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Refrigeration Constant Pressure Valves

Product Description

Constant pressure valves are automatically operated regulating devices used within the oil management system of screw compressor packages, ensuring there is sufficient minimum differential pressure (e.g. 3 bar, 4 bar etc.) or oil injection pressure during the start-up phase and running of the screw compressor.

Sizes: 1.1/2" to 6"
Connections: Flanged & Butt Weld
Materials: Steel
Medium: Glycol-based cold brine refrigerant EN 378 p. 1, e.g. NH3, R134a, R290 (propane), R507, blends with refrigerator oil, neutral, gas and liquid media, glycol-based cold brine
Set Pressure: 1 - 25 Barg
Temperature: -20 to +120 degC Max

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