14
2 BO 70 en
11.4
Reassembly
To re-install the disc valve, please proceed as follows:
□
Close the disc valve.
□
At the end of the actuator shaft and on the shaft exten-
sion of the disc valve, there is a marking. The marking at
the actuator shaft must be in line with the marking on
the body when re-installing the valve.(see Figure 17)
When the markings are aligned, the valve is closed.
Figu 17
Installation markings
□
Put the actuator in the closed position.
□
Make sure that you place the actuator in the correct
position on the actuator shaft. Use the marking for this
that you made on the valve body as well as on the actu-
ator when you dismounted the valve, and ensure as
exact an alignment of all parts (body – actuator) as pos-
sible. (see Chapter 4)
□
Install the disc valve between the pipelines (see
Chapter 3)
11.5
Replacement of the sealing element
Please proceed as follows:
Demount the valve in its CLOSED position. For further
instructions, see section 4.5 of this IMO.
1.
Fix the valve on a solid base or workbench so that it
cannot slip or tip.
2.
Turn the disk in the 180° open position.
Figure 18
180° open position
Marking on the valve body
Marking on the actuator shaft
301
320
306
