Airgas Model C445D660 Supelcoat™ Coated 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

with its 316 stainless steeldiaphragms

In addition

single-stage

The valve is built into the regulator body reducing the gas path

6-gallon capacity

Waste can is made of lead-free

A sintered brass filter protects internal parts

The Airgas® Life Science Series System is an automatic switchover system designed to supply a continuous supply of high purity

mechanical linkage connecting the diaphragm and valve stem significantly reduces the possibility of pressure creep

and process applications where precise pressure control is not required

provides precise pressure control from fullcylinder to almost empty

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