Airgas Model N115H346 Brass High Delivery Pressure Single Stage Regulator With 1/4" FNPT Connection Low Pressure these units will handle hydrogen

these units will handle hydrogen flow up to 1

Because these regulators are not typically recommended for direct connection to cylinders

The metal-to-metal diaphragm seal prevents contamination by eliminating the need for a soft seal and provides a leak-rate design of less than 2 x 10–8ccs helium

The Airgas® heavy-duty high-pressure cylinder regulator’s piston sensor design provides structural reliability in high-pressure applications

Airgas Model N115H346 Brass High Delivery Pressure Single Stage Regulator With 1/4" FNPT Connection Low Pressure these units will handle hydrogenDesigned for a wide range of pressure settings, these single stage regulators are recommended for use in petroleum field applications, research laboratories for hydrogenation, catalytic reduction, accelerated age testing, calorimetric testing, component testing, and pressure testing applications. These regulators feature a rugged brass piston, which provides increased safety and reliability at high delivery pressures. A 25 micron inlet filter protects