Airgas Model C445F350 Stainless Steel High Purity Two Stage Pressure Regulator With 1/4" FNPT Connection And Threadless SeatThis series of 316 stainless steel two stage high purity regulators is designed for non corrosive analytical, mildly corrosive and process applications requiring precise, stable delivery pressure control. The two stage design yields a delivery pressure change of less than 0. 01 100 psi inlet change. Convoluted Hastelloy C 22 diaphragms provide excellent regulating characteristics and allow for internal vacuum purging. The metal to metal diaphragm seal

mildly corrosive and process applications where precise flow control is not critical

these regulators are equipped with a special pressure gauge that features a red warning to indicate unsafe delivery pressure

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

Scaffolding

These regulators are recommended for non-corrosive analytical and process applications

delivery pressure control

Each single-stage positive-seal regulator is designed with two 10 x 32 UNF-threaded body holes for bracket or panel mounting

Two 10 x 32 UNF-threaded holes in the body allow for bracket or external panel mounting

A preset safety relief valve makes these regulators suitable for use only with non-corrosive gases

extending regulator service life while also reducing velocity of gas when opening high-pressure cylinder valves

and process applications where precise pressure control is not required

It is recommended to be located as close as possible to the pressure point to maintain constant pressure