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  • Users: qeqe
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  1. qeqe

    pressure control valve

    I want know any kind of usual pressure control valve and information about those in detail whith figure and control circuit.if anyone have information about those item please described to me as bellow step step1:how does it work in detail with airset,actouator,positioner step2:how does it...
  2. qeqe

    why must gate vale must be open &ball valve half-open duratin in test

    in testin the line in test package why gate&glob must be open and ball valve half-open?
  3. qeqe

    why must globe & gate vale be isolated from system in test(in the

    when we test the one test package ,sometimes in the end line we have gate&globe valve , we isolated the valve from line and cap the line.why cannot we close the valve and dont use cap.
  4. qeqe

    why must globe & gate vale must be open duratin in test

    in piping we full open the gate & and globe valve after that we test the line why?

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