Pressure testing a compressed air system
Preparing for the test
Before carrying out a pressure test a risk assessment must be carried
out. This is often submitted to the client alongside a method statement.
The risk assessment should consider the hazards involved in over-pressurising
the system. At this time permit-to-work documents, any training, and
health and safety criteria should be discussed and met with the client.
The pipework system will be mapped out and components specified. In some
cases certain parts of a system may require inspection before a test
is carried out.
Pressure test
The system or part of the system will be isolated and a
stab in point identified. Pressure relief valves will be changed for
higher pressure models and a high pressure mobile compressor and regulator
will be installed at the stab in point. The system will be checked and
we
will start to increase the system pressure by 0.5 bar increments. Once
the pressure is at 1.5 times standard operating pressure we will valve
off the compressor and take readings from our testing gauge system. Readings
will be taken at 10 minutes intervals. Once the test is complete we will
exhaust excess pressure in the system through a safe diffuser, replace
safety valves and recommision system. Results will be analysed and a
test certificate issued.
To discuss your requirements visit our contact
page or call 01480 811997.
