Airgas Model C645F580 Stainless Steel High Purity Two Stage Pressure Regulator With 1/4" FNPT Connection And Threaded SeatThis series of two stage, high purity 316 stainless steel regulators is designed for non corrosive analytical and process applications requiring precise, stable delivery pressure control. The two stage design yields a delivery pressure change of less than 0. 04 100 psi inlet change. Convoluted 316 stainless steel diaphragms provide excellent regulating characteristics and corrosion resistance, and the threaded seat design allows for internal vacuum

these regulators feature a built-in

These regulators also have a proprietary Supelcoat™ coating that prevent interaction of corrosive and volatile compounds in high purity gas mixtures used in EPA analysis

low maintenance design features a PCTFE seat for wide media compatibility

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

research sampling systems

Specifications for this item

A sintered brass filter protects internal parts

or a stainless steel model for corrosive service

An automatic reseating relief valve protects regulator components from over pressurization

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 10–8ccs helium

Convoluted stainless steel diaphragms with metal-to-metal seals provide excellent regulating characteristics and allow for internal vacuum purging

with its 316 stainless steel diaphragms