correct cable size to be selected as per table xx andTable xx

From the borewell entry point to panel board a highersize cable to be selected to avoid excess voltage drop.The extra cable should not be placed in coil form.

10.6 Cable Joint

Joining submersible pumpset cable is part of everysubmersible pumpset installation because everysubmersible pump installation has at least one jointbetween the motor leads and the pump cable.

Although it some-times is necessary to joint two lengthsof pump cable together in very deep-set applications, itis always better to use a single length of pump cablefrom the surface to the motor lead. A good joint iswatertight, has good electrical conductivity and ismechanically strong.


Typical cable joints as per Fig x.

Table 1 Permissible Ranges of Volume Rates of Flowin l/s Through Galvanized Steel Pipes to Limit

Friction Losses to 10 Percent of the Pipe Length(IS 1239, C = 140)

NominalOutside

Dia

Pipe GradeLight Medium Heavy

Rate of Flow Rate of Flow Rate of Flowmm l/s l/s l/s2540506580

Table 2 Permissible Ranges of Volume Rates of Flowin l/s Through RPVC Pipes to Limit Friction Losses

to 10 Percent of the Pipe Length(IS 4985, C = 150)

NominalOutside

Dia

Pipe GradeClass 2 (0.25

MPa)Class 3 (0.4

MPa)Class 4 (0.6

MPa)Rate of Flow Rate of Flow Rate of Flow

mm l/s l/s l/s254050


6580

Table 3 Permissible Ranges of Volume Rates of Flowin l/s through HDPE Pipes to Limit Friction Losses to

10 Percent of the Pipe Length(IS 4984, C = 150)

NominalOutside

Dia

Pipe GradeClass 2 (0.25

MPa)Class 3 (0.4

MPa)Class 4 (0.6

MPa)Rate of Flow Rate of Flow Rate of Flow

mm l/s l/s l/s2540506580

Table 4 Permissible Ranges of Volume Rates ofFlow in l/s Through RPVC Pipes to Limit

Friction Losses to 10 Percent of the Pipe Length(IS 12231, C = 150)

NominalOutside

Dia

Pipe GradeType 1 W (0.4 MPa) Type 2 W (0.6 MPa)

Rate of Flow Rate of Flowmm l/s l/s2540


506580

Table 5 Frictional losses in metres per 100 metre pipelength and velocity head in metresfor New G.I.Pipe of medium series

NominalPipe Sizein mm

25 40 50 65 80

Inside DiammDischargeLPS F.L. V.H. F.L. V.H. F.L. V.H. F.L. V.H. F.L. V.H.

2 1.87 0.043 3.95 0.094 6.73 0.17

Table 6 Frictional losses in metres per 100 metre pipe length and velocity head inmetres for RPVC Pipe of Class 3

Nominal PipeSize in mm 25 40 50 65 80


Inside Dia mmDischarge

LPS F.L. V.H. F.L. V.H. F.L. V.H. F.L. V.H. F.L. V.H. F.L. V.H. F.L. V.H. F.L. V.H.

1 2.68 0.052 9.66 0.183 3.77 0.124 5.70 0.18

Table 7 Frictional losses in metres per 100 metre pipe lengthand velocity head in metres for HDPE Pipe of

Class PN 4NominalPipe Size

in mm25 40 50 65 80

Inside Diamm

DischargeLPS F.L. V.H. F.L. V.H. F.L. V.H. F.L. V.H. F.L. V.H.

1234

TABLE 8 LENGTH OF STRAIGHT PIPE IN METRES GIVING EQUIVALENT HEAD LOSSIN PIPE FITTINGS, VALVES, Etc

SIZEOF

PIPEIN

mm

STANDARDELBOW

MEDIUMELBOW

LONGRADIUSELBOW

45DegreeELBOW

TEE

SLUICE/ GATEVALVEFULLOPEN

GLOBEVALVEFULLOPEN

ANGLEVALVEOPEN

FOOTVALVE

ORREFLUXVALVE

25 0.82 0.70 0.52 0.40 1.77 0.18 8.24 4.57 2.04


40 1.31 1.10 0.85 0.61 2.74 0.29 13.4 6.71 3.0550 1.67 1.40 1.07 0.76 3.35 0.37 17.4 8.54 3.9665 1.98 1.65 1.28 0.92 4.26 0.42 20.1 10.0 5.1880 2.47 2.00 1.55 1.15 5.18 0.52 25.9 12.8 6.10

TABLE 9 DIMENSIONS OF UNPLASTICIZED PVC PIPES(IS: 12231 - 1987)

All dimensions in millimeters.NominalOutside

Diameter(

NominalSize)

MeanOutside

Diameter

Wall ThicknessType 1 W (0.4

MPa)Type 2 W (0.6

MPa)AverageValues

IndividualValues

AverageValues

IndividualValues

min max max min max max min max(1) (2) (3) (4) (5) (6) (7) (8) (9)25405065


80NOTE 1 –The table is based on metric series of pipedimensions given in ISO 161/1 in respect of pipedimensions.NOTE 2 –The wall thickness of pipes is based on a safeworking stress of 8.6 Mpa at 27°C and the working pressuregets reduced at sustained higher temperature. Occasionalrise in temperature as in summer season with concurrentcorresponding reduction in temperature during night has nodeleterious effect on the life and working pressure of thepipes considering the total life of pipes.


Table 10 Dimensions of Unplasticised PVC Pipes(IS: 4985 : 2000)

All dimensions in millimetersNominalOutside

Diameter(Nominal

Size)

MeanOutside

Diameter

OutsideDiameterAt AnyPoint

Wall Thickness

Class 1 0.25MPa

Class 2 0.40MPa

Class 3 0.60MPa

Class 4 0.80MPa

Class 5 1.00MPa

Class 6 1.25MPa

min max min max AngMax min max Ang

Max min max AngMax min max Ang

Max min max AngMax min max Ang

Max min max

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) (19) (20) (21) (22) (23)20 20.0 20.3 19.5 20.5 1.5 1.1 1.5 1.8 1.4 1.825 25.0 25.3 24.5 25.5 1.6 1.2 1.6 1.8 1.4 1.8 2.1 1.7 2.132 32.0 32.3 31.5 32.5 1.9 1.5 1.9 2.2 1.8 2.2 2.7 2.2 2.740 40.0 40.3 39.5 40.5 1.8 1.4 1.8 2.2 1.8 2.2 2.7 2.2 2.7 3.3 2.8 3.350 50.0 50.3 49.4 50.6 2.1 1.7 2.1 2.8 2.3 2.8 3.3 2.8 3.3 4.0 3.4 4.063 63.0 63.3 62.2 63.8 1.9 1.5 1.9 2.7 2.2 2.7 3.3 2.8 3.3 4.1 3.5 4.1 5.0 4.3 5.075 75.0 75.3 74.1 75.9 2.2 1.8 2.2 3.1 2.6 3.1 4.0 3.4 4.0 4.9 4.2 4.9 5.9 5.1 5.9


NOTES

1. The table is based on metric series of pipe dimensions given in ISO 161/1 in respect of pipe dimensions and ISO DIS 4422.2. The wall thickness of pipes is based on a safe working stress of 8.6 MPa at 270 C and the working pressure gets reduced atsustained higher temperatures occasional rise intemperature as in summer season with concurrent corresponding reduction in temperature during nights has no deleterious effecton the life working pressure of the pipesConsidering the total life of pipes.For class 1,2 and 3 of all sizes, this requirement need not to be satisfied as the ratio of minimum wall thickness to nominal outsidediameter does not exceed 0.035 in these cases.

Table 11 Wall Thickness of Pipes for Material Grade PE 63(IS 4984 : 1995)

All dimensions in millimeters.Nominal Wall Thickness Of Pipes for Pressure Ratings of


Dia PN 2.5 PN 4 PN 6 PN 8 PN 10 PN 12.5 PN 16DN min max min max min max min max min max min max min max(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15)20 - - - - - - - - 2.3 2.8 2.8 3.3 3.4 4.025 - - - - - - 2.3 2.8 2.8 3.3 3.4 4.0 4.2 4.932 - - - - 2.3 2.8 3.0 3.5 3.6 4.2 4.4 5.1 5.4 6.240 - - 2.0 2.4 2.8 3.3 3.7 4.3 4.5 5.2 5.5 6.3 6.7 7.650 - - 2.4 2.9 3.5 4.1 4.6 5.3 5.6 6.4 6.8 7.7 8.4 9.563 2.0 2.4 3.0 3.5 4.4 5.1 5.8 6.6 7.0 7.9 8.6 9.7 10.5 11.875 2.3 2.8 3.6 4.2 5.3 6.1 6.9 7.8 8.4 9.5 10.2 11.5 12.5 14.090 2.8 3.3 4.3 5.0 6.3 7.2 8.2 9.3 10.0 11.2 12.2 13.7 15.0 16.7


All dimensions in millimeters.Nominal

DiaWall Thickness of Pipes for Pressure Ratings of

PN 2.5 PN 4 PN 6 PN 8 PN 10 PN 12.5 PN 16DN Min Max Min Max Min Max Min Max Min Max Min Max Min Max(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15)20 - - - - - - - - - - 2.3 2.8 2.8 3.325 - - - - - - - - 2.3 2.8 2.8 3.3 3.5 4.1


32 - - - - - - 2.4 2.9 3.0 3.5 3.6 4.2 4.5 5.240 - - - - 2.3 2.8 3.0 3.5 3.7 4.3 4.5 5.2 5.6 6.450 - - 2.3 2.8 2.9 3.4 3.8 4.4 4.6 5.3 5.6 6.4 6.9 7.863 - - 2.5 3.0 3.6 4.2 4.7 5.4 5.8 6.6 7.0 7.9 8.7 9.875 - - 2.9 3.4 4.3 5.0 5.6 6.4 6.9 7.8 8.4 9.5 10.4 11.790 2.3 2.8 3.5 4.1 5.1 5.9 6.7 7.6 8.2 9.3 10.0 11.2 12.5 14.0


All dimensions in millimeters.Nominal

DiaWall Thickness Of Pipes For Pressure Ratings of

PN 6 PN 8 PN 10 PN 12.5 PN 16DN Min Max Min Max Min Max Min Max Min Max(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11)20 - - - - - - - - 2.3 2.825 - - - - - - 2.3 2.8 2.9 3.432 - - - - 2.4 2.9 2.9 3.4 3.7 4.340 - - 2.4 2.9 3.0 3.5 3.7 4.3 4.6 5.350 2.3 2.8 3.0 3.5 3.7 4.3 4.6 5.3 5.7 6.563 2.9 3.4 3.8 4.4 4.7 5.4 5.7 6.5 7.1 8.175 3.5 4.1 4.5 5.2 5.6 6.4 6.8 7.7 8.5 9.6


90 4.1 4.8 5.4 6.2 6.7 7.6 8.2 9.3 10.2 11.5



Notes

1. For overall efficiency of the pumpset multiply pump efficiency by corresponding motorefficiency factor as given in the Table x of motor ratings.2. Efficiency of the pumpsets having declared duty points beyond the efficiency lines oneither side may be declared by the manufacturer and applicable tolerance applied.3. Where the point lies in between the efficiency lines, the higher value is taken as minimumefficiency.

Fig. x Minimum efficiency in percent for monoset pump ( 2 pole , 50Hz,for volume rate of flow


above 16 Litres per second) (Ref. IS 9079 Fig 3)



Notes

1. For overall efficiency of the pumpset multiply pump efficiency by corresponding motorefficiency factor as given in the Table x of motor ratings.

2. Efficiency of the pumpsets having declared duty points beyond the efficiency lines oneither side may be declared by the manufacturer and applicable tolerance applied.

3. Where the point lies in between the efficiency lines, the higher value is taken as minimumefficiency.

Fig. x Minimum efficiency in percent for monoset pump ( 2 pole , 50Hz,for volume rate of flowUp to including 16 Litres per second) (Ref. IS 9079 Fig 4)




Notes




Fig. x Minimum efficiency in percent for monoset pump ( 4 pole , 50Hz,for volume rate of flowabove 16 Litres per second) (Ref. IS 9079 Fig 5)



Notes




Fig. x Minimum efficiency in percent for monoset pump ( 4 pole , 50Hz,for volume rate of flowUp to including 16 Litres per second) (Ref. IS 9079 Fig 6)


NOTES

1. The efficiency in figure represents three or more stages:a) For two stage pump, multiply efficiency given by a factor 0.98.b) For single stage pump, multiply efficiency given by a factor 0.97.

2. The motor efficiency factor of motor ratings not given in the Table 19,20,21,22 and 23shall be as declared by the manufacturer. The motor efficiency factor of motors used withpumpsets suitable for bore sizes more than 200 mm shall be as declared by themanufacturer but it shall be not less than the motor efficiency factor of motors of samerating for 200 mm bore size.

3. For overall efficiency of the pumpset, multiply pump efficiency by corresponding motor


efficiency factor as given in the Table 19,20,21,22 and 234. The efficiency chart includes non-return valve losses.5. Efficiency of the pumpsets having declared duty points beyond the efficiency lines on

either side may be declared by the manufacturer and applicable tolerance applied. Wherethe point lies in between the efficiency lines, the higher value is taken as minimumefficiency.

Fig. x MINIMUM EFFICIENCY IN PERCENT FOR 2-POLE BOREWELL SUBMERSIBLEPUMPSET (Ref. IS 8034: 2002 including amendment No. 3)


NOTES

1. The efficiency in figure represents three or more stages:a) For two stage pump, multiply efficiency given by a factor 0.98.b) For single stage pump, multiply efficiency given by a factor 0.97.

2. The motor efficiency factor of motor ratings not given in the Table 19,20,21,22 and 23shall be as declared by the manufacturer. The motor efficiency factor of motors used withpumpsets suitable for bore sizes more than 200 mm shall be as declared by themanufacturer but it shall be not less than the motor efficiency factor of motors of samerating for 200 mm bore size.


3. For overall efficiency of the pumpset, multiply pump efficiency by corresponding motorefficiency factor as given in the Table 19,20,21,22 and 23

4. The efficiency chart includes non-return valve losses.5. Efficiency of the pumpsets having declared duty points beyond the efficiency lines on


Fig. x MINIMUM EFFICIENCY IN PERCENT FOR 2-POLE BOREWELL SUBMERSIBLEPUMPSET (Ref. IS 8034: 2002 including amendment No. 3)


Notes:


1. The efficiency in figure represents three or more stages:a) For two stage pump, multiply efficiency given by a factor 0.98.

b) For single stage pump, multiply efficiency given by a factor 0.97.2. The motor efficiency factor of motor ratings not given in the Table 24 shall be as declared

by the manufacturer.3. For overall efficiency of the pumpset, multiply pump efficiency by corresponding motor

efficiency factor as given in the Table 244. The efficiency chart includes non-return valve losses.5. Efficiency of the pumpsets having declared duty points beyond the efficiency lines on


Fig. x Minimum efficiency in percent for openwell submersible pumpsets of 2 pole,50Hz (Ref.IS 14220:1994)



Fig x - Typical field installation of bore well submersiblepumpset

FIG x - Typical field installation of open well submersible


pumpset



After starting the test pumpset, the water level in theborewell which is at the "SWL" in the beginning will go to"DDL" level after 30 minutes of time (approx.) and stabilizethere. At that time, if the control valve is closed and"PGR"Pressure Gauge Reading (in m) is noted down, it willshow the balance of shut-off head of the test pumpset afterdeducting the DDL (in m).

Pressure Gauge Reading (m) = Shut off Head of the testpump (m) at the Ground level - Draw Down Level (m)

PGR = SOH – DDL

Draw Down Level (m) = Shut off Head of the test pump (m)- Pressure Gauge reading (m) at the ground level

Now, the control valve is fully opened and the water flow ischanneled into a 90° V-Notch plate and the "head over thenotch" is noted down. From the formula given in the IS11346 Cl.3.2.1.2, volume rate of flow is calculated.

FIG x - Typical submersible pumpset yield testing

Table 14CABLE SELECTION FOR SINGLE PHASE MOTOR MAXIMUMLENGTH OF


COPPER CABLE (IS: 694 : 1990) For Supply Voltage Condition withVariation of ± 3% - 50Hz.

MOTOR RATING CABLE SIZE SQUARE MILLIMETRESVOLTS kW HP 1.5 2.5 4 6 10 16 25 35 50 70 95

220/240

VOLT

50Hz

0.37 0.5 120 200 320 480 810 1260 1900 2590 3580 4770 5920

MA

XIM

UM

LEN

GTH

INM

ETR

ES0.55 0.75 80 130 250 320 550 850 1290 1760 2430 3230 4000

0.75 1.0 60 100 170 250 430 670 1010 1380 1910 2550 31601.10 1.5 40 70 120 180 300 470 710 980 1360 1850 23201.50 2.0 30 60 90 130 230 360 550 760 1060 1440 18202.20 3.0 40 60 100 170 280 430 600 820 1080 1310

Table 15 CABLE SELECTION FOR THREE PHASE MOTOR MAXIMUM LENGTH OFCOPPER CABLE (IS: 694 : 1990) For Supply Voltage Condition with Variation of ± 3%

- 50HzMOTOR RATING CABLE SIZE SQUARE MILLIMETRES

VOLTS kW HP 1.5 2.5 4 6 10 16 25 35 50 70 95 120

380/415

VOLT

50Hz

0.75 1.0 380 630 1020 1525 2595 4032 6111 8366

MA

XIM

UM

LEN

GTH

INM

ETR

ES

1.10 1.5 300 500 810 1210 2060 3200 4850 6640 92201.50 2.0 220 370 590 880 1500 2340 3560 4890 6830 92302.20 3.0 150 250 400 600 1030 1600 2440 3350 4680 6340 79903.00 4.0 110 190 310 460 790 1230 1880 2590 3630 4930 62303.70 5.0 90 150 240 370 630 980 1490 2050 2870 3900 49204.00 5.5 80 140 230 340 590 920 1390 1910 2670 3600 45204.50 6.0 70 130 220 320 550 860 1310 1790 2510 3390 42605.50 7.5 60 110 170 260 440 690 1060 1450 2030 2750 3460


7.50 10.0 50 80 130 200 340 530 810 1110 1560 2120 26809.30 12.5 60 110 160 280 440 670 920 1310 1780 225011.0 15.0 50 90 130 230 360 550 750 1060 1440 182013.0 17.5 80 110 200 310 480 650 920 1250 158015.0 20.0 70 100 170 270 410 570 800 1080 137018.5 25.0 80 140 210 330 450 630 860 109022.0 30.0 70 120 180 280 380 540 740 93026.0 35.0 100 150 230 310 440 610 770 87030.0 40.0 90 130 210 280 400 540 680 78037.0 50.0 110 170 230 320 440 550 70045.0 60.0 140 190 260 360 460 56056.0 75.0 160 220 290 380 34075.0 100.0 160 220 280 340


Fig x Cable joining


Table 16 - Motor Efficiency factor for 2-Pole, 240 Volt,Single Phase, Capacitor Start & Run (CSR), Capacitor

Start & Capacitor Run (CSCR), Water Filled SubmersibleMotors for bore size minimum 100mm and maximum

OD of Motor 98mmMotorRating

Motor Efficiencyfactor

NOTES:

a. For Motors of otherratings below 0.37 kWthe performance valuesshall be declared by themanufacturer

b. Motor efficiency factorsshall be applied for Fig. xand Fig. x to arrive theminimum overall efficiencyof the pumpset.

c. For arriving minimumoverall efficiency of thepumpset, multiply pumpefficiency by correspondingmotor efficiency factor.

(kW)(1) (2)

0.37 40.00.55 42.00.75 46.01.1 49.01.5 52.0

2.2 56.0

Table 17 - Motor Efficiency factor for 2-Pole, 240 Volt,Single Phase Capacitor Start & Run (CSR), Capacitor

Start & Capacitor Run (CSCR), Oil Filled / orencapsulated oil filled, Submersible Motors for bore

size minimum 100mm & maximum OD of Motor 98mm.


MotorRating

MotorEfficiency

factor

NOTES ;a. For Motors of other ratings

below 0.37 kW theperformance values shall bedeclared by the manufacturer

b. Motor efficiency factors shallbe applied for Fig. x and Fig.x to arrive the minimumoverall efficiency of thepumpset.

c. For arriving minimum overallefficiency of the pumpset,multiply pump efficiency bycorresponding motorefficiency factor.

(kW)(1) (6)

0.37 43.00.55 45.00.75 50.01.1 53.01.5 56.0

2.2 62.0

Table 18 - Motor Efficiency factor for 2-Pole, 415 Volt, 50Hz, Three Phase, Water Filled Submersible Motors for

openwell Submersible pumpset.

MotorRating

MotorEfficiency

factor

NOTES ;a. Motor efficiency factor for

Motors ratings less than 1.1kW and exceeding 15 kWrating shall be as declared bythe manufacturer.

b. However for motors above 15kW rating, the declared valueof efficiency shall not belesser than 15 kW value.

c. Motor efficiency factors shallbe applied for Fig. x to arrivethe minimum overallefficiency of the pumpset.

(kW)(1) (2)1.1 571.5 662.2 693.0 693.7 704.5 725.5 757.5 769.3 7711.0 7813.0 7915.0 80


d. For arriving minimum overallefficiency of the pumpset,multiply pump efficiency bycorresponding motorefficiency factor.

Table 19 - Motor Efficiency factor for monoset pumps (2pole 50 Hz)

MotorRating


NOTES:

SinglePhase

ThreePhase

(kW)0.37 54 --0.75 63 --1.1 68 731.5 70 742.2 -- 753.7 -- 795.5 -- 807.5 -- 81

Table 20 - Motor Efficiency factor for (4 pole 50 Hz)

MotorRating


NOTES:

SinglePhase

ThreePhase


(kW)0.37 56 --0.75 66 --1.1 70 761.5 72 772.2 -- 77.53.7 -- 805.5 -- 827.5 -- 83

ANNEXURE “A”LIST OF REFERENCE STANDARDS

Sl.No. IS No. Description1. 694 : 1990 Polyvinyl chloride insulated unsheathed


and sheathed cables/cords with rigidand flexible conductor for rated voltagesup to and including 450/750v

2. 1239 (Part1):2004

Mild steel tubes, tubulars and otherwrought steel fittings : Part 1 Mild steeltubes (fifth revision)

3. 1239 (Part2):2011

Mild steel tubes, tubulars and otherwrought steels fittings. Part 2 Mild steeltubulars and other wrought steel pipefittings (third revision)

4. 2800 (Part1) :1991

Code of practice for construction andtesting of tubewells / BorewellsPart – 1 Construction

5. 2800 (Part2) :1979

Code of practice for construction andtesting of tubewells / BorewellsPart – 2 Testing

6. 4984 : 1995

Specification for high densitypolyethylene pipes for potable watersupplies; sewage and industrial effluents(third revision)

7. 4985 : 2000Specification for unplasticised PVCpipes for potable water supplies (secondrevision)

8. 6595(Part1):2002

Horizontal centrifugal pumps for clear,cold water: Part 1Agricultural and rural water supplypurposes (second revision)

9. 7347:1974

Performance of small size spark ignitionengines foragricultural sprayers and similarapplications


10. 8034 : 2002 Submersible pumpsets (first revision)

11. 9079:2002 Monoset pumps for clear, cold water foragricultural purposes (first revision)

12. 9283 : 1995 Motors for submersible pumpsets

13. 9694 (Part1) : 1987

Code of practice for the selection,installation, operation and maintenanceof horizontal centrifugal pumps foragricultural applications : Part 1selection ( first revision)

14. 10124 (Part8) : 1988

Specification for fabricated PVC fittingsfor potable water supplies : Part 8Specific requirements for 90 degreebends ( first revision)

15. 11346 :2002 Testing set up for agricultural pumps

16. 11170:1985

Performance requirements for constantspeed compression ignition (diesel)engines for agricultural purposes (up to20 kW)

17. 11501:1986Engine monoset pumps for clear, cold,fresh water foragricultural purposes

18. 12231 :1987

Specification for Unplasticised PVCPipes for use in Suction and Deliverylines of Agricultural pumpsets

19. 13593 :1992

UPVC pipe fittings for use with UPVCpipes in the suction and delivery lines ofagricultural pumps specification

20. 14220 :1994 Openwell submersible pumpsets


ANNEXURE”B”

EXAMPLE FOR SELECTION OF SUBMERSIBLEPUMPSET FOR DOMESTIC WATER SUPPLY

REQUIREMENT

ANNEXURE”C”

EXAMPLE FOR SELECTION OF ELECTRIC MONOBLOCPUMPSET FOR DOMESTIC WATER SUPPLY

REQUIREMENT

ANNEXURE”D”

EXAMPLE FOR SELECTION OF ELECTRICCENTRIFUGAL JET MONOBLOC PUMPSET FOR

DOMESTIC WATER SUPPLY REQUIREMENT

21. 14536 :1998

This Standard lays down generalguidelines for selection, installation,operation and maintenance of Borewellsubmersible pumpsets covered in IS8034.


LIST OF TABLESSl.No. DESCRIPTION

TableNo.TableNo.TableNo.

TableNo.

Permissible Ranges of Volume Rates of Flow inl/s Through Galvanized Steel Pipes to LimitFriction Losses to 10 Percent of the Pipe Length

TableNo.

Permissible Ranges of Volume Rates of Flow inl/s Through RPVC Pipes to Limit Friction Lossesto 10 Percent of the Pipe Length

TableNo.

Permissible Ranges of Volume Rates of Flow inl/s through HDPE Pipes to Limit Friction Lossesto 10 Percent of the Pipe Length

TableNo.

Permissible Ranges of Volume Rates of Flow inl/s Through RPVC Pipes to LimitFriction Losses to 10 Percent of the Pipe Length

TableNo.

Table 8 Frictional losses in metres per 100metre pipe length and velocity head in metresfor New G.I.Pipe of medium series

TableNo.

Frictional losses in metres per 100 metre pipelength and velocity head in metres for RPVCPipe of Class 3

TableNo.

Frictional losses in metres per 100 metre pipelength and velocity head in metres for HDPEPipe of Class PN 4

TableNo.

Length of straight pipe in metres givingequivalent head loss in pipe fittings, valves, etc

Table Dimensions of unplasticised PVC pipes


No.TableNo. Dimensions of Unplasticised PVC Pipes

TableNo.

Wall Thickness of Pipes for Material Grade PE63

TableNo.


TableNo.


TableNo.

Cable selection for single phase motormaximum length of copper cable

TableNo.

Cable selection for three phase motor maximumlength of copper cable

TableNo.

Motor Efficiency factor for 2-Pole, 415 Volt,Three Phase, Water Filled Submersible Motorsfor bore size minimum 100mm and maximumOD of Motor 98 mm.

TableNo.

Motor Efficiency factor for 2-Pole, 415 Volt,Three Phase, Water Filled Submersible Motorsfor bore size minimum 150mm and maximumOD of Motor 146mm

TableNo.

Motor Efficiency factor for 2-Pole, 415 Volt,Three Phase, Water Filled Submersible Motorsfor bore size minimum 200mm and maximumOD of Motor 196mm

TableNo.

Motor Efficiency factor for 2-Pole, 240 Volt,Single Phase, Capacitor Start & Run (CSR),Capacitor Start & Capacitor Run (CSCR), WaterFilled Submersible Motors for bore sizeminimum 100mm and maximum OD of Motor98mm

TableNo.

Motor Efficiency factor for 2-Pole, 240 Volt,Single Phase Capacitor Start & Run (CSR),


Capacitor Start & Capacitor Run (CSCR), OilFilled / or encapsulated oil filled, SubmersibleMotors for bore size minimum 100mm &maximum OD of Motor 98mm.

TableNo.

Motor Efficiency factor for 2-Pole, 415 Volt, 50Hz, Three Phase, Water Filled SubmersibleMotors for openwell Submersible pumpset.

TableNo.

Motor Efficiency factor for openwell submersiblepumpsets of 4 pole,50Hz (As per IS14220:1994)

LIST OF FIGURESSl.No. DESCRIPTION

FigureNo. Friction head loss selection chart for GI pipes

FigureNo.

Friction head loss selection chart for rigid PVCpipes

FigureNo.

Friction head loss selection chart for concretepipes

FigureNo. Cable joining

FigureNo.

Minimum efficiency in percent for 2-polesubmersible pumpset (Ref. IS 8034: 2002including amendment No. 3)

FigureNo.

Minimum efficiency in percent for 2-polesubmersible pumpset (Ref. IS 8034: 2002including amendment No. 3)

FigureNo.

Minimum efficiency in percent for openwellsubmersible pumpsets of 2 pole,50Hz (Ref. IS


14220:1994)

FigureNo.

Minimum efficiency in percent for openwellsubmersible pumpsets of 4 pole,50Hz (Ref. IS14220:1994)

FigureNo.

Typical field installation of bore well submersiblepumpset

FigureNo.

Typical field installation of open wellsubmersible pumpset

FigureNo.

Borewell System curve, Pump Performancecurve and Operating point

FigureNo.

Pump selection and erection diagram for theexample in Annexure “B”

FigureNo. Typical submersible pumpset yield testing

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