Series 415 Steam Safety Relief Valves are used in commercial and industrial applications for low-pressure, steam heating boilers and process equipment. It consists of a brass body (size 1/4 in.), or a bronze body (sizes 1, 1 1/4, 1 1/2 in.) construction with NPT threaded male inlet and threaded female outlet (drain) connection, stainless steel spring, a top-guided stem, and a non-stick Teflon disc-to-metal seating. Model 415SC has satin chrome finish. Model 415L has low pressure setting at 8psi (55kPa) for pressure cookers and steam cleaning equipment. ASME Section IV at 15psi (103.4 kPa) set point.