Discription of Bock HGZ7 Two Stage Semi-hermetic Compressor

A two-stage variant based on the Bock HG semi-hermetic 6-cylinder range is available for extended use in the domain of deep-freezing.
The two stage system consists of: Liquid subcooler、Re-injection valve、Solenoid valve、Sight glass、Filter drier
 

Special features of Bock HGZ7 Two Stage Semi-hermetic Compressor

6-cylinder design
LP/HP stage ratio 2:1
2-stage operation with liquid subcooler
Re-injection valve adapted to refrigerant and application
Extremely reliable and economic compressor design
 

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Bock HGZ7 Two Stage Semi-hermetic Compressor

HGZ7/1620-4 R22, HGZ7/1860-4 R22, HGZ7/2110-4 R22

Bock HGZ7 Two Stage Semi-hermetic Compressors used in Movable quick-freezing cold storage