Airgas Model C441A Stainless Steel High Purity Single Stage Line Regulator With 1/4" FNPT Connection And Threadless Seat Single Stage The needle valve model has

The needle valve model has the valve built into the regulator body reducing the gas path

A 25-micron inlet filter protects internal components

Convoluted 316 stainless steel diaphragms provide excellent regulating characteristics and corrosion resistance

along with the composite bonnets

The 820 Series is configurable for most applications

Airgas Model C441A Stainless Steel High Purity Single Stage Line Regulator With 1/4" FNPT Connection And Threadless Seat Single Stage The needle valve model hasThis series of 316 stainless steel high purity, single stage line regulators is recommended for applications where diffusion resistance is required. These regulators are recommended for use on low pressure pipelines serving gas chromatographs, mass spectrometers, research sampling systems, and semiconductor processing. The specially designed, convoluted Hastelloy C 22 diaphragm provides accurate, stable delivery pressure and is capable of withstanding