YORK Refrigeration?s range of SAB 163 screw compressors is available in two versions covering the capacity range between 635 and 952 m³/h at 50 Hz (764 and 1145 m³/h at 60 Hz).

The SAB 163 screw compressors are the ideal choice for a whole range of marine and industrial applications, where reliability and low operating costs are prime requirements. Ammonia, R22, R134a or other HFCs are available as refrigerant.

The SAB 163 series has a number of unique features that contribute to safe operation, reduced environmental impact and high reliability:

• Suction filter, suction check valve, oil filter and oil float switch are built into the compressor it self, minimizing the exterior piping and eliminating leakage risk
• Integrated oil float switch ensuring proper lubrication
• The 4+6 rotor profiles provide smooth and stable operation. These are available in either male or female versions
• SAB 163 screw compressors are manufactured to ensure long working lives. A solid iron casting manufactured at YORK Refrigeration's own foundry ensures extremely low vibration levels
• A unique combination of roller and ball bearings minimizes friction losses
• Hydraulically loaded balance pistons reduce the axial forces, extending the service life of the bearings
• Steeples capacity regulation 10-100%
• Manual or automatic regulation of the variable volume ratio (V_i)
• Compressor overflow valve ? balanced type. The integrated oil separator/frame concept is unique, and means that the temperature impact from the oil separator does not influence the compressor/motor alignment. Major features are:
• Horizontal oil separator with low oil carry-over (5-30 ppm depending on operating conditions and the oil used)
• Oil reservoir with heating element
• Piping produced using CNC bending equipment minimizes welding and pressure losses
• Compressor/motor base frames robot-welded and ground to ensure easy alignment
• Unisab II control and monitoring system
• Suction side stop valve
• Discharge side stop valve
• Oil pump with service valves for pre-lubrication and lubrication at low differential pressures
• Extremely low noise level - see table.