Corrosive Service Regulator - Airgas.com

Specialty Gas Regulators
Corrosive Service Pressure Regulators
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View these Corrosive Service Pressure Regulators in the Specialty Gas Equipment Manual here(PDF).

Corrosive Service Pressure Regulators

Economy Model-These single-stage regulators are designed for mildly corrosive gases that attack brass or copper-bearing alloys. Each regulator features a large diaphragm which provides excellent performance and precise pressure control. These regulators are constructed of aluminum alloy and are equipped with stainless steel gauges, a sintered stainless steel inlet filter and a stainless steel instrument valve.

Standard Model- These regulators are recommended for use with acid-forming gases where brass andcopper-free systems are required. The proven, lowmaintenance design features a PCTFE® seat for widemedia compatibility.

Note: A Cross-Purge Assembly must be used in conjunction with these models in order to ensure effective purging of hazardous gas traces during cylinder change out.

Deluxe Model-Designed for the pressure control of corrosive halogen gases, the deluxe corrosive service regulators have all-wetted parts of either PCTFE®, Iconel® or Monel materials and are protectedinternally by a sintered Monel filter.

Note: A Cross-Purge Assembly must be used in conjunction with these models in order to ensure effective purging of hazardous gas traces during cylinder change out.

Cross-Purge Assemblies- 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 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.

Tee-Purge Assemblies- These Airgas® corrosive gas tee-purge assemblies provide effective purging through the regulator during cylinder changeout. There must be a vent downstream of the regulator to vent the mixed gas. Moisture entering the gas stream during cylinder changeout reacts with the corrosive gas to cause regulator failure. If the system does not have a vent, we recommend an Airgas® cross purge assembly be used. The packless diaphragm valves ensure positive shut-off and leak tight operation.