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  1. bowman30

    Instrument air consumption calculation

    thank you both! maybe i'm not right! but i think "three way solenoid valve" consumes air when it doesn't energize on/off valve!
  2. bowman30

    Instrument air consumption calculation

    Hi guys, As you know, on/off valves consume air in start-up / shutdown condition. My supervisor believes because these valves will not work simultaneously, considering 10% of them in air consumption calculation are enough. But I think because they are "fail to close" and have "three way solenoid...

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