Description

This 1" NPT brass in-tank check valve is designed to prevent air backflow from your tank to the compressor pump, helping maintain system pressure and prolong equipment life. Commonly installed directly into the compressor tank, the female NPT end connects to the compressor's discharge line, while the male NPT threads into the tank itself. An integrated 1/8" female NPT side port allows for an unloader valve connection—typically routed from your pressure switch. If your application does not use an unloader, the port can easily be plugged.