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Service test in piping system

Service test in piping system

Postby manigdcl » Wed Aug 14, 2013 9:39 am

Hi Experts,
Can you explain and give information about the service test in a piping system.
manigdcl
 
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Re: Service test in piping system

Postby alvaro » Thu Aug 15, 2013 9:44 am

This test (initial service leak test) is applicable only to specific cases as defined by the codes (e.g. ASME B31.3 par. 345.7 limits the use of this test to category D fluid service and ASME B31.1 par. 137.7.1 specifies that an initial service test is not applicable to boiler external piping).

Initial service leak test is used when other types of tests are not practical (e.g. piping where shut-off valves are not available for isolating a line and where temporary closures are impractical) or when leak tightness is demonstrable due to the nature of the service.

This test is conducted when the piping system is first put into operation. When running an initial service test, the piping system shall be gradually brought up to the normal operating pressure and it is then maintained at that pressure while an examination for leaks is performed.
alvaro
 
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