Airgas Model E444B590 Stainless Steel High Purity Two Stage Positive Seal Regulator With 1/4" FNPT Connection High Flow Pressure The check valve cylinder connection

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

The two-stage design yields a delivery pressure of less than 0

This series is ideally suited for chromatographiccarrier gas applications including FID

Made to order: may require longer lead time

Specially designed lid opens no more than 60 degrees and stays closed when not in use

Airgas Model E444B590 Stainless Steel High Purity Two Stage Positive Seal Regulator With 1/4" FNPT Connection High Flow Pressure The check valve cylinder connectionThese 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