Oil Safety Valve Inlet Size 1/2 Inch Outlet Size 1/2 Inch End Connection Female Threaded x Female Threaded End to End Distance 3.24 Inch Pressure Rating 0 to 60 PSI Application Oil Supply System Applicable Standard UL Overall Diameter 2.78 Inch Features / Benefits Webster Oil Safety Valves Provide Important Protection in Oil Burner Supply Systems with Pressurized Supply Lines The Osv Relieves Pressure Strain on Fuel Pump Inlets and Seals and Prevents Tank Siphoning and Spilling Caused by Accidental Line Breaks The Osv is Mounted Close to the Burner Assembly The Osv Operates as a Pressure Reducer, with Supply Line Pressure on the Valve Inlet Side and Fuel Pump Vacuum on the Valve Outlet Side
