4 | compressor assembly, D gb f e – GEA Bock HG4 CO2 User Manual
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4.5 Laying suction and pressure lines
4| Compressor assembly
4.4 Pipes
Pipes and system components must be clean and dry inside and free of scale, swarf and layers of
rust and phosphate. Only use air-tight parts.
Lay pipes correctly. Suitable vibration compensators must be provided to prevent pipes being
cracked and broken by severe vibrations.
Ensure a proper oil return.
Keep pressure losses to an absolute minimum.
Fig. 12
Rigid
fixed point
As short as
possible
A rule of thumb: Always lay the first pipe section starting from the shut-off valve downwards
and parallel to the drive shaft.
ATTENTION Improperly installed pipes can cause cracks and tears, the result
being a loss of refrigerant.
INFO
Proper layout of the suction and discharge lines directly after
the compressor is integral to the system’s smooth running and
vibration behaviour.
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The
pipe connections have graduated inside diameters so that pipes with
standart millimetre and inch dimensions can be used.
The connection diameters of the shut-off valves are rated for maximum
compressor output.
The actual required pipe cross section must be
matched to the output. The same applies for non-return valves.
Fig. 11: graduated
internal diameter