for how long and to what pressure do people pressure test for?

[Fallout]

for how long and to what pressure do people pressure test for? Is a poly plumb and copper system.

 

[Dean744PiN5]

18bar for 1 hour with polyplumb if i remember correctly.

Hep is 10bar for 1 hour.

Would be prudent to do a pre-test test at 1 bar to deal with any weeps ect, if any.

 

[Fallout]

18 bar sounds alot I have a few copper soldered fittings on the system.

 

[Dean744PiN5]

18 bar is fine for copper.

 

[Fallout]

Do you test to 18bar? I was just going to go to 10 bar 18 bar sound high. Don't want to damage the pipework

 

[Dean744PiN5]

Pipe and fittings only should be tested. The system should be completely filled using water at not more than 20°C at a test pressure of 18 bar which should be applied for not less than 15 minutes and no longer than 1 hour. Joint security can be checked visually and by tugging at joints - See more at: http://www.polypipe.com/building-pr...al-advice/system-testing#sthash.bx6XBWIH.dpuf

from the polyplumb website, you wont damage the pipe at that pressure.

 

[Dean744PiN5]

yes i have tested at 18 bar before, it all depends on the manufacturers stated procedure.

 

[Dean744PiN5]

heres a hep test i done last week at 10bar which is their procedure

 

[Fallout]

Thanks and 18bar is ok for the soldered copper fittings I have on the system?

 

[Fallout]

It won't damage solderd fittings?

 

[Dean744PiN5]

yes it will be fine, i believe the pressure is so high on pushfit as to ensure the fittings are properly fitted.

And you will definitely know of any leaks at that pressure

 

[Fallout]

thanks do you bother with any air removal when pumping up to pressure?

 

[Dean744PiN5]

yes you should purge air from all points.

 

[muggles]

There should be no air whatsoever in the pipes during a pressure test

 

[Fallout]

How do you get rid of all the air, without a valve on each pipe to purge it?