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4 | compressor assembly – GEA Bock FK40 User Manual

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4| Compressor assembly

4.9 Operating mode of the lockable service connections

1

1

3

3

Pipe connection

Pipe connection

2

2

Fig. 17

Opening the shut-off valve:
a) Spindle 1: turn to the left (counter-clockwise) as far as it will go.

—> Shut-off valve fully opened / service connection 2 closed.

Fig. 18

Opening the service connection (2):
b) Spindle 1: Turn ½ - 1 rotation to the right.

—> Service connection 2 opened / shut-off valve opened.

Connection 3 is provided for safety devices and is not lockable.