Nesplon 6/I valves are designed to keep the end utilities of industrial gas lines safe; they’re fitted with flame arrestors and gas check valves. They are installed directly on the grip of torches used for flaming slabs or edges; they’re suitable for both comburent gas (oxygen) and fuel gas (propane).Nesplon/6 valves have an Ø8 mm hose connector on the inlet. The G3/8″ F threaded nut on the outlet has a right-hand thread for oxygen and a left-hand thread for propane.We recommend replacing the Nesplon 6/I valves in the case of a flashback, after 5 years from the date of installation and in any case after the time limit of 5 years plus 1 from the manufacturing date on the valve.