Pressure Safety Relief Valve; Type 1-Piece, Boiler; Applicable Standard ASME Section IV, CRN #0G8547.5C; Inlet Size 3"; Outlet Size 3"; End Connection Male Threaded x Female Threaded; Body Material ASTM B584 Bronze; Spring Material Stainless Steel; Seat Material Chrome Plated; Disc Material PTFE Coated; Set Pressure Range 5 to 15 PSI; Inclusions/Features Seat, Disc, Rust Proofed Spring, PTFE Coated EPDM O-Ring for Positive Seal, 3/8" NPT Side Tapping for Drain Connection; Application Medium and Large Size Commercial and Industrial Heating Boiler; Dimension 7.87" Width x 9.37" Height; Weight 17 Lb; Optional Accessories Test Tag; Warranty 5 Year