GP7550GBHS

A German-made reciprocating triplex plunger pump.

Features
Spheroidal cast iron crankcase with attached gearbox for SAE-C hydraulic mount with 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.

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  • Parts List

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

SPECIFICATIONS

U.S. Metric
900 RPM
Max Flow 70 GPM 265 L/min
Max Discharge Pressure 2500 PSI 175 bar
Inlet Pressure 145 PSI 10 bar
Plunger Diameter 50 mm
Stroke 2.05″ 52 mm
Crankshaft Bore SAE-C Spline 14T 12/24DP
Key Width 0.6″ 14 mm
Shaft Mounting Either Side
Shaft Rotation Hydraulic Gear Towards Back of the Pump
Max Temp 104 ºF 40 ºC
Inlet Ports (2) 2-1/2″ NPT
Discharge Ports (2) 1-1/4″ NPT
Crankcase Capacity 2.1 gal 8.0 L
Weight 474 lbs. 215 kg
Key Component Material
Manifold Nickel-Plated Spheroidal Cast Iron
Plungers Solid Ceramic Oxide
Valves Duplex Stainless Steel
Seals Nitrile with Fabric Reinforcing
Gear End Spheroidal Cast Iron

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HORSEPOWER SPECIFICATIONS

RPM GPM 800 PSI 1000 PSI 1300 PSI 1500 PSI 1900 PSI
400 31.1 17.2 21.5 27.9 32.2 40.8
500 38.9 21.5 26.8 34.9 40.2 51.0
600 46.7 25.8 32.2 41.9 48.3 61.2
700 54.4 30.0 37.5 48.8 46.3 71.3
800 62.2 34.3 42.9 55.8 64.3 81.5
900 70.0 38.6 48.3 62.8 72.4 91.7

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 #09526
38A 13156 O-Ring 3
38B 06258 O-Ring 3
38C 07635 Support Ring 3
39A 07796 Grooved Ring 3
42 07638 V-Sleeve 6
Oil Seal Kit – Part #09221
32 07624 Radial Shaft Seal 3
33A 07627 O-Ring 3
Inlet Valve Kit – Part #09659
51 05594 Inlet Valve Assembly 1
56A 07658 O-Ring 1
56B 07635 Support Ring 1
Large Discharge Valve 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

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.