Filling Adapter / Thread Adapter Oxygen G3/4″ Residual Pressure Valve to G5/8″ Female Thread Direktkauf

Thread Adapter for Oxygen Valves G3/4″ with Residual Pressure Valve to G5/8″ Compressed Air

Oxygen cylinders are equipped with valves that include a flow protection or residual pressure valve. This additional valve, a type of non-return valve, prevents gas from escaping from the cylinder and dropping to 0 bar if the cylinder valve is accidentally opened. A residual pressure of approximately 5 bar always remains in the cylinder, allowing gas suppliers to maintain gas purity without having to evacuate the cylinder each time. To fill oxygen cylinders, this valve must be opened during the filling process. The G5/8″ 200 bar compressed air female thread allows direct filling or gas transfer using equalizing hoses with G5/8″ connections, without requiring an additional adapter from oxygen to compressed air. The set screw can be used to actuate the valve and should be adjusted individually for each cylinder.

Technical specifications of the oxygen adapter for cylinders with a residual pressure valve:

• Material: Hexagon (SW32), nickel-plated brass
• Connection A: G3/4″ female thread, oxygen valve 200 bar according to DIN 477-9
• Connection B: G5/8″ female thread, compressed air 200 bar according to DIN EN 144-2
• Adjustment screw with hex socket for actuating the residual pressure valve in the cylinder valve
• O-Ring: FPM
• Total length: 35 mm

The user must ensure that the selected valve outlet connection cannot be connected to fittings of other standards or gases in order to prevent hazardous situations (e.g. leakage, incompatibility, risk of asphyxiation, explosion hazard).