ARO R37121-100 Industrial Pneumatic Pressure Regulator

The ARO R37121-100 is a 1/4" NPT relieving regulator from the ARO-Flo 1000 Series that provides precise pneumatic pressure control up to 140 psi, with a 250 psi maximum inlet and a high-flow capacity of 59 SCFM. This compact unit features an aluminum regulator body, a brass and nitrile valve, a nitrile diaphragm with an acetal spacer, and an acetal knob, all built for durability in industrial environments; it also includes a 1/8" gauge port (gauge not included) for monitoring and a panel nut for easy mounting. The regulator is designed as a modular, no-gauge configuration suitable for automation and tooling applications, delivering a 0–140 psi control range and a relieving exhaust to atmosphere, backed by a 2-year warranty.