02/10/2026
This is why cylinders should only be tested at Idest test centres.
Some none Idest testing services don't test or service the valves. Below is a valve that we've just taken off a cylinder!
This valve is from a very old cylinder that past its hydro test a year ago.
The ring gauge is for no-go and should only screw on a maximum of 2-3 turns. It goes the whole way showing the thread has worn excessively. This is a danger as the value could blow out of the cylinder at 200bar. Killing or maiming someone.
The valve had not been serviced for many years.
Saving a few pounds using a none Idest centre could cost you your life.