Hydrostatic Test of Pipe
Hydrostatic Test of Pipe
(OP)
When using ASTM A 530/530M or A450/450M - is deionized water required for the hydrostatic test?
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RE: Hydrostatic Test of Pipe
RE: Hydrostatic Test of Pipe
It is a different case than running water during operation in which fresh minerals are being continuously brought in and accumulated corrosion happens for long term so good water quality is then required.
RE: Hydrostatic Test of Pipe
Just go ahead and hydrotest as per normal unelss the buyer insists on somethign else, then just make sure they pay for the out of the ordinary test.
You might want to make sure the piping/vessel is cleand out well after though, purge it with air or run a pig through piping.
RE: Hydrostatic Test of Pipe
David
RE: Hydrostatic Test of Pipe
get your CLIENT's complete agreement with the test protocol and the test fluids. Using DI water is essential sometimes, useless others. Using salt or choline filled "street water" in a steam system or HP gas system might require hours or days of flushing, or it might be completely irrelevant to future ops.
Regardless, it always seems that by the time the hydro-test is scheduled, the overall schedule is behind from other problems, and the testing is always under pressure even before they fill the pipes "to get it finished faster"
RE: Hydrostatic Test of Pipe
RE: Hydrostatic Test of Pipe
David
RE: Hydrostatic Test of Pipe
RE: Hydrostatic Test of Pipe
for C/S it is safe to use raw potable water but for SS it is better and safer with DI water.
If raw water is used, drain the vessel asapossibe and air dry it.
genb
RE: Hydrostatic Test of Pipe
A-450/A530 applies to carbon, low alloy and stainless steel grades. Which grade(s)of material will be hydrotested? How long will the tubes be stored after hydrotest before installation or placed in service? When testing austenitic stainles, low chloride containing water should be employed for the hydrotest or low chloride water must be used for rinsing.
Are you testing boiler components for Heat Recovery Steam Generating equipment?