WATTS LF174A-100-3/4 Stainless Steel Boiler Pressure Relief Valve 100 psi - for Water Heaters, HVAC Systems & Industrial Equipment Safety Protection

3/4 In Lead Free Boiler Pressure Relief Valve, 100 psi, Threaded Female Connections_This 3/4 inch lead free boiler pressure relief valve is used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment. It consists of a lead free body construction with NPT threaded female inlet and NPT threaded female outlet (drain) connections, non-metallic disc-to-metal seating, stainless steel spring, and test lever. It resists corrosive water conditions, sticking and freezing, and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief, not as an operating control. The pressure setting is 100 psi (689.5 kPa), with corresponding ratings of 1,695,000 BTU/hr._Non mechanical seat-to-disc alignment will not stick or freeze_Lead free body_Spring loaded_Automatic reseating_Specifications_Buy American Act Compliant YES