GP7645

A German-made reciprocating triplex plunger pump.

Features:
Spheroidal cast iron crankcase with sight glass and vented dipstick; forged, through-hardened, ground and polished crankshaft; bronze connecting rods; hardened stainless steel plunger bases; solid ceramic plungers; nitrile seals with fabric reinforcing; stainless steel valves and nickel-plated Spheroidal cast iron manifold.  Comes equipped with an integrated oil cooling system.

  • GP7645 Exploded View
  • GP7645 Parts List

Sorry, there are no accessories associated with this product.

  • Giant Industries Limited Warranty
  • GP7645 Installation Instructions
  • GP7645 Repair Instructions
  • Troubleshooting Guide

SPECIFICATIONS

U.S. Metric
Flow 55.5 GPM 210 L/min
Maximum Pressure 3000 PSI 200 bar
Speed 800 RPM
Plunger Diameter 1.77″ 45 mm
Max. Temperature 86 ºF 30 ºC
Inlet Ports (2) 2-1/2″ NPT
Discharge Ports (2) 1-1/4″ NPT
Shaft Rotation Top of Pulley Towards Manifold
Crankshaft Diameter 1.9″ 48 mm
Key Width 0.6″ 14 mm
Shaft Mounting Either Side
Weight 408 lbs. 185 kg
Crankcase Oil Capacity 1.6 gal 4.6 L
NPSHR Required 29.8 ft.-Head 9.1 mWs
Key Component Material
Manifold Nickel-Plated Spheroidal Cast Iron
Plungers Solid Ceramic Oxide
Valves High Grade Stainless Steel
Seals Nitrile With Fabric Reinforcing
Gear End Spheroidal Cast Iron

Click the image to enlarge


HORSEPOWER SPECIFICATIONS

RPM GPM 1000 PSI 1500 PSI 2000 PSI 3000 PSI
400 27.8 19.2 28.8 38.3 57.5
500 34.7 23.9 35.9 47.9 71.8
600 41.6 28.7 43.0 57.4 86.1
700 48.6 33.5 50.3 67.0 100.6
800 55.5 38.3 57.4 76.6 114.8

Horsepower Requirements

The ratings shown are the power requirements for the pump. Gas engine power outputs must be approximately twice the pump power requirements shown above.

We recommend a 1.15 service factor be specified when selecting an electric motor as the power source. To compute specific pump horsepower requirements use the following formulas:
Electric HP = (GPM X PSI)/1450
as HP = (GPM X PSI)/1100


*Engine power varies based on horizontal or vertical orientation, as well as by makes and models from each manufacturer.


REPAIR KITS

ITEM# PART# DESCRIPTION Qty.
Plunger Packing Kit – Part #09603
38A 13156 O-Ring 3
38B 06258 O-Ring 3
39A 13290 Grooved Ring 3
42 13294 V-Sleeve 9
Oil Seal Kit – Part #09221
32 07624 Radial Shaft Seal 3
33A 07627 O-Ring 3
Inlet Valve Assembly Kit – Part #09659
51 05594 Inlet Valve Assembly 1
56A 07658 O-Ring 1
56B 07635 Support Ring 1
Large Discharge Valve Assembly Kit – Part #09660
52 05600 Discharge Valve Assembly 1
55 05647 Valve Spacer 1
56A 07658 O-Ring 1
56B 07635 Support Ring 1
Small Discharge Valve Kit* – Part #09661
51B 05450 Valve Spring 1
51C 05247 Valve Plate 1
51D 05596 O-Ring 1
52F 05599 O-Ring 1
56A 07658 O-Ring 1
56B 07635 Support Ring 1
*The discharge valve seat (item 52E) can be flipped over and used.  If it is damaged on both sides, order kit #09660

Repair Kits Available

The repair kits listed to the right are available for this pump. If you need further information about these repair kits, or have questions about other specific parts for your pump, please contact you local Giant distributor or contact Giant customer service.

PUMP CATEGORIES:
Service & Repair

Giant provides service on each pump and accessory that we sell. Many basic repair procedures are covered in the Giant repair manual. For all other questions on service or repair needs please contact your local Giant distributor.