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Contents are subject to change without notice.
SKW/ SKF-2015-09-ENG
6.4
Valve dismantling
Follow these instructions if you are to do full overhaul on the valve. Part numbers refer to
Mechanical structure.
6.4.1
Removing the actuator, gate, and tower
1.
Remove the valve from the pipeline as instructed in the earlier chapter 6.3.
2.
Install locking pins (13) between the gate (2) and tower (3).
3.
Remove the tower mounting bolts (5) bolts and lift the actuator, gate (2) and tower
(3) off.
4.
To detach the gate (2) from the actuator stem, remove retaining ring (17) and the
clevis pin (16) from the clevis (14).
Figure 13. Removing the clevis pin.
5.
Clean the gate (2) and inspect it for deep scars and transformations. Replace the gate
if it’s damaged to prevent accumulation of damage to the secondary seal (7) and ring
sleeves (4).
6.
Use a marker to mark the height of the clevis (14) on the cylinder shaft. The position
is needed in valve assembly.
7.
Remove the clevis locking screw (15) and the clevis (14).
8.
Remove the bolts from between the actuator and tower (or adapter plate if
equipped). Lift the actuator off the tower.
9.
Refer to actuator manufactures’ instructions for actuator sealing replacement or other
maintenance work.
