atlas copco ga7 (1998)
Question
Installing a used ga7 compressor. Should a check valve be installed at the tank or not? I know it reads the air pressure at the compressor instead of at the tank like my old piston compressor. Your site is great to have. Thank you for your time.
1 Answer
Hi,
There's no need for a check valve!
Actually, it's much better to install it without a check valve, because it can screw-up the control system, since it can't read the system (tank) pressure correctly when there's a check-valve between it.
And, there's already a check valve inside the compressor, it's called the 'minimum pressure valve' and it sits on top of the separator vessel inside your compressor!
Good luck!
Cas
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