REGULATEUR DE PRESSION MINIMALE

摘要

A minimum pressure valve for controlling the pressure in the compressed gas discharge line of a liquid injected gas compressor downstream of the compressor liquid separator element. The minimum pressure valve includes a closure member which is biased to the closed position by a coil spring and which includes opposed pressure surfaces which are acted on by fluid at the pressure upstream of the valve, and a pressure surface which is acted on by fluid at atmospheric pressure. The combined spring and pressure forces provide for improved valve operating characteristics to maintain a desired minimum pressure upstream of the valve and negligible pressure losses through the valve at compressor operating conditions greater than the desired minimum pressure.