Airgas Model N245G320 Brass High Purity Single Stage Pressure Regulator With 1/4” FNPT Connection And Non-Lubricated Check ValveThese 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

The metal-to-metal diaphragm seal prevents contamination by eliminating the need for a soft seal and provides a leak-rate design of less than 2 x 10–8 ccs helium

The optional bonnet vent adapter allows venting of hazardous gases in the event of diaphragm failure

In addition

These have a unique internal design to ensure all surfaces are continually swept

this organic coating provides a complete inert surface

this regulator is perfect for non-corrosive

The two-stage design yields a delivery pressure change of less than 0

01/100 psi inlet change

provides precise pressure control from full cylinder to almost empty

andnon-corrosive gas mixtures for analytical instrumentation

These single-stage positive-seal regulators feature convoluted

catalytic reduction