EB 8091-1 EN
37
Servicing
To replace the packing in other valve ver-
sions, contact SAMSON's After-sales Service
department.
1. Remove the actuator from the valve. See
associated actuator documentation.
2. Loosen the slotted nut (11) at the valve.
Remove the yoke (13) from the interme-
diate piece (4).
3. Unscrew hex nuts (20) and remove the
stem connector parts.
4. Unscrew the threaded bushing (12).
5. Pull all the packing parts out of the pack-
ing chamber using a suitable tool.
6. Renew damaged parts. Clean the pack-
ing chamber thoroughly.
7. Apply a suitable lubricant to all the pack-
ing parts.
8.
Carefully slide the packing parts over the
plug stem into the packing chamber us-
ing a suitable tool. Observe the proper
sequence (see Fig. 7).
9.
Screw in the threaded bushing (12) and
tighten it. Observe tightening torques.
10.
Version without insulating section:
place
the sleeve (A27.2) on the plug stem
(2.1).
Version with insulating section:
place
the sleeve (A27.2) on the plug stem ex-
tension (22).
11. Thread on the hex nuts (20) and tighten
them. Observe tightening torques.
12. Place the yoke (13) onto the intermediate
piece (4) and secure with slotted nut
(11). Observe tightening torques.
13. Mount actuator. See associated actuator
documentation.
8
Seal (white)
9
Seal (black)
10 Packing washer
12 Threaded bushing
34 Packing
12
9
8
10
8
12
8
10
34
Fig. 7:
Adjustable packing: PTFE-compound and white PTFE seal rings (left) · White PTFE seal rings
(right)
Содержание 3510
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