Flowserve HV 205 - Manual (Page 19)

19
Maintenance
– continued –
Replacing valve plug seal
- continued -
To mount the valve head proceed in reverse order of the removing procedure:
See drawing further down
1. Put valve plug seal onto valve plug and screw in the four socket-head cap
screws together with the washer , using a torque of 15 Nm. Apply a commerically
available lubricant to the screws and tighten them in several steps in diagonally
opposite pairs.
2. Then secure the washer by using the retaining ring .
3. Screw the 6 hexagon-head cap screws together with the locking washers into
the stay bolts , applying a torque of 25 Nm. Apply a commerically available
lubricant to the screws and tighten them in several steps in diagonally opposite pairs.
4. Unscrew the centrally aligned hexagon-head cap screw with the washer from the
valve plug
.
31 25
29 30
27 28
1 2
3
25
Attention
The specified torques must be strictly observed.
31 28 29 30
1
2
3
4
5
6
25
26
23
24
27
7