Airgas Model E444D670 Stainless Steel High Purity Single Stage Positive Seal Regulator With 1/4" FNPT ConnectionThese single stage positive seal regulators feature convoluted, Hastelloy C 22 diaphragms that provide maximum sensitivity, minimum droop and a leak tight bonnet seal. Type 316 stainless steel internal components are ultra sonically cleaned and electropolished to a 32 Ra surface finish for applications where a contamination free flow stream is critical. Optional 15 Ra electropolished with faceseal. A rugged, mechanical linkage connecting the diaphragm

designed to regulate outlet flow

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

Stainless Steel Diaphragmseliminates outgassing associated with elastometric diaphragms

This two-stage regulator is recommended for use with non-corrosive gases in applications where an ultra-low delivery pressure is required

This regulator has an integral remote sensing pilot which yields high flow capacity with near perfect performance

Attractive nickel-plating looks good and lasts for years of service

non-corrosive gas

These unique patented general-purpose two-stage regulators are recommended for analytical non-corrosive

These nickel plated two-stage ultra-high purity regulators are recommended for non-corrosive analytical

OSHA-compliant

316 Stainless Steel Diaphragms - provide precise pressure control

along with the com-posite bonnets