Skip to main content
Featured Image for LP650

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
Flow10.6 GPM40 L/min
Maximum Discharge Pressure6000 PSI400 bar
Crankshaft Speed1080 RPM
Power42.2 HP31.5 KW
Max Temperature104 °F40 °C
Inlet Port Size(2) 3/4" BSP
Discharge Port Size(2) 1/2" BSP
Plunger Diameter0.79 in.20 mm
Stroke1.65 in.42 mm
Maximum Inlet Pressure87 PSI6 bar
Crankshaft RotationTop of Pulley Toward Manifold
Crankshaft MountingEither Side
Crankcase Oil Capacity US101 fl. oz. 3.0 L
NPSHR26.2 Ft.-head8.0 mWs
Manifold Material Forged Brass
Crankcase Material Spheroidal Cast Iron
Plunger Material Solid Ceramic Oxide
Valve Material Duplex 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.
Plunger Packing Kit – Part #09837
33A 04615 Grooved Ring 3
33B 06240 Support Ring 3
36 07268 Pressure Ring 3
37 07322 Sleeve 3
38 07270 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 4000 PSI 5000 PSI 6000 PSI
540 5.3 11.0 14.6 18.3 21.9
600 5.9 12.2 16.3 20.4 24.4
700 6.9 14.3 19.0 23.8 28.6
800 7.9 16.3 21.8 27.2 32.7
900 8.8 18.2 24.3 30.4 36.4
1080 10.6 21.9 29.2 36.6 43.9

Images Open in new Window/Tab

  • Dimensional Drawing (Side) Open
  • Dimensional Drawing (Front) Open
  • LP650 Exploded View
  • LP650 Parts List


Documents open in new window/tab.

  • Giant Industries Limited Warranty
  • LP650 Installation Instructions
  • LP650 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.

Learn More

Join Our Newsletter

Get the latest updates from Giant Pumps delivered right to your inbox!

Subscribe to the Giant Newsletter

Back to Top