WEH® Connector TW49 for filling of gas cylinders with Pin-Index system, for medical oxygen, clamping lever actuation, max. 250 bar


The WEH® TW49 filling connector has been specially developed for filling of gas cylinders using a pin-index system and is suitable for pin-index cylinder valves without hand wheels and manometers.

Operating is quite simple:
Just place the quick connector onto the valve, actuate the clamping lever and the pressure-tight connection is established. The connection is made in seconds and without the need for laborious screwing.

The pressure-assisted piston ensures a secure connection, as it is not possible to remove the filling connector while it is under pressure. This ensures the highest possible level of safety for the operator.

The TW49 is very easy to handle. It can be switched from right-handed to left-handed operation, and also allows you to re-configure the clamping lever to the operator’s individual preferences.

Save time and increase your productivity by using this unique pin-index connector. This quick connector is available for gas cylinder valves conforming to CGA 870, and for other valves upon request. Connectors for oxygen applications are oxygen cleaned, and are free of oils and greases.

Max. allowable operating pressure PS
250 bar (3,600 psi)
Temperature range
+5 °C up to +60 °C (O₂)
Medical oxygen (others on request)
Media inlet B1
NPT 1/4" male thread
Nominal pressure (PN)
200 bar (3,000 psi)
Manual actuation via clamping lever
Corrosion resistant stainless steel and brass
Sealing material
Conformity / Tests / Approvals
Type approval for suitability against adiabatic compression available
Part no.
Marketing Features
  • Compact design
  • Connection in seconds
  • For Pin-Index connections acc. to CGA 870
    (others on request)
  • High-grade materials
  • No hand tightening required
  • Pressure-assisted piston prevents accidental disconnection under pressure
  • Suitable for right or left handed operation

Quick Connector for filling of gas cylinders with Pin-Index system.

CAD Files
Data sheets
Data sheet EN 236 KB
Data sheet DE 236 KB
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