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inspection of reinforcement -plate welds

inspection of reinforcement -plate welds

inspection of reinforcement -plate welds

(OP)
As per API650 , 5.3.4 reinforcement pad shall be pnumatic tested upto 100kPa, but our client is cocerned about the pressure gauge range. Is there any specific requirement spelled in API. pL HELP

RE: inspection of reinforcement -plate welds

Nothing in API.  Industry standard, codified in ASME, is for the test gauge range to be between 1.5 and 4 times the test pressure.

 I prefer a 25 psig - 175 kPa gauge for the 10 psig repad testing.  200 kPa would also be a good choice.

RE: inspection of reinforcement -plate welds

The standard for gauge range I have used is zero to between 1.5 times and 4 times the test pressure.  This is the standard in UG-102(b) of Section VIII Div 1 of the ASME BPVC.

Note: ASME uses the word "gage" for the testing apparatus, if you are searching an electronic file.

RE: inspection of reinforcement -plate welds

I agree with Duwe6. API 650 has nothing related to the choice of gauges. We have been referring to ASME Sec. VIII as well as a good engineering practice.

However, a few of our Client specifications state this a little differently...

"All gages shall have test pressure ranges 40 percent to 80 percent of the full range."

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