Airgas Model N140FHF Brass Specialty High Purity High Flow Pressure Regulator With 1/2" FNPT Connection Single Stage nylon-reinforced neoprene diaphragm

nylon-reinforced neoprene diaphragm

galvanized steel with a powder-coat paint finish

These regulators have aunique design to reduce weight and make the regulatormore durable

The external nickel plating

Airgas Model N140FHF Brass Specialty High Purity High Flow Pressure Regulator With 1/2" FNPT Connection Single Stage nylon-reinforced neoprene diaphragmThis series of regulators is used for applications requiring high gas flow rates and a compact design. These regulators can handle flows up to 250 liters per minute of nitrogen with only a 5 psig pressure drop. In addition, these units will handle hydrogen flow up to 1,000 liters per minute without the resonance problems associated with other regulators in this same application.