This 1 1/4 inch 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 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. 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 45 psi (3.1 bar), with corresponding high ratings from 650,000 to 14,370,000 BTU/hr.
Features
Water seal of high temperature resisting material isolates spring working parts from water during relief
Non mechanical seat-to-disc alignment will not stick or freeze
Water can't be trapped and sediment can't foul seat
Bronze body safety relief valves for pressure protection only of all types of hot water heating boiler equipment
Set pressure 45 psi
Features a flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve
Requires purchase of activation kit to activate sensor
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