SPX APV DELTA DF plus 2, Руководство по эксплуатации

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15
UK
11. Service Instructions
11.2 Dismantling of seals (service)
The item numbers refer to the spare parts drawings
inch: RN 01.053.80-1.
11.2.1 Dismantling of housing cover (1)
a. Remove the housing cover (1) from the housing.
b. Remove the housing seal (3) , guide band (29) , shaft seal (28)
and seat seal (27) .
11.2.2 Dismantling of valve insert
a. Control the valve with a compressed air pressure of min. 4 bar.
Drive the valve into open position.
Attention: Risk of injury by sudden valve actuation.
Do not touch movable parts.
b. Screw off the safety nut (30) . Hold up the lower valve shaft (4)
with a wrench SW17 to prevent it from turning.
c. Pull off the lower valve shaft (4) .
Prick a pointed tool into the lower seat seal (5) and pull it
out of the groove.
d. Release the clamp screw of the coupling (14) and remove the
complete coupling.
e. Cut off pneumatic air pressure.
f. Pull off the upper valve shaft (6) .
Prick a pointed tool into the upper seat seal (7) and pull it out
of the groove.
g. Attention: If the valve is equipped with a seat lift actuator,
the actuator must be dismantled, at first.
- Release the hex. screws and remove them.
Valve without seat lift actuator:
- Remove the yellow cap from the actuator rod.
h. Press the guide rod out to the top.
Use a rubber mallet to facilitate the work.
i. Remove the operating cam (13) . Remove the o-ring (19) .
j. Remove the hex. screw (12) . Remove the valve seat (10).
Dismount the upper shaft seal (23) , seat seal (24) and the
housing seals 3 x (3) .
Remove the guide bushes (20, 21) from the yoke.
housing
1
3
29
27, 28
lower
valve shaft
4
5
30
seat lift actuator
actuator
14
12
24, 23
10
3
3
13
20, 21
16
7
6
Double Seat Valve
DELTA DFplus2
Operating Manual: rev. 1
DELTA DFplus2 - UK1 / qxd.12.2004
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