Airgas Model C445F540 Stainless Steel High Purity Two Stage Pressure Regulator With 1/4" FNPT Connection And Threadless Seat High Flow Pressure They are also equipped with

They are also equipped with a reverse-flow check valve to prevent backflow of gas into the regulator on the outlet

Cortina 03-864 - 18" Stop/Slow Aluminum Paddle - Non-Reflective w/ 8" Wood Handle

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

The Airgas® Life Science Series System is an automatic switchover system designed to supply a continuous supply of high purity

Cortina 03-862 - 18" Stop/Slow Aluminum Paddle - Non-Reflective w/ 72" Wood Handle

Airgas Model C445F540 Stainless Steel High Purity Two Stage Pressure Regulator With 1/4" FNPT Connection And Threadless Seat High Flow Pressure They are also equipped withThis series of 316 stainless steel two stage high purity regulators is designed for non corrosive analytical, mildly corrosive and process applications requiring precise, stable delivery pressure control. The two stage design yields a delivery pressure change of less than 0. 01 100 psi inlet change. Convoluted Hastelloy C 22 diaphragms provide excellent regulating characteristics and allow for internal vacuum purging. The metal to metal diaphragm seal