snippet: These compact cross-purge assemblies provide effective purging during cylinder change out. Hazardous gas traces are eliminated before opening the cylinder connection, and atmospheric gases are removed after reconnection. The quarter-turn diaphragm valves allow easy, fast purge cycles, while the color-coded lever handles immediately indicate gas flow and mode of operation. These assemblies are also designed to prolong the service life of regulators and other gas system components. Each cross-purge assembly incorporates the use of an integrated check valve to prevent backflow of process gas into the purge line.

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