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Purge Assemblies
The importance of purging
When choosing a regulator system for handling highly toxic, corrosive or high purity gases, the importance of purging should not be forgotten, By using the correct purging equipment and procedures one can prevent the possibility of accidental exposure to toxic gas or ensure that equipment is not subjected to corrosive atmospheres. In addition, proper purge procedures will enable gas purity to be maintained, from the cylinder to the point of use, with no degradation or decomposition.
Two methods are commonly used in purging pressure regulators and associated equipment: diffusion purging and dilution purging.
- Purging flushes unwanted gas from the system by a continious flow of purge gas, usually from one end to the other, using a body or tee purge.
Read more about diffusion
- Purging using a cross purge involves sealing off the system at some convenient point and then filling it with a positive pressure of purge gas. Read more about dilution
- Prior to use, it is recommended that you familiarise yourself with the key components of the body purge.
Read more about using a body purge
