Steam Safety Valve; Type Low Pressure; Inlet Size 1 Inch; Outlet Size 1 Inch; End Connection Male Threaded x Female Threaded; Body Material ASTM B584 Bronze; Spring Material Stainless Steel; Seat Material Modified TFE; Set Pressure Range 15 PSIG; Temperature Rating 250 Deg F; Inclusions/Features Flat Seat, PTFE Faced Disc, Positive Drainage; Application Steam Heating Boiler System; Applicable Standard ASME, CRN 0G8547.5C, HV, NB, ISO 9001; Capacity 643 Pound/Hour