Watts 740 Boiler Pressure Relief Valve

Boiler Pressure Relief Valve; Type Lever; Inlet Size 1-1/2 Inch; Outlet Size 2 Inch; End Connection Female Threaded x Female Threaded; Body Material Iron; Spring Material Stainless Steel; Seat Material Metal; Disc Material Non-Metallic; Set Pressure Range 30 PSI; Temperature Rating 250 Deg F; Pressure Rating 30 to 75 PSI; Inclusions/Features Seat Located Above Drain, Non-Metallic Disc to Metal Seat, Test Lever, Expanded Outlet; Application Hot Water Heating Boiler; Applicable Standard ASME, NB, HV, MIL-V-18634B, Type I, Class 3A, Style B; Capacity 925000 to 5909000 BTU/Hour; Overall Dimension 5-1/4 Inch Width x 9-1/4 Inch Height