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I am trying to build my own Magnehelic leak tester just for the fun of it and the experience. I have all of the necessary parts: Dwyer magnehelic gauge, Dwyer flowmeter, needle valve, aquarium air pump, tubing etc.
Can anyone help me with the routing of the air flow? I know that the same initial air pressure needs to be applied to the high pressure and low pressure sides of the gauge (via the instrument). Is there a Y adapter required that permits only a 1 way flow of air so the two pressures can't equalize before the gauge can read them? Also does the type of tubing make a difference? Any help will be appreciated.
John
Can anyone help me with the routing of the air flow? I know that the same initial air pressure needs to be applied to the high pressure and low pressure sides of the gauge (via the instrument). Is there a Y adapter required that permits only a 1 way flow of air so the two pressures can't equalize before the gauge can read them? Also does the type of tubing make a difference? Any help will be appreciated.
John