Dry pressure testing

[Riley26]

Has anyone got any info or links to info on using air to dry pressure test copper pipe?

 

[denso13]

http://copperplumbing.org.uk/sites/...tachments/pressure-testing-piping-systems.pdf

 

[Agile]

Yon can do it at low pressure for gas pipes but should not do it at high pressure.

Tony

 

[Riley26]

By low pressure do you mean up to 0.5 bar?

 

[Riley26]

1.5 times the working pressure of gas. Is this all air is suitable to test?

 

[PullerGas]

Oh FFS!! You better not let Onetwat read this thread!!..........

 

[Riley26]

I was just asking about dry testing not if it was only suitable for gas

 

[muggles]

You shouldn't really dry test at all, as if a fitting blows off and hits someone it'll have a good chance of killing them, though you'd be rather unlucky for that to happen

 

[Riley26]

Guessing you have answerd my question then it is best just used for gas as 1.5 its working pressure is 30mb. Were as water you can be talking above 5 bar

 

[Agile]

With gas you are testing to see if there are any leaks.

With high pressure water you are testing to see if any fittings get blown off.

Air/gas has a very low viscosity and will leak from a very small hole.