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A German-made reciprocating triplex plunger pump.

Features:
Spheroidal cast iron crankcase with vented dipstick; forged, through-hardened, ground and polished crankshaft; bronze connecting rods; hardened stainless steel plunger bases; stainless plungers with hardened metal coating; aramid packing; stainless steel valves and machined stainless steel manifold.

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

Specification US Metric
Flow9.9 GPM37.5 L/min
Maximum Discharge Pressure10150 PSI700 bar
Crankshaft Speed750 RPM
Power71.8 HP53.5 KW
Max Temperature140 °F60 °C
Inlet Port Size(2) 1-1/4" BSP
Discharge Port Size(2) 3/4" BSP
Plunger Diameter0.87 in.22 mm
Stroke2.05 in.52 mm
Maximum Inlet Pressure140 PSI10 bar
Crankshaft Diameter48 mm
Crankshaft RotationTop of Pulley Towards Manifold
Key Width14 mm
Crankshaft MountingEither Side
Crankcase Oil Capacity1.6 gal 6.0 L
Weight375 lbs.170 kg
Volumetric Efficiency89%
Mechanical Efficiency83%
NPSHR83% Ft.-head
Manifold Material Stainless Steel
Crankcase Material Spheroidal Cast Iron
Plunger Material Stainless Steel with Hardened Metal Coating
Valve Material Stainless Steel
Seal Material Aramid Packing
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.
ITEM# PART# DESCRIPTION Qty.
Plunger Packing Kit – Part #09701
38B 06750 Leakage Seal 3
38C 06667 O-Ring 3
39A 05523 O-Ring 6
42 06754 Spiral Ring (packing) 6
43 06755 Support Ring 6
44 06756 Guide Ring 3
46 13390 Seal Ring 3
Inlet Valve Assembly Kit – Part #09702
51B 05193 O-Ring 2
51C 05194 Inlet Valve Seat 1
51D 06761 Valve Plate 1
51E 06762 Valve Spring 1
58A 07770 O-Ring 1
58B 07693 Support Ring 1
Discharge Valve Assembly Kit – Part #09703
51B 05193 O-Ring 1
51D 06761 Valve Plate 1
51E 06762 Valve Spring 1
52C 05195 Discharge Valve Seat 1
58A 07770 O-Ring 1
58B 07693 Support Ring 1
Oil Seal Kit – Part #09221
32 07624 Radial Shaft Seal 3
33A 07627 O-Ring 3

Horsepower Specifications

RPM GPM 5000 PSI 7000 PSI 9000 PSI 10,500 PSI
300 4.0 14.3 20.0 25.7 29.0
400 5.3 18.9 26.5 34.1 38.4
550 7.3 26.1 36.5 46.9 52.9
600 7.9 28.2 39.5 50.8 57.3
650 8.6 30.7 43.0 55.3 62.4
700 9.2 32.9 46.0 59.1 66.7
750 9.9 35.4 49.5 63.6 71.8

Images Open in new Window/Tab

  • Dimensional Drawing (Side) Open
  • Dimensional Drawing (Front) Open
  • GP7122 Exploded View
  • GP7122 Parts List
  • GP7122 Torque Specifications

Literature

Documents open in new window/tab.

  • Giant Industries Limited Warranty
  • GP7122 Installation Instructions
  • GP7122 Repair Instructions
  • Troubleshooting Guide

Sample Pump

Our Company

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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