Watts 0915620|WW0915620 - 1/2 111-175

This 1/2 inch pressure relief valve is designed for residential hot water supply applications and provides pressure relief protection only against thermal expansion in water. This valve consists of a bronze body with 1/2 inch NPT threaded male inlet and 1/2 inch NPT threaded female (drain) outlet, and stainless steel pressure spring. The pressure relief is set at 175 psi (12.07 bar).