Ingersoll Rand 23782089 Minimum Pressure Valve Assembly

The Ingersoll Rand 23782089 is a minimum pressure valve (MPV) assembly designed for rotary screw air compressors. It functions to maintain minimum receiver pressure (0.35–0.45 MPa) during operation, ensuring proper lubrication circulation and oil separator efficiency while preventing reverse air flow upon shutdown. This component is engineered for Ingersoll Rand R-series (R37i, R45i, R55i) and V-series (V110-V160) compressors rated 37–55 kW (110–160 HP). The valve assembly incorporates a spring-loaded piston, elastomeric seals, and a check valve mechanism constructed from brass and steel materials compatible with synthetic compressor lubricants. The associated service kit includes replacement springs, internal valve seals, and O-rings for scheduled maintenance rebuilds.