The Sporlan Controls 149037 ORIT-PI-39S Pressure Regulating Valve is an evaporator pressure regulator designed for commercial air conditioning and refrigeration systems. Featuring 1-1/8-inch connections and an adjustable pressure range of 0–100 PSI, it regulates refrigerant flow to help maintain the desired evaporator pressure and temperature. This valve is suitable for refrigeration ... https://www.partshnc.com/149037-sporlan-controls-orit-pi-39s-pressure-indicator-1-1-8-0-100-psi