An American-made axial design positive displacement triplex plunger pump for direct drive only.

Aluminum crankcase, machined wobble plates, stainless steel thrust bearings, stainless steel plungers, nitrile seals (with fabric reinforcing), Delrin valves, forged brass manifold, integrated regulator, thermal relief valve and optional fixed or adjustable chemical injector.

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

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  • Giant Industries Limited Warranty
  • GXR2224 Installation Instructions
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  • Troubleshooting Guide


U.S. Metric
3450 RPM
Flow 2.2 GPM 8.3 L/min
Pressure (Continuous) 2400 PSI 165 bar
Common Specifications
Maximum Inlet Pressure 90 PSI 6.2 bar
Plunger Diameter .63″ 16 mm
Stroke 4.7 mm (6.1º angle)
Max. Temperature of Pumped Fluids 80 ºF 27 ºC
Inlet Ports 1/2″ NPT
Discharge Ports 3/8″ NPT
Shaft Rotation Either Side
Key Width (Horizontal) 3/4″ x 3/16″ Keyway
Weight 9 lbs. 4.1 kg
Crankcase Oil Capacity (Horizontal) 4.1 fl. oz. 121 ml
Crankcase Oil Capacity (Vertical) 4.7 fl. oz. 138 ml
Key Component Material
Manifold Special Brass
Plungers Solid Ceramic Oxide
Valves High Grade Stainless Steel
Seals Nitrile With Fabric Reinforcing
Gear End Aluminum

Click the image to enlarge


RPM GPM 1000 PSI 1500 PSI 2000 PSI 2500 PSI
3450 2.2 1.5 2.3 3.0 3.6


RPM GPM 1000 PSI 1500 PSI 2000 PSI 2500 PSI
3450 2.2 2.0 3.0 4.0 4.8

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 #09465
20 06290 Support Ring 3
21 06315 V-Sleeve 3
Valve Assembly Kit – Part #09466
18 07374 Valve Spring 6
19 06267 Guided P-Valve 3
36 06295 Discharge Valve Cone 3
Oil Seal Kit – Part #09468
15 06316 Plunger Oil Seal 3
Regulator Repair Kit – Part #09534
24 23507 O-Ring 1
25 06710 Seat 1
26 06386 Ball 1
27 06385 O-Ring 1
28 06384 Plastic Poppet Valve 1
30 06410 O-Ring 1

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.