ASME B31.5 Proof Test 504.7(c)

[CSunny]

I am in the process of registering one of our refrigeration system designs under ABSA. The engineer reviewing our documents said he needs us to do a proof test on the condenser coil which is part of the refrigeration system.

ASME B31.5 paragraph 504.7(c), says the heat transfer components should withstand a proof test pressure of 3* design pressure, but doesn't specify the test temperature, test medium or the duration of the test.

What should be the test conditions for this test?

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[Cobra17]

Proof tests are done with water at ambient temperature and slowly brought up to pressure and held for a minute or so. They also must be witnessed by an Authorized Inspector and the report has to be signed off by them. I would take the component to failure. ABSA doesn't like things that aren't done to VIII-1 UG-101 for proof test, so failure would be a better option if you can't do it to UG-101.

 

[r6155]

See Chapter VI Examination, Inspection and Testing. It's very clear.

Regards

 

[CSunny]

@Cobra17 What is the minimum burst/failure pressure required to pass the test? Is it 3 times of the design pressure??

@r6155 I looked at chapter VI of ASME B31.5 and found no information regarding proof test, though it talks about pressure tests and Leak tests. Can you please explain ?

 

[Cobra17]

Depends on your MTR's of the specific test product. You have to adjust for the materials strength over then minimum. See UG-101(m)

 

[r6155]

CSunny
Are you sure the engineer requires ASME VIII Div 1 UG-101?
If so, why UG-101?

Regards