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  1. chuchcatlanta

    Which ball valve to use when high diff. pressure after closing?

    for extreem pressures you might consider a VOGT gate valve--they have some rated up to 6000psi ---commonly used in NUKE plants
  2. chuchcatlanta

    ANSI Valve standards

    I need info in ANSI valve wall thickness requirements....ie. how thick should a 300# ansi ball valve of 10" size be??? anyone know how to access the ANSI codes online?
  3. chuchcatlanta

    Valve definition website

    Flag down a Fisher-Rosemount salesman and ask him/her for "the black book" for flow control
  4. chuchcatlanta

    valve orientations

    The orientation will effect the valve IF it is not a "caged" style valve-the weight of the valve stem will cause wear faster on one side due to the gravitationally assisted friction.
  5. chuchcatlanta

    Ball Valve Type

    A floating ball valve is captured between the seats and is litterally floating---this type of valve is generally of smaller size and of lower pressure class since a higher pressure can press the ball into the downstream seat and "unseat" the upstream side. Also really heavy large balls...
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