check vavle

by Mack
(Juneau, AK)

Does my compressor need a check valve? I am building an air compressor. I have an old tank that I refurbished, with a new compressor (two stage) and motor. I am trying to plumb the compressor to the tank and I found out that the connection at the tank has an internal check valve. I want to install 1/2 inch tubing from the compressor to the tank, because the old tubing is 3/8 inch. The new compressor is much bigger and it has 1/2 inch NPT outlet, so I believe that it needs bigger piping. I am basically looking to discard the check valve fitting, because it is too small for the new pipe size. Will this work without a check?

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Bill says...

No, it won't. Without the check valve your tank full of air would bleed to atmosphere every time your compressor stopped.

Read the page on Unloader Valves if you wish more info on this issue.

Cheers,

Bill



Thank you,

Mack Gassan