BITZER screw compressors for applications with R717

• Compressor types: OS.A53 .. OS.A95
• Single-stage compressors (displacement of 84 .. 1015 m³/h – in parallel operation up to 4060 m³/h) for high, medium and low temperature application.
• Options for low temperature application: single-stage operation (also with economiser), 2-stage operation with booster or high pressure compressors.
• Design characteristics:
• Coupling drive (direct motor mounting via coupling housing)
• Rotors made of high-quality spheroidal graphite iron
• Highly efficient rotor profile with a tooth ratio 5:6, 5;7 or 4:6
• Generously sized roller bearings (tandem thrust bearings)
• Oil and suction gas cooled shaft seal with metal bellows
• Can be easily connected in parallel (is especially efficient in part load operation, high operating reliability)
• Easy maintenance
• OS.A95 and as an option for OS.A85 with integrated compressor module with extended protection concept and activation by means of sliders

• Accessories:
• Vertical primary and secondary oil separators (DP-500).
• Vertical combined oil separators (with integrated secondary oil separating stage) (DP-500)
• Horizontal combined oil separators in special ammonia version (DP-503)
• Water cooled oil coolers
• Liquid receiver (DP-331)

• For further information, performance data and application limits of the screw compressors, please refer to the brochures SP-500, SP-510, SP-520 or to BITZER SOFTWARE.
• Application limits for OS.A53 .. OS.A85 and OS.A95:

with additional oil pump