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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
Flow5.5 GPM20.8 L/min
Maximum Discharge Pressure4350 PSI300 bar
Crankshaft Speed1450 RPM
Power16.5 HP12.3 KW
Intermittent Flow5.5 GPM20.8 L/min
Intermittent Discharge Pressure5100 PSI350 bar
Intermittent Crankshaft Speed1450 RPM
Intermittent Power Consumption19.2 HP14.3 HP
Max Temperature160 °F70 °C
Inlet Port Size(2) 3/4" BSP
Discharge Port Size(2) 1/2" BSP
Plunger Diameter0.71 in.18 mm
Stroke0.79 in.20 mm
Maximum Inlet Pressure145 PSI10 bar
Crankshaft BoreSAE 2B or SAE 4B 13T 16/32 Spline
Crankshaft RotationTowards Fluid End
Crankshaft MountingEither Side
Crankcase Oil Capacity30.4 f. oz. 0.9 L
Weight38.3 lbs.17.4 kg
NPSHR32.8 Ft.-head10.0 mWs
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 #09141
21 07266 O-Ring 3
23 08477 V-Sleeve 6
24 07929 Pressure Ring 3
Valve Assembly Kit – Part #09644
27A 05543 Valve Assembly, Complete 6
33 05545 O-Ring 6
Oil Seal Kit – Part #09641
19 05444 Oil Seal 3

Horsepower Specifications

RPM GPM 2000 PSI 3000 PSI 4350 PSI 5100 PSI*
920 3.5 4.8 7.2 10.5 12.3
1050 4.0 5.5 8.3 12.0 14.1
1185 4.5 6.2 9.3 13.5 15.8
1315 5.0 6.9 10.3 15.0 17.6
1450 5.5 7.6 11.4 16.5 19.3

*Intermittent duty only!

Images Open in new Window/Tab

  • Dimensional Drawing (Side) Open
  • Dimensional Drawing (Front) Open
  • P455BH Exploded View
  • P455BH Parts List

Literature

Documents open in new window/tab.

  • Giant Industries Limited Warranty
  • P455BH Installation Instructions
  • P455BH 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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