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E series horizontal split type centrifugal compressor

  • E series of centrifugal compressors are usually used for transportation of air / nature gas / NO / other gas in the fields of petroleum, chemical industry, metallurgical, pharmaceutical and so on.
  • This series of centrifugal compressors are of single-section high-speed, center impeller, horizontal split type structure.
  • This series of centrifugal compressors could be driven by motors through gearboxes or directly driven by high-speed steam turbines and motors.

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Characteristics of EIZ/EIZT compressors:

  1. Serialization design and efficient three-dimensional impellers. Built-in intercooler (s) reduces length and resistance of gas flowing path to realize isothermal and high-efficient operation
  2. The compact built-in intercooler (s) has excellent noise reduction function..
  • Inlet guide vanes ensures wide operation range (from 75% to 105% of variable operation condition) to effectively reduce energy consumption.
  • Built-in spraying system realizes on-line cleaning of impellers and cooler tubes to ensure long-term stable operation and minimize downtime operation.

Shaangu booster compressor includes EZ/EBZ and EG series models. EZ series compressor is horizontal split type structure with the external interstage cooler. EBZ series is vertical split barrel type structure with external interstage cooler. EG series is integrated gear type gear compressor.

centrifugal compressors are jointly developed by overseas expert team and domestic engineers of Shaangu, which adopt mature and reliable modelling stages and advanced pneumatic calculation program, reaching international advanced technology level. And EG compressor has won the second prize of National Science and Technology Progress Award.

  • Flow rate up to 14000 m3/min,
  • Exhaust pressure up to 7.2MPa,
  • Maximum speed > 35000r/min,
  • Variable efficiency > 88%

The models of Shaangu air separation compressor trains are shown as follows:

References: As of December 2019, there are nearly 270 sets of Shaangu air separation compressor trains in operation, which accounting for over 80% of domestic market share in the field of large-scale air separation sectors.
This figure indicated the air compressors and boosters corresponding to the different air production capacities.


(×104 Nm3/h)


Oxygen Output

(×104 Nm3/h)










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