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An American-made triplex plunger positive displacement pump with reciprocating plungers for direct or belt drive applications.

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 forged brass manifold.

Gearbox and bell housings (to connect to gasoline, diesel, electric or hydraulic drive), couplers (aluminum or Delrin), unloader/regulator, fixed or adjustable chemical injector, thermal relief valve 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

Specification US Metric
Flow4.8 GPM18.2 L/min
Maximum Discharge Pressure2200 PSI150 bar
Crankshaft Speed1450 RPM
Power7.3 HP5.4 KW
Flow (High Speed)5.8 GPM22 L/min
Maximum Discharge Pressure (High Speed)1100 PSI75 bar
Power Consumption (High Speed)4.4 HP3.3 KW
Crankshaft Speed (High)1750 RPM
Max Temperature160 °F70 °C
Inlet Port Size(2) 1/2" BSP
Discharge Port Size(2) 3/8" BSP
Plunger Diameter0.79 in.20 mm
Stroke0.56 in.14.1 mm
Maximum Inlet Pressure145 PSI10 bar
Crankshaft Diameter0.94 in.24 mm
Crankshaft RotationTop of Pulley Towards Manifold
Crankshaft MountingEither Side
Crankcase Oil Capacity US14.2 fl. oz. 0.42 L
Extended Crankcase Oil Capacity17.0 fl. oz. 0.5 L
Weight16 lbs.7.3 kg
Manifold Material Forged Brass
Crankcase Material Aluminum Die Cast
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.
Plunger Packing Kit – Part #09145
21 07780 O-Ring 3
22 12027 O-Ring 3
23 08358 Grooved Seal 6
24 08346 Pressure Ring 3
Valve Assembly Kit – Part #09116
31 07853 O-Ring 6
32x 07946A Valve Assembly Complete 6
33 07913 O-Ring 6
Oil Seal Kit – Part #09144
19 08356 Oil Seal 3

Horsepower Specifications

RPM GPM 1000 PSI 1100 PSI 1500 PSI 1750 PSI 2000 PSI 2200 PSI
810 2.8 1.9 2.1 2.9 3.4 3.9 4.3
1080 3.8 2.6 2.9 3.9 4.6 5.2 5.8
1450 5.1 3.5 3.9 5.3 6.2 7.0 7.7
1750 6.2 4.3 4.7

Images Open in new Window/Tab

  • Dimensional Drawing (Side) Open
  • Dimensional Drawing (Front) Open
  • P324 Exploded View
  • P324 Parts List
  • P324 Torque Specifications


Documents open in new window/tab.

  • Giant Industries Limited Warranty
  • P324 Installation Instructions
  • P324 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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