This 3/4 in pressure safety relief valve is used in commercial and industrial applications for low pressure, steam heating boilers and process equipment. It consists of a bronze body construction with NPT threaded male inlet and threaded female outlet (drain) connection, stainless steel spring, a top-guided stem and a non-stick PTFE disc-to-metal seating. The pressure relief is set at 30 PSI (2.1 BAR).