SPX APV DELTA DF plus 2 Operating Manual page 22

DELTA DFplus2 - UK1 / qxd.12.2004
assembly aid
housing 4" - 6"
27
28
3
29
1
17
11. Service Instructions
fig. 4
k. Insert the lower seat seal (5) into the lower valve shaft (4)
according to service instructions (see 13.).
l. Push the lower valve shaft (30) via the guide rod (8) against the
valve disk.
m. Tighten the safety nut (30) on the guide rod (8) until stop.
Tightening torque = 40 Nm.
*
Cut off pneumatic air.
Danger:
!
Attention:
-
n. Press the yellow cap on the actuator rod.
- If the DFplus2 valve is equipped with a seat lift actuator,
mount the seat lift actuator.
Fasten the seat lift actuator with the hex. screws on the actuator.
fig. 5
11.3.2 Assembly of housing cover
a. Slightly grease the lower shaft seal (28), seat seal (27), guide
band (29) and housing seal (3).
Install the shaft seal (28) at first and then the seat seal (27) in
the housing cover (1).
Insert the guide band (29) and the housing seal (3).
Check the even fit of the seals (see fig. 5).
b. Fasten the housing cover (1) with the hex. screws in the housing.
Do not touch movable parts!
Risk of injury by closing of the valve!
Only for valve dimension 4"and 6" is the
centering arbor required for the installation of the
valve insert in the housing.
(centering arbor 4": ref-No.: 51 - 13 - 725/93
centering arbor 6": ref-No.: 51 - 13 - 726/93).
Fasten the centering arbor with the inner
hex. screw at the lower valve shaft (see fig. 4).
UK
Double Seat Valve
DELTA DFplus2
Operating Manual: rev. 1