A German-made reciprocating triplex plunger pump.

Aluminum 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 manifold.

Gearbox and bell housings (to connect to gasoline, diesel, electric or hydraulic drive) and pulsator valve.

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

  • P460A Exploded View
  • P460A Parts List
  • P460A Torque Specifications
  • P460A Technical Drawing
  • Giant Industries Limited Warranty
  • P460A Installation Instructions
  • P460A Repair Instructions
  • Troubleshooting Guide


U.S. Metric
Flow 3.2 GPM 12.3 L/min
Max Discharge Pressure 7250 PSI 500 bar
Max Inlet Pressure 145 PSI 10 bar
Max Speed 1450 RPM 1450 RPM
Plunger Diameter 0.55″ 14 mm
Stroke 0.79″ 20 mm
Max Temp 104 °F 40 °C
Crankshaft Diameter 1.10″ 28 mm
Key Width 0.32″ 8 mm
Weight 46 lbs. 21 kg
Crankcase Capacity 27fl. oz. 0.8 L
Inlet Ports (2) 1/2″ BSP
Discharge Ports (2) 3/8″ BSP
Shaft Rotation Top of Pulley Towards Manifold
Shaft Mounting Either Side
Power Required 16 BHP 16 BHP
Key Component Material
Manifold High Grade Stainless Steel
Plungers Solid Ceramic Oxide
Valves High Grade Stainless Steel
Seals Nitrile With Fabric Reinforcing
Gear End Aluminum

Click the image to enlarge


RPM GPM 4000 PSI 5000 PSI 6000 PSI 7250 PSI
725 1.6 4.4 5.5 6.6 8.0
900 2.0 5.5 6.9 8.3 10.0
1200 2.6 7.2 9.0 10.8 13.0
1450 3.2 8.8 11.0 13.2 16.0

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
Gas HP = (GPM X PSI)/1100

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


Plunger Packing Kit – Part #09499
21 07266 O-Ring 3
23 06483 Grooved Seal Packing 6
23A 13036 Spacer Ring 3
24 06484 Pressure Ring 3
Valve Assembly Kit – Part #09498
27A 05543 Valve Assembly, Complete 6
33 07489 O-Ring 3
Oil Seal Kit – Part #09641
19 05444 Oil Seal 3

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.

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.