The Midlands Leading Independent Compressed air house

In addition to meeting the installation and hardware requirements of compressed air systems, Cooper Freer can supply extensive experience and capability in the provision of specialist services that include air treatment specification.

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Pressure Vessel and Pressure System Inspections

The Pressure Systems Safety Regulations 2000 (PSSR) require pressure systems to be inspected in accordance with a Written Scheme of Examination.

Pressure vessel regulations apply to owners and users of relevant fluids including steam, gases under pressure and any fluid kept artificially under pressure and which becomes a gas when released to the atmosphere.

There is a legal requirement for thorough examination of pressure vessels and receivers that contain steam, compressed air and refrigerants. Any pressure vessel containing compressed gas over 250 bar / litres capacity requires inspection.

To establish whether you need a pressure vessel inspection, multiply the vessel operating pressure (in bar units) by the vessel capacity (in Litres) i.e. 10 bar x 50 Litres = 500 bar / litres Capacity and therefore is above the 250 bar / litre threshold and requires an inspection with a written scheme of examination.

Owner / users of refrigeration plant containing pressure vessels, with compressor power over 25 kilowatts also require a written scheme of examination and inspection.

Cooper Freer can provide you with full compliance, by means of thorough examination together with Written Scheme of Examination documentation.


Pressure Systems Inspection Services

  • Free impartial advice by phone – whether you have one or multiple vessels/systems
  • No-obligation quote for all identified inspection requirements
  • Test-house facility available if required
  • Inspection Service contract and schedule
  • PSSR Inspections by friendly, qualified engineers, by appointment
  • Immediate feedback should any serious defects be identified
  • Summary and review of any queries arising from the inspection, at the end of the visit
  • Written reports by post or via our online reporting system
  • Cooper Freer will manage your PSSR inspection schedule for you and let you know well in advance when inspections are due
  • On-site or test house facilities to prove / validate repaired vessels