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1/2" MNPT Compressor Tank Check Valve

3/8" male compression tube
Air flow of 20 standard cubic feet per minute
Maximum working pressure of 450 pounds per square inch
Maximum temperature of 400 degrees Fahrenheit
1/2" male national pipe thread

 These 1/2" MNPT tank check valves are used to keep air volume and pressure from escaping into the compressor heads while not operating. Compressor tank check valves are made up of a brass body with a Teflon poppet.