GEA Bock HGZ7 - Manual (Page 6)

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2| Product description
Semi-hermetic, two-stage, six cylinder reciprocating compressor with suction-gascooled
drive motor.
Stages divided into LP / HP at the ratio of 2 : 1
Two-stage operation with liquid subcooler
Expansion valve for subcooling adjusted for refrigerant and application range
2.1 Short description standard version
Intermediate
pressure
chamber
Terminal box
Dimension and connection values can be found in Chapter 10
Oil pump
Suction
shut-off valve
Name plate
Notice CE certification
for piping (only for
HGZ7/2110-4)
Oil sight glasses
Oil drain plug Charge plug
Valve plate
Discharge
shut-off valve
Intermediate
pressure line
Fig. 1
Fig. 2
Oil sump heater