Airgas Model E444B660 Stainless Steel High Purity Two Stage Positive Seal Regulator With 1/4" FNPT 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

This series of high-purity

These regulators also have a proprietary Supelcoat™ coating that prevent interaction of corrosive and volatile compounds in high purity gas mixtures used in EPA analysis

This creates consistencies in processes and extendscolumn life in GC applications

where precise pressure control and low flow rates are required

The 820 Series is configurable for most applications

this regulator is perfect for non-corrosive

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

The regulator has a unique design to reduce weight and make the regulator more durabe

single-stage general-purpose and analytical series regulators are ideally suited for lecture bottles and other small cylinders

Other CGA-connections (110 or 170 CGA’s) are available upon request

These regulators are recommended for use on low-pressure pipelines serving gas chromatographs

06 psig for every 100 psig of inlet pressure decay