Have a system without a relief valve?
This is the same high flow pressure relief valve that comes standard on all Redline Air Systems.
A relief valve can help protect your Engine from a damaging over pressure in the event of either a regulator malfunction or an accidental operator over-adjustment of the regulator.
Requires a 1/8 NPT port on the output side of your air system.
These valves are +- 15% Reliably allows output pressure up to 140 psi before it starts to vent.