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Piping Info : Vent and Drain

Ganesh Ramakrishnan
Ganesh Ramakrishnan over 18 years ago
 
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  • Ganesh Ramakrishnan
    Ganesh Ramakrishnan over 18 years ago
    Process Vent

    Take out air remaining in piping systems before and while injecting the testing fluid into the system for pressure testing. It also use to suck out air remained in a pump before starting operation. (when the pump suction line has air pockets)

    Process Drain

    Provided to discharge the fluid (liquid) existing in the piping system. It also use for injecting pressure testing fluid into equipment/ piping.
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  • Kuan Yu Keat
    Kuan Yu Keat over 17 years ago
    Does anyone has more info on this? I'm still quite confuse how to place it.
    1)I know vent has to placed at high point while drain at low point, but does it really required at every high and low point, or just the highest or lowest in a system or just somewhere near the equipment

    2) Does the vent and drain still required after the hydro test?

    3) If yes, did maintainence need all the vent and drain as during hydro test or we can seal off some of them?
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  • Raymond Metselaar
    Raymond Metselaar over 17 years ago
    See www.pipingdesigners.com for info under the forum.
    hth
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  • Admin
    Admin over 9 years ago
    Drain is installed in low point of the Pipe System
    Vent is installed in High point of Pipe System
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