Airgas Model E444B590 Stainless Steel High Purity Two Stage Positive Seal Regulator With 1/4" FNPT Connection High Flow Pressure along with the composite bonnets

along with the composite bonnets

These single-stage regulators are designed for mildly corrosive gases that attack brass or copper-bearing alloys

provides precise pressure control from full cylinder to almost empty

The check valve cylinder connection prevents air and contaminants from entering the gas stream during cylinder change out

Airgas Model E444B590 Stainless Steel High Purity Two Stage Positive Seal Regulator With 1/4" FNPT Connection High Flow Pressure along with the composite bonnetsThese two 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