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Compressor assembly
Pipe connection
Pipe connection
4.7 Operating mode of the lockable service connections
Fig. 16
Opening the shut-off valve:
Spindle: turn to the left (counter-clockwise) as far as it will go.
—> Shut-off valve completely opened / service connection closed.
Fig. 17
Opening the service connection
Spindle: Turn
1/2
- 1 turn to the right clockwise.
—> Service connection opened / shut-off valve opened.
Service connec
-
tion closed
Connection
blocked
Spindle
Service connec
-
tion opened
Spindle
Connection
open
Compressor
Compressor
Before opening or closing the shut-off valve, release the valve spindle seal by approx.
1/4
of a turn
counter-clockwise.
After activating the shut-off valve, re-tighten the adjustable valve spindle seal clockwise.
Fig. 14
Fig. 15
4.6 Operating the shut-off valves
Valve spindle seal
Release
Tighten
After activating the spindle, generally fit the spindle protection cap again and tighten with 14 - 16 Nm.
This serves as a second sealing feature during operation.
For systems with long pipes and higher degree of contamination, a filter on the suction-side is
recommended. The filter has to be be renewed depending on the degree of contamination (reduced
pressure loss).
4.8 Suction pipe filter