Check valve with steel core backing ring, PP/FRP coated, drilled ANSI B16.5 cl.150 #FFCHECK VALVE• Connection system for weld, threaded and flanged joints• No metal parts in contact with the fluid• Piston with counterweight able to work with high intensity fluid• Limited pressure drop. Only minimum back pressure is required for thehermetic seal• Valve material compatibility (PP-H) with water conveyance, drinking waterand other food substances according to current regulations• Can be maintained with the valve body installed