The leading NATIONWIDE
inspection, testing and
certification organisation

Request a Quote

Hydrostatic Pressure Testing

Hydrostatic or hydraulic pressure testing of pressure vessels, pipework, components and systems may be required following manufacture, to prove the design, material quality / strength and / or sealing arrangements, to ensure longevity and reliability of manufacture.

For pressure vessels in use, hydro testing may be needed:

  • At periodic intervals
  • Following a statutory inspection where significant corrosion is identified
  • Where you have concerns about performance of “older” equipment
  • Following an incident, damage or repair to the pressure vessel

After extended periods of service, pressure vessels may experience excessive corrosion of the parent material resulting in a loss of wall thickness which may reduce the vessel’s strength.

Ultrasonic thickness measurement tests can be used to measure wall thickness and identify whether the pressure vessel can still perform at its required safe operating pressure.

By performing hydrostatic testing, ISI’s test engineers can assess the vessels suitability for future service.

Pressure vessel test equipment images

Hydraulic & Pneumatic Pressure Testing

Hydraulic testing and implosion testing, on-site or at ISI’s test house to a maximum pressure of 10,344 bar / 150,000 p.s.i. on an infinite range of pneumatic and hydraulic equipment:

  • Accumulators
  • Pipework
  • Air Receivers
  • Proto Types
  • Calorifiers
  • Petro Chemical Installations
  • Hydraulic / Pneumatic Fittings / Assemblies
  • Shot Blast Vessels
  • Heat Exchanges
  • Steam Boilers
  • Hot Water Boilers
  • North Sea Gas / Oil Pipework
  • Pressure Vessels
  • Prototypes / New Products

Please call our pressure testing specialists on 01675 481779 for advice and information

Or see our PSSR pressure system inspection services page

ISI Safety Phenna Group Logo

© 2023 Industrial Safety Inspections Limited, All rights reserved

Head Office: Block 22/23 Amber Business Village, Amington, Tamworth B77 4RP, United Kingdom

Tel: +44 (0) 1675 481779 | Email:

Website Terms of Use | Terms and Conditions of Business | Privacy Statement | Sitemap

Follow us on
ISI Safety LinkedIn

Enquire Now

Armed forces covenant bronze award

INITASAFed Safety Assessment FederationSafe Contractor Certified