Liquid Handling Pumps from General Pump

Triplex Plunger Pump -- HF20A

Triplex Plunger Pump -- HF20A -- View Larger Image
Triplex Plunger Pump -- HF20A-Image


  • Flows from 8.1 GPM to 19.7 GPM
  • Patent-pending symmetrical power end featuring top and bottom mounting holes allowing for easy left to right shaft conversion
  • Low-high pressure packing design with integrated cooling system
  • High volumetric efficient suction/delivery valves
  • Splash lubrication
  • SAE-C drive options available
  • Available with external gear box (direct drive only)
  • 420 SS manifold (HF18A is 17/4 ph)

HF Series – Specifications:
Max. Inlet Pressure: 45 PSI
Max. Fluid Temperature: *140° F
Inlet Port Thread: 1"; NPT-F
Discharge Port Thread: 3/4"; NPT-F
Shaft Diameter: 1.575";/40 mm
Stroke: 1.969";/50 mm
Pump Dimensions: 20.0";x14.5";x9.4";
Crankcase Oil Capacity: 128.5 oz./3.8 liters
Use GP Series 220 Oil

* Please consult technical manual or GP Sales Representative for Temperature/Inlet Pressure information

Product Category
Liquid Handling Pumps
Pump Type
Piston Plunger Pump; Positive Displacement Pump; Reciprocating Pump; Triplex Pump
Discharge Pressure
5800.0 psi (4078 m of Water)
Liquid Flow
12.400 GPM (46.97 L/min)
Discharge Size
0.750 inch (19.05 mm)
Media Temperature
140 F (60 C)

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Power Source
Pump Housing Material