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  1. Pern1971

    API 6D Valve Leak Rate

    I have some valves that are leaking under approx 80 psig. They are 3" steel ball valves with a PFE seat, 1/4 turn with a stainless full port ball. The spec sheet says they are designed to API 6D and were tested with API 598. What is the designed leakage rate from new? Where would I find the API...

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