GEA HG44e/475-4 - Operating The Shut-Off Valves; Operating Mode Of The Lockable Service Connections

14
D
GB
F
E
96416-03.2017-DGbFEIRu
4 | Compressor assembly
4.6 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.12
Fig.13
Valve spindle seal
Release
Tighten
Pipeconnection
Pipeconnection
4.7 Operating mode of the lockable service connections
Fig.14
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.
Theconnectionwhichcannotbeshutoffisintendedforsafetydevices.
Fig.15
Opening the service connection
Spindle:Turn½-1turntotherightclockwise.
—>Serviceconnectionopened/shut-offvalveopened.
Theconnectionwhichcannotbeshutoffisintendedforsafetydevices.
Serviceconnection
closed
Connection
blocked
Spindle
Connectioncannot
be
shutoff
Connectioncannot
beshutoff
Serviceconnection
opened
Spindle
Connection
open
Compressor
Compressor
Afteractivatingthespindle,generallytthespindleprotectioncapagainandtightenwith14-16Nm.
Thisservesasasecondsealingfeatureduringoperation.