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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; high temperature 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) and couplers (aluminum or Delrin).

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
Flow4.7 GPM17.8 L/min
Maximum Discharge Pressure2000 PSI140 bar
Crankshaft Speed1750 RPM
Power2.5 HP1.9 KW
Crankshaft Speed (High)4.7 RPM
Intermittent Flow4.7 GPM17.8 L/min
Intermittent Discharge Pressure2500 PSI175 bar
Intermittent Crankshaft Speed1750 RPM
Intermittent Power Consumption3.1 HP2.3 HP
Max Temperature160 °F70 °C
Inlet Port Size(2) 1/2" BSP
Discharge Port Size(2) 3/8" BSP
Crankshaft Diameter24 mm
Crankshaft RotationTop of Pulley Towards Manifold
Key Width0.31 in.8 mm
Crankshaft MountingEither Side
Crankcase Oil Capacity7.5 fl. oz. 0.22 L
Extended Crankcase Oil Capacity9.0 fl. oz. 0.27 L
Crankcase Oil Capacity (Vertical) US9.0 fl. oz. 0.27 L
Weight11.7 lbs.5.3 kg

Horsepower Specifications

RPM GPM 1000 PSI 1500 PSI 2000 PSI 2500 PSI*
250 0.3 0.2 0.3 0.4 0.4
500 0.5 0.4 0.5 0.7 0.9
1000 1.0 0.7 1.1 1.4 1.8
1450 1.5 1.0 1.5 2.1 2.6
1750 1.8 1.2 1.9 2.5 3.1
3000 2.9 2.0 3.0 4.0 5.0
3200 3.1 2.1 3.2 4.2 5.3
3450 3.3 2.3 3.4 4.6 5.7
* Intermittent duty only

Specification Images


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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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