The ARP is a modular style, direct operated precision regulator.  A locking adjustment knob allows the pressure to be set, and then locked to prevent accidental setting changes. The ARP20/30/40 series is available with a back flow function that exhausts the air pressure in the outlet side reliably and quickly.  Special applications include (10-) clean room compliant, (20-)copper-free, fluorine-free, and (21-) clean room compliant, copper-free, fluorine-free and silicon-free.

Series IR Precision Regulators are designed to be compact and light weight. The maximum set pressure has been expanded from the conventional 0.7MPa to 0.8MPa. Relief flow has been increased by nearly 5 times (compared to SMC IR201, IR401). The optional bracket and pressure gauge can be mounted on either the front or back of the unit.