Based on the 6 cylinder HG7 compressor a selection of two stage variants are available for extended use in intense cooling. The selection of the liquid intercooler unit is available for three different refrigerants: R404A (R507), R410A and R22, basically involving different expansion valve assemblies.
GEA Bock Semi Hermetic Two-Stage HGZ Compressors
Differences to the standard compressor
Special explosion-proof design of the electric components, Connection potential compensation, Special explosion-proof terminal box, Special explosion-proof accessories available
EX-HG12P, EX-HG22e, EX-HG34e, EX-HG44e, EX-HG56e, EX-HG6, EX-HG7, EX-HG8
|Current types||Displacement at 50 Hz (1450 rpm) m³/h|
|HGZ7||93.7 / 46.9||107.6 / 53.8||122.4 / 61.2|
|HGZX7||93.7 / 46.9||107.6 / 53.8||122.4 / 61.2|
The HGZ7 is available in two options:
Intermediate pressure line mounted and insulated. Liquid supercooler, expansion valve, solenoid valve, two sight glasses, filter dryer, everything enclosed separately for individual, external mounting.
Liquid supercooler, expansion valve, solenoid valve, two sight glasses, filter dryer attached directly to the compressor, lined and insulated.