Watts 174A-3/4-40 Relief Valve 3/4

Product Features

• Boiler pressure relief valves are 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 bronze 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
• Series 174A 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 and shall not be used as an operating control
• For pressure protection of hot water heating boilers