110-135 PSI Air Compressor Pilot Check Valve Unloader 1/2" Compression Inlet

In stock
SKU: NSG-5-M-110-135-3383
Regular price $45.95

Conrader NSG Air Compressor Pilot / Check Valve Unloader with Muffler

This listing is for one new 110-135 PSI piloted discharge check valve/unloader valve combo. This check valve is made by Conrader in the U.S.A., and it is an NS series valve. This valve is usually used on compressors that pump less than 20 CFM and can be used on gas or electric compressors. This valve is equipped with an in-line check valve and attached to the side is a built-in piloted unloader valve set 110-135 PSI. This valve also has a muffler on the exhaust air port to quiet down the unloaded exhaust air that is released once the compressor reaches 135 PSI. On the side of the valve, it has a 1/8" female NPT port, to control the throttle on a gas engine and/or unloader valves on some pumps.


• Unloader ON/OFF: 110-135PSI
• Air Inlet: 1/2" Compression Thread Used for 1/2" OD Copper or Aluminum Tubing
• Air Outlet: 1/2" Male NPT (measures about 3/4" in diameter)
• 1/8" Side Unloader Port (measures about 3/8" in diameter)
• Exhaust Port with Muffler

This valve is set at 110-135 PSI once your compressor pumps up to 135 PSI, the unloader valve will kick in and your compressor will pump air through the muffler out to the atmosphere until your air tank pressure gets down to 110 PSI then the unloader will shut, and your compressor will pump back up.