Check valve with female union ends for solvent welding, metric seriesCHECK VALVE• Connection system for solvent 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 (PVC-U) with water conveyance, drinkingwater and other food substances according to current regulations• Can be maintained with the valve body installed