PILOT CROSS UNLOADER VALVE MOUNTING BOSS AIR COMPRESSOR, 1/4" FEMALE NPT FNPT (140-175 PSI)

Pilot valves operate in a set pressure range. The range has an unload setting and a load setting. As a compressor operates in this range, it is said to by cycling. At the unload setting, the pilot valve opens and actuates another device (throttle control, discharge valve). At the load setting, the pilot valve closes and returns the compressor to normal operation.Pilot Unloader Valve For Air Compressors with Mounting BossManual Hand Unloader1/4" FNPT Inlet & 1/8" FNPT Discharge Outlet, 30-40 PSI Adjustable Up or Down3/8" - 16 UNC 2B Mounting boss opposite side of the outlet250 PSI MAX OPERATING PRESSURE, 15f to 350f Temp rating, Pilot Valve