Series RSS/F
Page
18
9560-010-en
Revision 19
TM 10477
Edition 05/2022
♦
If there is any damage, you can try to rework the
sealing surface.
♦
Screw the new seat
205
into the body
100
without
lubricant using the Richter screw-in tool. For
tightening torques, see
Section 1.3
.
♦
Further assembly as described in
Section 9.2
.
9.3.1 V-plug
In contrast to the normal valve plug, the seat
diameter is smaller than the V-plug diameter.
The V-plug is pushed firmly over the resilient sealing
lip of the valve seat. This seals the plug.
9.4 Mounting the actuator
♦
Assembly of the actuator varied depending on the
make and type.
♦
The operating manuals for actuators, positioners
and other accessories must be observed.
As regards the process valve, special attention is to
be paid to the following:
♦
The stem
800
must under no circumstances by
turned to adapt to the coupling
804
. If turned
counterclockwise, it would otherwise turn out of
the metal core of the bellows
206
.
♦
The actuator manufacturers prescribe that the
valve is moved into the closed position when the
coupling
804
is mounted. In this closed position
many bellows are pre-tensioned in the valve. They
would possibly open the valve again. Therefore,
the stem
800
is to be kept in the closed position
when the coupling
804
is mounted.
The safety function, i.e. opening or closing
of the valve if the air or power fails, must be
checked.
10 Drawings
10.1 Legend
100
body
106
Cover
204
plug
205
Seat
206
Bellows
206
heavy-duty bellows
includes:
231
support ring
232
support disc
302/x
guide ring
402/1
Packing ring
404
Packing nut
405
thrust ring
508
Travel stop
510
bracket
516
Yoke
522
round cord
523
Stroke index
550
disc
687
protective bellows
includes:
509/1
Groove nut
954/1
Snap ring
937/1
Clip
800
Valve stem
801
guide
(DN 80-
150, 3“
-
6“)
804
Coupling
850
actuator
901/1
Hex. screw
(DN 15 to 80, ½" to 3" )
902/1
Stud screw
(DN 100, 4")
917/1
screw-in pipe connector
920/x
Hex. nut
936/x
Tooth lock washer
938/1
hex. head screw plug
984/x
** wedge lock washer
** wedge lock washer made of HC-276 for valves with
screws/nuts made of HC