inside front cover · 2019-06-29 · inside front cover. proper pump selecton careful selection and...

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


118 Pump Parts List Chart

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




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




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



PUMP SIZESPUMP SIZE MODEL NUMBERS MATERIAL ROTATION MAX IMPELLER

2X3X13 091-1180 DUCTILE IRON RH 13”







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





34 250 Shaft Key (3/8) 1 4372-5-21 601212392

250 Pump Parts List Chart

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




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

inside front cover · 2019-06-29 · inside front cover. proper pump selecton careful selection and...

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