GEA Bock FK50 - Manual (Page 13)

13 09704-09.2013-DGbFIT
rCn
D
GB
F
I
TR
CN
4| Compressor assembly
4.7 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.
The discharge and suction line valves have stepped internal
diameters, enabling the use of pipes with standard millimetre and
inch dimensions. The depth of pipe insertion will depend on the
dimension.
The connection diameters of the shut-off valves are designed for
maximum compressor output. The required pipe cross-section
must be matched to the capacity. The same applies for
non-return valves.
Fig. 13: Stepped
internal diameters
4.6 Pipe connections
4.8 Operating the shut-off valves
Before opening or closing the shut-off valve, release the valve spindle seal by approx. ¼ of a turn
counter-clockwise.
After activating the shut-off valve, re-tighten the adjustable valve spindle seal clockwise.
Fig. 14 Fig. 15
ATTENTION! Overheating can damage the valve.
Therefore, remove the pipe supports from the valve before
soldering.
Solder only using inert gas to inhibit oxidation products.
The required tightening torque for the flange connection is 60 Nm.
Valve spindle seal
Release
Tighten