Watts BF 03 131 1G M2 4 Part of the BF 03 Series Tactile Paving Specifications Kit Type Relief Valve Specifications Kit Type Relief Valve Rubber Parts Kit Lead Free YES Product Group BACKFLOW KITS UPC 098268459487 Its robust construction and versatile design features make it ideal for use where structural compatibility Specifications Body Material Ductile Iron Brand Watts Buy American Act Compliant NO Class Rating 125 or 150 Control Type Gear Operator CV Rating 600 GPM Disc Material 316 Stainless Steel EAN 098268604191 Inlet Connection Size 4 IN Inlet Connection Type Lug Lead Free YES Maximum Operating Temperature Fahrenheit 248 Maximum Working Pressure PSI 200 Minimum Temperature Fahrenheit 33 Operating Torque Dry 644 in lbs Operating Torque Wet 390 in lbs Outlet Connection Size 4 IN Outlet Connection Type Lug Part Number 0525617 Seat Material EPDM Series BF 03 Silicone Free Yes Stem Shaft Material 316 Stainless Steel Valve Style Lug Specification Sheet BF 03 M2 a stainless steel shaft