The F-82 is a pressure-only ASME relief valve designed for use on hot water space heating boilers, water supply heaters and storage tanks. The F-82 Safety Relief Valves are designed for use on hot water service only and are not to be used on steam. The F-82 has a female inlet and outlet . The F-82 ASME Safety Relief Valve has a factory pressure relief Settings from 30 to 150 psi. These high capacity pressure-only relief valves feature bronze bodies, silicone seat discs and stainless steel pressure springs.