Watts 0121400 1/2" Relief Valve 45-100 PSI

The Watts 0121400 Relief Valve is an essential safety part that is used to prevent the HVAC systems from getting pressurized. This 1/2-inch valve, which is of LFBP30 series and works under a pressure range of 45-100 PSI, is designed to open and release pressure in the event of pressure build-up to avoid disastrous effects on different HVAC equipment. In closed hydronic heating systems water expands when heated and this leads to dangerous pressure build up. This part is specifically designed to reduce this risk. Whenever the internal system pressure rises above the set point, a spring loaded system in the valve is triggered to open a passage for the pressure to be released.