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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.

WARNING: This product might contain a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Specification US Metric
Flow55.5 GPM210 L/min
Maximum Discharge Pressure3000 PSI200 bar
Crankshaft Speed800 RPM
Power114.8 HP85.6 KW
Max Temperature86 °F30 °C
Inlet Port Size(2) 2-1/2" NPT
Discharge Port Size(2) 1-1/4" NPT
Plunger Diameter1.77 in.45 mm
Stroke2.28 in.58 mm
Crankshaft Diameter1.9 in.48 mm
Crankshaft RotationTop of Pulley Towards Manifold
Key Width0.55 in.14 mm
Crankshaft MountingEither Side
Crankcase Oil Capacity1.6 gal 6.0 L
Weight408 lbs.185 kg
NPSHR9.1 mWs
Manifold Material Nickel-Plated Spheroidal Cast Iron
Crankcase Material Spheroidal Cast Iron
Plunger Material Solid Ceramic Oxide
Valve Material High Grade Stainless Steel
Seal Material Nitrile with Fabric Reinforcing
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.
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

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

Images Open in new Window/Tab

  • Dimensional Drawing (Side) Open
  • Dimensional Drawing (Front) Open
  • GP7645 Exploded View
  • GP7645 Parts List

Literature

Documents open in new window/tab.

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

Sample Pump

Our Company

For 50 years, Giant Pumps has offered the most dependable positive displacement high-pressure triplex pumps available. Designed and built to the highest quality standards, customers count on Giant Pumps products to keep their equipment running. Every design detail of Giant Pumps products is optimized for long-life and reliable performance, making Giant Pumps the most trusted name in high-pressure pumps and systems.

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