Series RSS/F
Page
17
9560-010-en
Revision 19
TM 10477
Edition 05/2022
9.2.4 Assembly
DN 15 -
DN 65 (½“.–
2½“)
♦
Insert guide rings
302/1
,
302/2
.
♦
Clamp valve stem
800
in a vice with protective
jaws.
♦
Screw bellows
206
without lubricant onto the valve
stem
800
and tighten by hand.
♦
Check whether the new plug
204
fits into the seat
205
. Make sure that neither the seat nor the plug
is damaged.
♦
Screw plug
204
with plug onto the bellows
206
without lubricant and tighten by hand.
♦
Press round cord
522
into the plug
204
leaving about 10 mm
over. This facilitates
the next dismantling
operation.
Fig. 2
♦
Install valve stem
800
with bellows
206
and plug
204
without lubricant into the cover
106
.
♦
Insert packing rings
402/1
offset by 90° and thrust
ring
405
into the cover and tighten with packing
nut
404
. For tightening torques, see
Section 1.3
.
♦
Screw travel stop
508
and lock nut
920/2
onto the
valve stem
800
.
♦
Carefully lower upper section into the body.
♦
Install cover
106
. For tightening torques, see
Section 1.3
.
♦
If the bracket
510
or yoke
516
was dismantled,
install it again. Tighten groove nut
509/1
.
♦
Mount the protective bellows
687
with inserted
snap rings
954/1
onto the valve stem
800
.
♦
Mount clip
937/1
onto the valve stem
800
.
♦
If the actuator
850
was removed, mount it again
now.
♦
Set valve and mount coupling
804
. See
Section 9.4.
♦
Set travel stop
508
. See
Section 9.1
.
♦
Attach protective bellows
687
with clip
937/1.
♦
Connect monitoring connection again.
DN
80 bis DN 150 (3“ bis 6“)
♦
Press guide
801
into the cover
106
without
lubricant.
♦
Now continue as described under assembly
DN 15 -
DN 65 (½“.–
2½“).
9.3 Replacing seat
The seat is marked with:
Fig. 3
The plug is marked with:
Fig. 4
♦
A screw-in tool is required for assembling and
dismantling the seat
205
. The article numbers for
the individual nominal sizes are listed in
Section
1.2
.
♦
The new seat is to be carefully protected prior to
assembly. The sealing edge and the sealing
surface for the plug must not be damaged.
Fig. 5
♦
Remove the upper section as described in
Section
9.2.
♦
Screw the seat
205
out of the body with the
Richter screw-in tool.
Right-hand thread.
♦
Carefully clean the sealing surface in the body
100
and check for damage.