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  1. BillyBadFace

    Valves covered by Spec. API 6FC

    Gents, I'm trying to get a handle on API 6FC 'Fire Test for valves with Automatic Backseat' does this specification apply to choke valves in wellhead areas, if not what type of valve does this Spec. apply to ?. Cheers BBF
  2. BillyBadFace

    Class IV Control Valve Leakage Rates

    Gents, Thank you very much for your replies they have been very helpful. I think I will use this site more often it seems to hsve good people subscribing to it. Cheers BBF
  3. BillyBadFace

    Class IV Control Valve Leakage Rates

    "Should the test pressure i.e. 50 psi be taken into consideration during leakage testing of a class IV control valve, to identify the "Rated Valve Capacity".

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