Tee Purge Assemblies
The tee purge is normally connected between the cylinder and the regulator. The system can be flushed with the purging gas to remove contaminants prior to start-up or after a cylinder change.

Cross Purge Assemblies
The cross purge assembly is also used between the cylinder and the regulator. In addition to the features on the tee purge, the deep purge assemblies have an inlet isolation valve and a vent valve.