Hydrostatic vs Pneumatic Test of UG CHW Piping?
Hydrostatic vs Pneumatic Test of UG CHW Piping?
(OP)
The customer requested by what authority are we air testing PVC joints before backfilling the pipe installation? He accepts the fact we will conduct hydrostatic testing once the full pipe branch assemblies are complete. My subcontractor indicates the initial air testing of joints to be common practice and acceptable. Is their a technical explanation to support this approach?





RE: Hydrostatic vs Pneumatic Test of UG CHW Piping?
Its possible that some codes permit leak testing by air, typically at low pressure only. Its also possible that your code prohibits the procedure your sub is using, so its important that you verify the procedures allowed by the particular construction code that you are using and that your sub strictly follows those procedures.
**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: Hydrostatic vs Pneumatic Test of UG CHW Piping?