Samson 3241, Монтаж и эксплуатация

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44 EB 8012 EN
Maintenance
Version with V-port plug: place the valve
bonnet (2) onto the insulating section,
making sure that the largest V-shaped
port of the V-port plug faces toward the
valve outlet. See section 5.1.
10. Carefully slide the packing parts over the
plug stem extension into the packing
chamber using a suitable tool. Make sure
to observe the proper sequence (see
Fig. 9).
11. Fasten the valve bonnet with nuts (33)
and bolts (32). Observe tightening
torques.
12. Screw in the threaded bushing (8) and
tighten it. Observe tightening torques.
13. Loosely screw the lock nut (10) and stem
connector nut (9) onto the plug stem.
14. Mount actuator. See associated actuator
documentation.
15. Adjust lower or upper signal bench
range. See associated actuator docu-
mentation.
ADSEAL packing
1. Proceed as described in “Standard pack-
ing (PTFE)”, steps 1 to 9.
2. Slide the parts of the packing over the
plug stem extension in the specified or-
der:
−
Spring (11)
−
Washer (12)
−
Packing rings (16)
3. Slide the seals (15.2) over the plug stem
extension.
Insert the wire of the red spacer ring
(15.1) into the groove of the retaining
ring.
Slide the retaining ring over the plug
stem extension.
4. Insert the red spacer ring (15.1) between
the threaded bushing (8) and retaining
ring. See Fig. 9.
5. Proceed as described in “Standard pack-
ing (PTFE)”, steps 11 to 15.
7.3 Replacing the seat and
plug
NOTICE
Risk of control valve damage due to
incorrect service or repair.
Seat and plug can only be replaced
when all the following conditions are
met:
−
The valve size is ≤ NPS 6.
−
The valve does not have a bal -
anced plug.
−
The valve does not have a bellows
seal.
− The standard or ADSEAL packing
is installed in the valve.
To replace seat and plug in other
valve versions, contact SAMSON's
After‑sales Service department.
NOTICE
Risk of damage to the facing of the
seat and plug due to incorrect service
or repair.
Always replace both the seat and
plug.