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Inside Front Cover
Proper Pump Selecton
Careful selection and installation of the correct Dragon Centrifugal Pump will result in a unit that will provide long-
lasting and dependable service. Selecting a pump with excessive pressure capability means extra horsepower
expense. Centrifugal pumps have much different horsepower input characteristics than positive displacement
pumps. However, if the pressure requirements on the discharge side are indefinite, or if for some other reason the
discharge pressure is much lower than expected, the pump will handle considerably more fluid and require more
horsepower thanoriginally selected to drive the pump. A valve or flow restriction will then be required to increase
the discharge pressure and reduce the horsepower needed to drive the pump.
To assure proper pump selection, the following information is required:
1. Suction conditions:
A. Size of suction piping
B. Length of suction line
C. Flooded suction (positive)
D. Suction lift (negative)
2. Total discharge head required.
3. Rate of flow desired.
4. Type of driver desired and RPM (electric motor or engine)
5. Specific gravity or weight of fluid to be pumped.
6. Temperature of fluid.
7. Any information available as to the corrosiveness or abrasiveness of the fluid
to be handled.
Once this information is obtained it is used to calculate:
GPM = Rate of flow desired HD. FT. = Total dynamic head SP. GR. = Specific gravity of fluid
PUMP SIZE AND HORSEPOWER SELECTION FROM PERFORMANCE CURVES
Using the desired GPM and head feet, find the pump size and speed by looking at the performance curves.
Mark the desired operating point on the performance curve. This operating point may appear on more than one
curve because of different speeds and impeller sizes available. Use the variable speed curves for gasoline or
diesel engines. If an electric motor is to be used, remember the lower the RPM, the longer the service-life of the
pump. Now, decide on the curve that best suits the application of desired GPM, head feet, and RPM. This curve
will designate the proper pump size. Refer to the desired operating point and take an impeller size reading.
1. Select the impeller size:
A. For speeds of 1750 RPM and below read to the nearest i/i inch above the operating point.
B. For speeds above 1750 RPM, read to the nearest i/g inch above the operating point.
2. Calculate the required horsepower:
A. Read horsepower from curve at operating point on impeller (selected as accurately
as possible) then:
Brake Horsepower Required=Curve HPxSp.Gr. of Fluid
B. Alternate Method: Read Efficiency at the operating point.
Brake Horsepower = (GPM) (Hd. Ft.) (Sp. Gc)
(3960) (Efficiency)3. Calculate your systems NPSH available in feet:
NPSH available = P^ - Friction loss + Elevation - Vapor Pressure P^ = Absolute pressure above liquid in feet
of fluid Absolute Pressure = Gauge Pressure + Atmospheric Pressure Elevation = Distance from Surf ace of
liquid on suction side to center line of pump in feet (above +: Below -). Vapor Pressure = Vapor Pressure fluid
at pumping temperature in feet of fluid.
4. Read NPSH required from curve.
A. NPSH available must be equal to or greater than NPSH required or the pump will cavitate.
B. If NPSH required, is greater than NPSH available, consider:
(1) Using larger suction pipe to lower losses
(2) Raising the fluid level
(3) Oversizing the pump
(4) Lowering pump speed and increasing impeller diameter to meet the same operating point.
Start-Up and OperationBEARING LUBRICATION:
All Dragon pump bearings are prelubricated when assembled. We use Mystic JT-6 HT #2 when assembling
and recommend that the same or a compatible NLGI #2 high temp be used. It is recommended that 5-10
shots of grease are injected into both the inboard and outboard bearing lubrication fittings at least monthly.
Pumps assembled with the optional oil lubrication should be checked regularly with the dipstick and refilled
with a good grade of non-detergent SAE 30 motor oil.
STUFFING BOX PACKING:
Most Dragon 250 pumps come standard with a mechanical seal and a back-up graphite packing in case of
seal failure. The back-up packing should be left loose until needed, after which the packing bland bolts should
be tightened slowly until the stuffing box drips 6-10 drips per minute. The packing should be greased daily.
PRIMING:
Vent air from suction line and pump housing to allow them
to fill completely with fluid while priming. For pumps with a
flooded suction, slightly open the discharge valve and fully
open the suction valve. This will allow the pump and suc-
tion line to fill completely.
START-UP:
Start the pump with the discharge valve about one third
open. After the discharge pressure stabilizes, gradually
open the discharge valve to the required position.
Dragon’s Mechanical SealOur Dragon Mechanical Seal manufactured in the USA.
It has a Tungsten Carbide rotating assembly, a 316
stainless steel cage assembly machined from solid stock
and a Silicone Carbide stationary for greater wear life.
It is completely interchangeable with most or the popular
pumps on the market.
PUMP PERFORMANCE COMPUTATIONS:
To compute pump performance of variations from
pump curves use the following formulas: (Approximate)
CHANGE OF SPEED (RPM)
V2= V1 (R2/R1)
H2= H1 (R2/R1)2
P2 = P1 (R2/R1)3
CHANGE OF IMPELLER DIAMETER
V2= V1 (D2/D1)
H2= H1 (D2/D1)2
P2 = P1 (D2/D1)3
CHANGE OF SPEED AND IMPELLER DIAMETER
V2= V1 (R2/R1) (D2/D1)
H2= H1 (R2/R1)2 (D2/D1)2
P2 = P1 (R2/R1)3 (D2/D1)3
V1= Old Volume
V2= New Volume
H1= Old Head Feet
H2= New Head Feet
P1 = Old Horsepower
P2= New Horsepower
R1= Old Speed (RPM)
R2= New Speed (RPM)
D1=Old Impeller Diameter
D2=New Impeller Diameter
PUMP A B C D F G H K L M N P R S T W XSIZE
1 x 11/2 R&L 13 17/16 23/8 41/4 35/16 261/4 31/8 47/8 71/2 7 41/4 7/8 1 11/2 (4)-11/16 6 12
11/2 x 2 R&L 13 17/16 23/8 5 35/16 263/4 31/2 45/8 71/16 7 41/4 7/8 11/2 2 (4)-11/16 6 12
2 x 3 R&L 13 17/16 23/8 51/2 35/16 27 33/4 51/2 73/4 7 41/4 7/8 2 3 (4)-11/16 6 12
3 x 4 R 13 17/16 23/8 65/8 35/16 281/2 41/4 5 8 7 41/4 7/8 3 4 (4)-11/16 6 123/4
Premium 118 Centrifugal PumpConcentric housing design is available in right hand or left hand operation. It
reduces turbulence within the pump to minimize cavitation, shaft deflection,
and excessive wear. The semi open impeller is designed to handle water or
heavy slurries with equal efficiency. Replaceable wear plates protects the
pedestal from wear and corrosion caused by fluids being pump, therefore,
extending the life of the pump. The beefed-up frame design is stronger and
more rigid in all wear areas.It gives a larger work area to facilitate packing
the pump, which cuts repacking time. Heavy duty bearings are well protect-
ed by spring type oil seals and water slinger designed to keep fluid and dirt
out of the bearing cavity. Eccentric locks are used so the shaft can be easily
removed without special tools. The oil bath lubrication system is designed
with a larger oil reservoir, that provides free circulation of oil and better heat
dissipation for longer bearing life.
PEDESTAL, HOUSING & INSTALLATION DEMINSIONS
FLANGE SIZES
PUMP
SIZE
PUMPTYPE(shaftdia.)
SIZE DRILLING SIZE DRILLING
DISCHARGE PIPE SUCTION PIPE
1 x 11/2 11/8 1 4 Holes 5/8 Dia. 31/8 B.C. 11/8 4 Holes 5/8 Dia. 37/8 B.C.
11/2 x 2 11/8 11/2 4 Holes 5/8 Dia. 37/8 B.C. 2 4 Holes 3/4 Dia.. 43/4 B.C.
2 x 3 11/8 2 4 Holes 3/4 Dia. 43/4 B.C. 3 4 Holes 3/4 Dia. 6 B.C.
3 x 4 11/8 2 4 Holes 3/4 Dia. 6 B.C. 4 8 Holes 3/4 Dia. 71/2 B.C.
Premium 118 Centrifugal Pump
PUMP SIZESPUMP SIZE MAX CAST IRON
& ROTATION IMPELLER MODEL NUMBERS
1X11⁄2 L 81⁄2” 091-1100
11⁄2 X2 R 81⁄2” 091-1105
2X3 R 81⁄2” 091-1110
3X4 R 81⁄2” 091-1115
Item
No. Description Qty Req Dragon Mission Halco Harrisburg
1 118 Pedestal 1 820-0120 E3768 H3768 1-118-PED
2 118 Bearing Cap 2 820-0140 3773A H3771A 2-118-BC
3 118 Bearing Cap Gasket 2 811-8025 10399-21-1 H10399-2-1 3-118-BCG
4 118 Bearing Assm. 2 820-0100 3944-1 H3944-1 4-118-BA
5 118 Oil & Grease Seal 2 811-6020 3943-12 H3943-12 5-118-OGS
7 1 18 316-SS Shaft 1 820-0160 3769-4A H3769-4A 7C-118-316SS
118 416-SS Shaft 1 820-0180 3769-21A H3769-21A 7-118-416SS
1 18 Ceramic Coated
416-SS Shaft 1 820-0200 17361-21G-7A H17361-21G-7A 7A-118-416SSC
8 118 Graphite Packing 1 811-7520 8264-11S-OBA H8264-11S-OBA 8A-118-PMSG
118 King Packing 1 811-7525 8474-1 1S-1 A H8474-11S-1A 8C-118-PMSK
118 Teflon Packing 1 811-7530 8264-flS-7A H8264-11S-7A 8D-118-PMST
9 118 Packing Gland 1 820-0240 8204-1 3A H8204-13A 9-118-GPA
10 118 Gland Adjusting Bolt Assm. 2 820-0260 A3701A H3701A 10-118-GABA
11 118 Wear Plate Cast Iron 1 820-0280 3762-1 H3762-1 11-118-WPC
12 118-1X1. 5 LH Cast Iron Impeller 1 811-0220 4571 -XX-1 H4571-XX-1 1218142ICRXXX
118-1.5X2 RH Cast Iron Impeller 1 811-0240 4571-XX-1 H4571-XX-1 1218142ICRXXX
11 8-2X3 RH Cast Iron Impeller 1 811-0260 4575-XX-1 H4575-XX-1 121823ICRXXX
11 8-3X4 RH Cast Iron Impeller 1 811-0280 5710-XX-1 H5710-XX-1 N/A
13 118 Housing Gasket 1 811-8020 10399-19-1 H10399-19-1 13A-118-HGF
14 118-1X1.5 LH Housing Assm. C.I. 1 811-2120 N/A N/A N/A
118-1.5X2 RH C.I Housing Assm. 1 811-2140 G4576-1A H4576-1A 14118142CHR
118-2X3 RH C.I Housing Assm. 1 811-2160 F4672-1A H4672-1A 141823CHR
1 18-3X4 RH C.I Housing Assm. 1 811-2180 F5162-1A H5162-1A N/A
15 118 Housing Stud 8 400-8001 11907-82/3932-1 H1 1907-82/3932-1 15-118-HSN
15a 118 Housing Stud Nut 8 405-2001 N/A N/A N/A
17 118 Impeller Key 1 820-0320 4372-1-4 H4372-1-4 17-118-IK
18 118 Coupling Key 1 820-0360 4372-2-21 H4372-2-21 17A-118-CK
19 118 Shaft Lock Nut Assm. 1 820-0380 6209-7-4 H6209-7-4 18-118-LNA
21 118 Water Slinger Ring 1 811-9020 C3770A H3770A 22-118-SRW
Note: XX or XXX Indicates Impeller Size
Premium 118 Centrifugal Pump
118 Pump Parts List Chart
Premium 118 Series Charts
Premium 118 Series Charts
Premium 118 Series Charts
Premium 118 Series Charts
Premium 118 Series Charts
Premium 118 Series Charts
Premium 118 Series Charts
Premium 178 Centrifugal PumpThe concentric housing design reduces turbulence within the pump to mini-
mize cavitation, shaft deflection, and excessive wear. The semi open
impeller is designed to handle water or heavy slurries with equal efficiency.
Replaceable wear plates protects the pedestal from wear and corrosion
caused by fluids being pump, therefore, extending the life of the pump. The
beefed-up frame design is stronger and more rigid in all wear areas.It gives
a larger work area to facilitate packing the pump, which cuts repacking time.
Heavy duty bearings are well protected by spring type oil seals and water
slinger designed to keep fluid and dirt out of the bearing cavity. Eccentric
locks are used so the shaft can be easily removed without special tools.
Premium 178 Series Parts
Premium 178 Series Parts
Item
No. Description Qty Req Dragon Mission Halco Harrjsburg
1 178 Pedestal 1 825-0125 L3785 H3785 1-178-PED
2 178 Bearing Cap 2 825-0140 3790 H3790 2-178-BC
3 178 Bearing Cap Gasket 2 811-8045 10399-23-1 H10399-23-1 3-178-BCG
4 1 78 Bearing Assm. 2 825-0100 3944-3 H3944-3 4A-178-BA8
5 178 Oil & Grease Seal 2 811-6040 3943-14 H3943-14 5-178-OGS
7 178 316-SS Shaft F/ 2x3-5x6 1 825-0160 3786-4A H3786-4A 7A-178-316SS
178 416-SS Shaft F/ 2x3-5x6 1 825-0180 4932-21 A H4932-21A 7A-178-416SS
178 Ceramic Coated F/ 2x3-5X6 825-0200 17238-21G-7A H17238-21G-7A 7B-178-416SSC
1 78 316-SS Shaft F/ 6X8 825-0220 1492.8-4A H14928-4A 7F-178A-316SS
178 416-SS Shaft F/ 6X8 825-0240 14928-21A HI 4928-21 A 7C-178A-416SS
178 Ceramic Coated F/ 6X8 825-0260 17343-210-1 A H17343-21-1A 7D-178A-416SSC
8 178 Graphite Packing 811-7560 8264-17W-OBA H8264-17W-OBA 8A-178-PMSG
178 King Packing 811-7565 8474-1 7 W-7A H8474-17W-7A 8C-178-PMSK
178 Teflon Packing 811-7570 8264-17W-7A H8264-17W-7A 8D-178-PMST
9 178 Packing Gland 1 825-0280 7406-13A H7406-13A 9-178-GPA
10 178 Gland Adjusting Bolt Assm. 2 830-0200 A3701A H3701A 10-178-GABA
11 178 Wear Plate Ductile Iron 1 825-0320 3779-30 H3779-30 11B-178-WPD
12 178-2X3 Ductile RH Impeller 1 811-0520 4610-XX-30 H4610-XX-30 1 27823 IRXXX
178-3X4 Ductile RH Impeller 811-0540 4605-XX-30 H4605-XX-30 127834IRXXX
178-4X5 Ductile RH Impeller 811-0560 4705-XX-30 H4705-XX-30 127845IRXXX
178-5X6 Ductile RH Impeller 811-0580 4710-XX-30 H4710-XX-30 127856IRXXX
178-6X8 Ductile RH Impeller 811-0620 5142-XX-30 H5142-XX-30 127868IRXXX
13 178 Housing Gasket 2 811-8040 10399-20-1 HI 0399-20-1 13A-178-HGF
14/15 178-2X3 Housing Assm. RH Duct 811-2320 G4676-30A H4676-30A 147823DHA
178-3X4 Housing Assm. RH Duct 811-2340 F4644-30A H4644-30A 147834DHA
178-4X5 Housing Assm. RH Duct 811-2360 F4732-30A H4732-30A 147845DHA
178-5X6 Housing Assm. RH Duct 811-2380 F4742-30A H4742-30A 147856DHA
178-6X8 Housing Assm. RH Duct 811-2400 F5144-30A H5144-30A 147868DHA
22 178 Water Slinger Ring 811-9040 C3787A HC3787A 20-178-SRW
Note: XX or XXX Indicates Impeller Size
• The concentric housing is 35% thicker for extra strength and extended service life and reduces the radial load of the bearings.
• The impeller is designed to reduce turbulence, eliminate recirculation, lower radial and thrust load, and provide a smooth flow of fluids.
• The larger diameter shaft gives heavy-duty performance with minimum shaft deflection.• An anti-loosening impeller lock bolt to eliminate pump damage in case of reversed polarity
motor hook-up.• Brass labyrinth seals are used on both the inboard and outboard bearings to protect from
contamination and for longer seal life.• Heavy-duty SKF outboard bearing assembly consists of a pair of angular contact bearings
with high thrust load rating and zero end play.• The heavy-duty SKF inboard bearing is a double row ball-bearing with high radial load rating
to compensate for the larger size impeller and heavy-duty applications.• The optional oil bath lubrication system is designed with a larger oil reservoir, which provides
free circulation of oil and better heat dissipation for longer bearing life.• The mechanical seal has a tungsten carbide rotating assembly plus a 316 stainless steel
cage assembly with a silicone carbide stationary for greater seal life.• All components of the Dragon Premium 250 centrifugal pump are 100% interchangeable
with other brands such as Mission, Halco, etc.• Every Dragon pump or pump package is fully tested before shipment.
The Dragon Premium 250 Centrifugal Pumpuses the latest design with many enhancements:
PEDESTAL, HOUSING & INSTALLATION DEMINSIONS
SIZE 2x3x13 3x4x13 4x5x14 5x6x11 5x6x14 6x8x11 6x8x14DIMENSION
A 83/4 93/8 103/4 121/16 121/16 131/4 131/4
B 33/4 41/4 5 53/4 53/4 63/4 63/4
C 33 335/8 35 363/8 363/8 371/2 371/2
D 7 63/4 61/8 6 6 83/8 83/8
E 101/4 101/4 11 11 11 14 14
F 177/8 177/8 19 177/8 21 20 23
G 31/2 31/2 31/2 31/2 31/2 31/2 31/2
H 157/16 157/16 157/16 157/16 157/16 157/16 157/16
J 25/16 25/16 25/16 25/16 25/16 25/16 25/16
K 195/8 195/8 195/8 195/8 195/8 195/8 195/8
M 9 9 9 9 9 9 9
N 9 9 9 9 9 9 9
Max Impellar Dia. 13 13 14 11 14 11 14
Max Impellar Dia. 6 6 7 8 10 8 10
Suction Size 3 4 5 6 6 8 8
Discharge Size 2 3 4 5 5 6 6
Weight- Lbs. 430 440 490 520 550 610 630
FLANGE I.D. O.D. B.C. HOLES SIZE HOLES THICKNESSSIZE
2 2 6 43/4 4 3/4 5/8
3 3 71/2 6 4 3/4 3/4
4 4 9 71/2 8 3/4 15/16
5 5 10 81/2 8 7/8 15/16
6 6 11 91/2 8 7/8 1
8 8 71/2 113/4 8 7/8 11/8
Premium 250 Centrifugal Pump
Premium 250 Centrifugal Pump
PUMP SIZESPUMP SIZE MODEL NUMBERS MATERIAL ROTATION MAX IMPELLER
2X3X13 091-1180 DUCTILE IRON RH 13”
3X4X13 091-1185 DUCTILE IRON RH 13”
4X5X14 091-1190 DUCTILE IRON RH 14”
5X6X11 091-1195 DUCTILE IRON RH 11”
5X6X14 091-1200 DUCTILE IRON RH 14”
6X8X11 091-1205 DUCTILE IRON RH 11”
6X8X14 091-1210 DUCTILE IRON RH 14”
Item Description Quanity Dragon # Mission NOV
1 250 Pedestal 1 830-0120 20618-12-1 644302499
2 250 Shaft 1 830-0140 20612-02-33 646490557
3 250 Outboard Bearing Housing 1 830-0160 20624-01-01 644308504
4 250 Packing Gland 1 830-0180 20622A 641103338
5 250 Inboard Bearing (Double Row) 1 830-0100 20615-1 648408102
7 250 Inboard Bearing Cover 1 830-0220 20626A 641103361
8 250 Outboard Bearing 2 830-0110 20616-1 648408201S
9 250 Outboard Bearing Cover 1 830-0240 20617A 641103296
10 250 Mechanical Seal {Tungsten-Silicone} 1 811-6090 22451 648414357
250 Graphite Packing 1 811-7600 661007005
11 250 Packing Gland Bolt Assy 2 830-0200 3701A 601102494
12 250 Shaft Sleeve Stainless Steel 1 830-0260 20943-21A 641102182
250 Shaft Sleeve Ceramic Coated 1 830-0280 20613-21G-7A 641102181
13 250 Mechanical Seal Stuffing Box 1 830-0320 22223-01-30A 641116157
250 Packing Stuffing Box 1 830-0300 20614-01-30 643365042
14 2503X2X13 Impeller 1 811-0720 19204-XX-30
2504X3X13 Impeller 1 811-0760 19206-XX-30
2505X4X14 Impeller 1 811-0800 19224-XX-30
250 6 X 5 X 11 and 8 X 6 X 11 Impeller 1 811-0820 19121-XX-30
2506X5X14 Impeller 1 811-0840 19121-XX-30
2508X6X14 Impeller 1 811-0880 19116-XX-30
15 2503X2X13 Housing Assy 1 811-2520 19203-01-30A 641101753
2504X3X13 Housing Assy 1 811-2540 19205-01-30A 641101902
2505X4X14 Housing Assy 1 811-2560 19222-01-30A 641102058
2506X5X11 Housing Assy 1 811-2580 19122-01-30A 641101456
250 6X5X14 Housing Assy 1 811-2600 19123-01-30A 641101605
250 8X6X11 Housing Assy 1 811-2620 19763-01-30A 641102157
250 8X6X14 Housing Assy 1 811-2640 19117-01-30A 641101308
16a 250 Housing Nut 12 405-4001 3932-61 648402014
16b 250 Housing Stud 12 400-8021 3862-76 648401115
17 250 Housing Gasket 1 811-8060 10399-46-1 648403012
18 250 Impeller 0-Ring 1 811-7020 19110-72 648405082
19 250 Shaft Sleeve 0-Ring 1 811-7025 23444-01-72 648415156
20 250 Inboard Brass Labyrinth Seal (Standard) 1 811-6075
250 Inboard Bearing Shaft Oil Sea! 1 811-6065 20619-01 648408300
21 250 Inboard Exclusion Seal 1 811-6070 20620-01 648408409
22 250 Outboard Brass Labyrinth Seal (Standard) 1 811-6080
250 Outboard Bearing Shaft Oil Seal 1 811-6060 20619-02 648408359
23 250 Outboard Bearing Cover Gasket 1 811-8065 20625 648408706
24 250 Outboard Bearing Housing 0-Ring 1 811-7030 7496-253 648402295
25 250 Outboard Bearing Cover 0-Ring 1 811-7035 7496-26 72200017
26 250 Bearing Lock Nut 1 830-0380 6123-4A 648402055
27 250 Bearing Lock Washer 1 830-0400 6124-4A 648402105
28 250 Impeller Lock Bolt 1 830-0402 7415648
30 Grease Zert
31 Stuffing Box Bolt 1 400-2003 3861-117 648401016
32 250 Pedestal Breather/Vent 1 830-0405 8267-01 601473689
33 250 4 X 3 X 13 Housing Wear Pad 1 811-2545
250 5 X 4 X 14 Housing Wear Pad 1 811-2565
250 6 X 5 X 11 Housing Wear Pad 1 811-2585
250 6 X 5 X 14 Housing Wear Pad 1 811-2605
250 8 X 6 X 11 Housing Wear Pad 1 811-2625
250 8 X 6 X 14 Housing Wear Pad 1 811-2645
34 250 Shaft Key (3/8) 1 4372-5-21 601212392
250 Pump Parts List Chart
Premium 250 Series Charts
Premium 250 Series Charts
Premium 250 Series Charts
Premium 250 Series Charts
Premium 250 Series Charts
Premium 250 Series Charts
Premium 250 Series Charts
Premium 250 Series Charts
Premium 250 Series Charts
Premium 250 Series Charts
Premium 250 Series Charts
• Series 250 6 x 5 x 11 Electric Unit
• 10 1/2” Impellar
• Casing Wear Pad
• Mechanical Seal Tungsten Carbide
• SKF Premium Bearings
• Labyrith Bearing Oil Seals
• 50HP @ 1750 RPM Motor
• 230/460-3-60 Explosion Proof
• Motor Starter 50HP Sprecher
SCHUH 3 Phase Motor Control
• Woods Couplings
Pump Skid Packages
Electric motor pump packages with electric motors from 1-200hp in direct
couple or belt-drive configurations.
Dragon 3X2 Oil Lubed Pump with a Kubota DG972-E2 Natural Gas EngineMurphy Cascade Control Panel and a Heavy Duty Galvanized Skid.
Diesel Engine pump packages with Deutz, John Deere, and Detroit
engines from 50-250hp.
• Series 250 8 x 6 x 14
• 11” Impeller
• Replaceable Casing Wear Pad
• Mechanical Seal Tungsten Carbide
• SKF Premium Bearings
• Labyrinth Bearing Seals
• 173HP Deutz Diesel Engine
Model TCD914L6
• Twin Disc PTO
• Deutz Instrumentation
Panel
• Dodge Couplings
Pump Skid And Trailer Packages
Diesel Unit shown with
optional Manifold
Vacuum Prime Assist Pumps with
Diesel Engines from 75-300hp.
• 6X6 Vacuum prime assist pump
• 75 HP Deutz engine
• Heavy Duty skid/trailer with
removable axle and tongue.
• Removable lifting cage
• Hot-dipped Galvanized
Starters And Electric Motors
Motors- Dragon carries a full inventory of TEFC and
Explosion-Proof motors from1-200hp and 1200, 1800,
and 3600rpm. Motors are US made by Baldor and
Reliance.
Starters- Dragon carries a full inventory of
TEFC and Explosion-Proof starters from 200HP
by Sprecher&Schuh and Siemens.
Mud Hoppers- Rigid steel construction, the hoppesr are
designed to provide optimum mixing results. They are low profile
for easy “sack to hopper” transfer and available in 4” and 6” ori-
fice. Equipped with jet nipple, bushing, tee and a valve that has
intermediate settings to regulate the feeding rate.
Venturi tubing is included with every unit.
Mud Guns- The Dragon Mud Gun is designed for submergedservice in pits and is available in a 3” size low-pressure gun. Thisunit is intended for high volume service, such as mud mixing sys-tems that employ centrifugal pumps. All Dragon Mud Guns areavailable with 360°rotation handles, which aid the swivel joints.For reducing the amount of solid buildup in tank corners, DragonMud Guns are highly effective. They also produce flow currents,which boost fluid movements and aid in the suspension or mixingof particles. In addition, Mud Guns can create an alternate productflow when used in conjunction with agitators. Available in one andtwo gun configurations.
Agitators
Dragon Agitators are constructed to
handle the harsh oilfield environment.
Keyless-No Key Ways or
Key Stock needed.
All agitators come with:
• Nord brand nominal 30:1
gear box, constructed with
ultra-tough cast-iron.
• Tapered roller bearings on
the output shaft to handle the
highest thrust loads.
• Nema C face input for the
electric motor.
Our agitators features the new dacromet coated corrosion
resistant keyless coupling for easy installation and impeller
adjustment. The units come complete with base plate, motor,
gearbox, impeller, shaft and couplings. Available in all sizes.
• Stackable for easy storage and transport
• Four heavy duty “D” lifting rings
• Angled approach ramps
• Constructed from 1/4” steel wall material
• 3” x 6” rectangular crosstubing
• 150# Flange inlet/outlet
• Hot dipped galvanized to prevent corrosion
and rust for longer production life
Four Sizes to choose from:
8” Flange x 12 feet
8” Flange x 24 feet
12” Flange x 12 feet
12” Flange x 24 feet
Road Crossing Manifolds
Dragon Custom Pumps
Let one of our Pump Specialist help you to
design and build a custom system to suit
your production needs. Combined with our
Design Engineers, you will get a quality
built product backed by experience, parts
and a on-site service team. All systems are
manufactured in the USA.
Our Pump packages are custom fabrication
to meet our customers specific needs in the
Petrochemical, Shipping, Drilling, Agricultural
and Minning industries. All Dragon pumps
and packages are assembled and tested at
our manufacturing plant in Liberty, Texas. All
internal pump parts such as bearings, shafts,
and mechanical seals are from the highest
quality parts andmaterials made in the USA.
We also refurbish and repair pumps and
have a full stock of replacement parts for our
pumps which are 100% interchangeable with
other popular pumps on the market.
About Dragon Pumps
Inside Back Cover