Watts 0011740|WW0011740 - 3/4 3L-150-Z9

This 3/4 inch pressure relief valve is used in residential applications to protect against excessive pressure on storage tanks and tankless water heaters used in outside solar applications. It consists of a brass body construction with NPT threaded male inlet and NPT threaded female (drain) outlet, stainless steel test lever, pin and spring. It is ANSI Z21.22 approved, ASME rated and design certified and listed by CSA. The pressure relief is set at 150 psi (10.3 bar).