Airgas Model E444B590 Stainless Steel High Purity Two Stage Positive Seal Regulator With 1/4" FNPT Connection High Flow Pressure and semiconductor processing

and semiconductor processing

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

single-stage

along with the composite bonnets

thus not allowing any dropout regardless of differences in specific weight of the various compounds within the mixture

Airgas Model E444B590 Stainless Steel High Purity Two Stage Positive Seal Regulator With 1/4" FNPT Connection High Flow Pressure and semiconductor processingThese 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