Watts 3/4 in. FNPT Brass Pressure Relief Valve 3/4 in. FNPT 1 pc

Series 335 ASME rated Boiler Pressure Relief Valves were developed to fill the hydronic industry's need for a smaller valve for OEM use on popular size boilers up to 510,000 BTU at 30psi (2.11 bar). The compact design, all bronze construction and modern appearance make them an ideal choice for a wide variety of smaller size OEM boilers. ASME Section IV at 30 psi set point.