Watts 3L Pressure Relief Valve, 3/4 in, NPT, Brass Body

Series 3L pressure relief valves are used in residential applications to protect against excessive pressure on domestic storage tanks, tankless water heaters and solar heating applications. They have a bronze body construction with NPT threaded male inlet and NPT threaded female (drain) outlet connections, stainless steel spring and test lever. Model 3L-Z9 has a stainless steel lever and pin for outside solar applications. ANSI Z21.22 approved, ASME rated and design certified and listed by CSA. Can be used with Watts Series 210 gas shutoff valve.