Airgas Model N245G540 Brass High Purity Single Stage Pressure Regulator With 1/4” FNPT Connection And Non-Lubricated Check Valve Two Stage They are also equipped with

They are also equipped with a reverse-flow check valve to prevent backflow of gas into the regulator on the outlet

Cortina 03-824CB - Cone Bar

single-stage general-purpose and analytical series regulators are ideally suited for lecture bottles and other small cylinders

In addition

convoluted Hastelloy® C-22 diaphragm provides good regulating performance and maximum purity integrity without the need for a soft seal

Airgas Model N245G540 Brass High Purity Single Stage Pressure Regulator With 1/4” FNPT Connection And Non-Lubricated Check Valve Two Stage They are also equipped withThese 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