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A German-made reciprocating triplex plunger pump.

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; stainless plungers with hardened metal coating; nitrile seals with fabric reinforcing; stainless steel valves and forged brass manifold.

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

Specification US Metric
Flow7.9 GPM30.0 L/min
Maximum Discharge Pressure7250 PSI500 bar
Crankshaft Speed1000 RPM
Power39.5 HP29.5 KW
Max Temperature104 °F40 °C
Inlet Port Size(2) 3/4" BSP
Discharge Port Size(2) 1/2" BSP
Plunger Diameter0.71 in.18 mm
Stroke1.65 in.42 mm
Maximum Inlet Pressure87 PSI6 bar
Crankshaft RotationTop of Pully Towards Manifold
Crankshaft MountingEither Side
Crankcase Oil Capacity US101 fl. oz. 3.0 L
NPSHR26.2 Ft.-head8.0 mWs
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.
Plunger Packing Kit – Part #09737
33A 08087 Grooved Ring 3
36 06359A Pressure Ring 3
36A 04117 Guide Ring 3
36B 05263 Support Ring 3
37 06360 Sleeve 6
38 13422 Sleeve Support Ring 3
39 13424 Leakage Seal 3
Valve Assembly Kit – Part #09738
44 04394 Valve Assembly 6
51 05972 O-Ring 3
Oil Seal Kit – Part #09577
31 07133 Oil Seal 3


Horsepower Specifications

RPM GPM 3000 PSI 5000 PSI 6000 PSI 7250 PSI
500 3.9 8.1 13.5 16.3 19.6
600 4.7 9.8 16.3 19.6 23.7
700 5.3 11.00 18.4 22.1 26.7
800 6.3 13.1 21.9 26.3 31.7
900 7.1 14.8 24.7 29.6 35.7
1000 7.9 16.5 27.4 35.7 39.8


Images Open in new Window/Tab

  • Dimensional Drawing (Side) Open
  • Dimensional Drawing (Front) Open
  • LP750 Exploded View
  • LP750 Parts List
  • LP750 Torque Specifications


Documents open in new window/tab.

  • Giant Industries Limited Warranty
  • LP750 Installation Instructions
  • LP750 Repair Instructions
  • Troubleshooting Guide

Sample Pump

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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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