Hydrostatic Test Units

Hydrostatic Test Units

Compact, Mobile High-Pressure Hydrostatic Test System

The HTU from Cat Pumps is a compact mobile high-pressure system utilising the highly reliable and long-lived Cat Pumps high pressure plunger pump. The HTU can be used for testing of pipelines, delivery hoses, valves, heat exchangers and other pressure related components.


  • Cat Pumps High Pressure Plunger Pump
  • Pressures ranges up to 689 bar
  • Choice of 3 phase or single phase gear-motor
  • Pressure regulating valve
  • Pressure relief valve
  • Calibrated Pressure gauge
  • Pressure release valve
  • 25 or 50 litre plastic water tank


  • Highly reliable, low energy consuming, easy to service pump
  • Low noise operation
  • Mobile and compact design
  • Corrosion resistant wetted components and hoses
  • Robust frame design
  • Sturdy wheels

Model shown is for illustrative purposes only. Actual unit may vary significantly depending on customer specification.

Hydrostatic Pressure Test Unit Operation

The Cat Pumps HTU comprises of a high-pressure pump and motor/gear-motor assembly. An inbuilt 25 or 50 litre water supply tank feeds the high-pressure pump which in turn feeds a high-pressure distribution manifold, which incorporates a pressure regulator and an easy to read calibrated pressure gauge. The HTU has an inbuilt pressure relief valve that will prevent the unit from achieving pressures in excess of the system design. An incorporated pressure release valve allows the pressurised water to be released back to the supply tank after a hydrostatic test has been completed.


View Our HTU Case Studies:

#26 HTU for the Health & Safety Laboratory

#29 Hydrostatic Pressure Testing of Shower Components

#37 HTU for Cyclic Pressure Testing Application




1 Fleet Business Park
Sandy Lane
Church Crookham
FLEET, Hampshire
GU52 8BF

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