Watts 1 1 4 740 030 FS Hot Water Relief Valve, Iron, FNPTF x FNPTF, 1 1 4 in x 1 1 2 in, 30 psi 32305 90 Degrees Standards UL For 90 Degrees Standards UL For Use With Schedule 80 PVC Conduit Material PVC Indoor Outdoor Usage Indoor Outdoor Compatible Conduit Type PVC Elbow Angle 90 Degrees Connection Orientation 90 Degrees Schedule 80 Connection Type Glue Package Quantity 1 Shape Straight Type Adapter For Use With Air Tube Connection Style Push to Connect Push to Connect Type Standard Tube Connection Gender Female O Ring Material Buna N Rubber For Tube OD 3 mm Pipe Connection Style Threaded Pipe Connection Gender Male Thread Type Universal 000 BtuH Spring Material Stainless Steel Factory Set Pressure 30 psi Operating Pressure Minimum 30 psi For Media Water Inlet Connection Type NPTF ASME Section Code Section XIII Operating Temperature Maximum 250 Degrees F Product Type Pressure Relief Valve Operating Pressure Maximum 75 psi Outlet Connection Type NPTF Inlet Connection Gender Female Outlet Connection Gender Female Operating Temperature Minimum 40 Degrees F Country of Origin United States Standards ASME Code HV