16937-0150 - 1" FVX-5C Temperature and Pressure Relief Valve, Female InletSpecification Sheet Cash Acme 16937 0150 1" FVX 5C Temperature and Pressure Relief Valve, Female Inlet The Cash Acme FVX Series combination temperature and pressure relief valves are designed to offer high capacity protection for domestic and commercial water heating devices. The Cash Acme FVX Series is fully automatic, and the valves reseat after either temperature or pressure relief. The FVX Series Valves have a standard factory pressure relief