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  1. Kellymint

    Pneumatic Proof testing

    I have 6000 psi 1/4" S.S Helium supply line for a test lab that was only hydrostat pressure tested to 6750 psi. The facility contractor should have been proof tested this to 1 and 1/2 times, or 9000 psi. The system is already installed in place and it is not feasible to perform another...
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