Wholesale China ANSI Carbon Steel Class150 4inch to 3inch Ball Valve Hot Sale

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Body pressure detection

1.Seal hydrostatic test:The pressure should be more 1.1 times than working pressare by seal hydrastatic test.

2.Seal air test: Seal air leakage test is based on 80psig (6kgf/cm^ nin-actiue gas or full filled with air, after dose the valve, then check it is leakage or not by one side  of the valve.