SPX APV DELTA M4, Руководство по эксплуатации

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17
21
16
13
9. Service Instructions
9.3 Installation of seals and assembly of valve
The item numbers refer to the spare parts drawings
M4, ME4, MT4:
DN design RN 01.064.0
inch design RN 01.064.1
a. Insert guide bush (7) and O-ring (6) into the yoke (8).
Fasten the yoke (8) at the actuator (13).
b. Install seat seal (2) in the lower valve shaft (3). For the installation
of the seat seal, use the APV assembly tool (see page 17).
Grease the seat seal only slightly before its installation.
If installed manually, vent the seal groove between the seal
and the groove wall with a thin object.
c. Provide the product-averted side of the membrane (4) with a thin
layer of grease and place it on the upper valve shaft (5). Put upper
valve shaft with membrane on the guide rod (9).
Only with valves of the nominal dimensions DN 25 / 1” must
the lower valve shaft be fastened on the guide rod
after a membrane replacement.
The lower shaft must be secured by a drop of a screw locker
(e.g. type: Loctite- semi-solid). Apply the agent only in the
threaded bore, but not on the thread of the guide rod
(see sketch 1). In case of non-observance of these instructions,
the two valve shafts can paste up.
d. Insert lower valve shaft (3) with guide rod (9), membrane (4) and
upper valve shaft (5) through the yoke (8) and the actuator (13).
The upper valve shaft must be led smoothly through the
guide bush in the yoke. If the shaft stiffs, check the right fit
of the guide bush.
e. CU design and valve position indicator:
Place the centering washer (16). Apply a drop of a screw locker
(e.g. type: Loctite - semi-solid) on the thread of the guide rod.
Screw on locking nut (21) and fasten it with a tightening torque of
MD = 40 Nm. Hold up the centering washer during this process.
CU:
Tighten plastic actuator screw.
! Valve position indicator: Fasten metallic actuator screw
as locking nut.
Instructions to replace the guide rod:
for valve dimensions DN 40 - 100 / 1,5” - 4”
Unscrew the guide rod (9) from the lower valve shaft (3).
Clean the valve shaft (remove grease and impurities). Apply a
drop of a screw locker (e.g. type: Loctite - semi-solid) in the area
of the threaded bore of the lower valve shaft (see sketch 1).
Screw in guide rod and tighten it. In case of non-observance of
these instructions, the two valve shafts can paste up.
7
8
5
4
3
sketch 1
2
6
16
21
thin grease layer
do not
grease
do not
grease
9
!
!
actuator screw
sketch 1 seat for
upper
valve shaft
apply screw locker
in the threaded bore
Membrane Valve
DELTA M4
Operating Manual Rev. 1
valve
position
indicator
UK