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If used in corrosive service
calibration kits
These regulators are nickel-plated to maintain their appearance through years of service
Direct cylinder connection is only permissible when using liquefied compressed gases with vapor pressures below 250 psig such as 1
Airgas Model N245D320 Brass High Purity Single Stage Pressure Regulator With 1/4” FNPT Connection And Non-Lubricated Check Valve Switchover If used in corrosive serviceThese brass, single stage, high purity regulators are recommended for non corrosive analytical and process applications where precise flow control is not critical. A specially designed, convoluted, stainless steel diaphragm with metal to metal seals provides good regulating performance and maximum purity integrity without the need for a soft seal, which often can be a source of contamination. These regulators come with a CGA nipple that has a special