Extended range: transcritical CO2 compressor models

  • New models added to Bitzer's series of semi hermetic reciprocating compressors
  • Models: 4PTC-6K, 4PTC-7K (Z), 4DTC-25K and 4CTC-30K


 Description

  • New models added to Bitzer's series of semi hermetic reciprocating compressors
  • Models: 4PTC-6K, 4PTC-7K (Z), 4DTC-25K and 4CTC-30K

Basic specifications

  • 4.3 to 25.6 m3 of displacement per hour at 50 Hz
  • Suction gas cooled motor
  • Efficient working valves, special drive gear geometry
  • Cylinder heads with separate, thermally isolated high and low pressure chambers
  • Housing with high pressure strength and no bottom plate
  • Wear-resistant drive gear
  • Wide application range (sub and transcritical operation possible)
  • 4 cylinder design (quiet, low vibration)

Models for lower displacements: 4PTC-6K and 4PTC-7K (Z)
Models for higher displacements: 4DTC-25K and 4CTC-30K
 

Maximum permissible pressure levels for 50 Hz:

  • High pressure side up to 160 bar
  • Low pressure side up to 100 bar

Maximum permissible pressure levels for 60 Hz:

  • High pressure side up to 2321 psig
  • Low pressure side up to 1450 psig

Advantages

  • The extended capacity range now covers displacements from 4.3 m3/h to 25.6 m3/h
  • Housing with high pressure strength and no bottom plate
  • Maximum permissible pressure levels : High pressure side up to 160 bar / Low pressure side up to 100 bar
  • Wear-resistant drive gear with further developed multilayer bearings
  • High energy efficiency suction gas-cooled motor
  • Very suitable for speed regulation
  • Very efficient working valves, special drive gear geometry
  • Cylinder heads with separate, thermally isolated high and low pressure chambers
  • Wide application range: sub- and transcritical operation possible
  • 4 cylinder design: quiet and low vibration, particularly well suited to the operation with frequency inverter in order to increase and control capacity

Application

  • Commercial refrigeration


MORE INFORMATION

CO2 Semi-Hermetic Reciprocating compressors 50Hz
CO2 Semi-Hermetic Reciprocating compressor 60Hz



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