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I can't seem to find the answer to this age old question:
When pressure testing pipes, we can use either Air or Water (or other fluids). What is the equivalent pressure test, water-to-air. For example, if I am used to pressure testing with water at 120 psig, what is the equivalent Air pressure test?
Can you offer your assistance?
Pressure is pressure. It has the same value independent of the pressurizing agent. Either a gas or a fluid will work when testing for leaks. It might be convenient to use one or the other depending on the case.
If you have a closed pressurized system then you need some sort of gauge to measure the leakage rate. If you have a dynamic system then you need some sort of device that detects the escaping internal substance, such as a freon detector for an air conditioning system.
(published on 06/11/09)
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