DIN 477-6
According to DIN 477-6 standard with W21.8x1/14 thread for argon, carbon dioxide, helium, and many more.
Thread adapter for filling and withdrawing cylinders with noble gas, carbon dioxide, argon, or helium valves 200 bar with W21.8 and residual pressure valve to compressed air G5/8" 200 bar female thread.
Filling adapter for carbonic acid for filling CO2 and argon cylinders with valves according to DIN 477-6 which have a flow-off protection/residual pressure valve. The thread W21.8 is used for all gas cylinder valves that are used for shielding gas welding, argon, helium, carbonic acid and argon mixed gases.
Thread adapter noble gas W21.8 male thread – noble gas W21.8 male thread, double nipple for connecting welding gas fittings for argon, helium, carbon dioxide, …