Operating The Shut-Off Valves; Operating Mode Of The Lockable Service Connections Dgb - GEA HG22e A Assembly Instructions Manual

4 | Compressor assembly

4.7 Operating the shut-off valves

Before opening or closing the shut-off valve, release the adjustable 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.
Valve spindle seal
Fig. 17
4.8 Operating mode of the lockable service connections
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.
Opening the service connection
Spindle: Turn ½ - 1 turn to the right clockwise.
—> Service connection opened / shut-off valve opened.
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.
Service connec-
tion closed
Spindle
Connection
blocked
Service connec-
tion opened
Connection
Spindle
open
Release
Tighten
Fig. 18
Pipe connection
Compressor
Pipe connection
Compressor
D
GB
F
E
Fig. 19
Fig. 20
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