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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
Flow3.9 GPM14.7 L/min
Maximum Discharge Pressure1500 PSI100 bar
Crankshaft Speed1420 RPM
Power3.9 HP2.9 KW
Max Temperature160 °F70 °C
Inlet Port Size(2) 1/2" BSP
Discharge Port Size(2) 3/8" BSP
Plunger Diameter0.71 in.18 mm
Maximum Inlet Pressure29 PSI2 bar
Crankshaft Diameter22 mm
Crankshaft RotationTops of Pulley Towards Manifold
Crankshaft MountingEither Side
Crankcase Oil Capacity US12.5 fl. oz. 0.37 L
NPSHR18.0 Ft.-head5.5 mWs
Manifold Material AISI 316L
Plunger Material Solid Ceramic Oxide
Valve Material High-Grade Stainless Steel
Seal Material Teflon Seals and Viton O-Rings
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 #09572-0021
31 03666 Seal Pack, Teflon 3
31A 03667 Support Disc 3
38 06015-0001 O-Ring, Viton 3
40 07212-0001 O-Ring, Viton 3
42 07214-0001 O-Ring, Viton 3
Valve Assembly Kit – Part #09041-0100
34 07325-0100 Retainer, Spring 6
35 06017-0100 Valve Spring 6
36 06016-0100 Valve Plate 6
37 06014-0100 Valve Seat 6
38 06015-0001 O-Ring, Valve Seat 6
40 07212-0001 O-Ring, Adapter 3
42 07214-0001 O-Ring, Manifold Plug 6
Oil Seal Kit – Part #09202
26 07206 Oil Seal 3

Horsepower Specifications

RPM GPM 500 PSI 1000 PSI 1500 PSI
851 2.3 0.79 1.6 2.4
967 2.7 0.93 1.9 2.8
1084 3.0 1.0 2.1 3.1
1201 3.3 1.1 2.3 3.4
1317 3.6 1.2 2.5 3.7
1420 3.9 1.4 2.7 4.0

Images Open in new Window/Tab

  • Dimensional Drawing (Side) Open
  • Dimensional Drawing (Front) Open
  • P55-5121 Exploded View
  • P55-5121 Parts List

Literature

Documents open in new window/tab.

  • Pump Assembly Instructions
  • Giant Industries Limited Warranty
  • P55-5121 Installation Instructions
  • P55-5121 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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