9-12 EB 8026 EN
Servicing
4. Lift the ange (2) over the plug stem (5)
off the body (1).
5. Pull the entire packing out of the packing
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 and to the plug stem (5).
8. Place the ange (2) onto the body (1).
Mixing valve with V-port plug: align the
V-port plug, making sure that the largest
V-shaped port faces toward the side
valve outlet (AB). See information under
'Mounting the actuator onto the valve' in
the 'Installation' section.
9. Carefully slide the packing parts over the
plug stem into the packing chamber us-
ing a suitable tool. Observe the proper
sequence (see Fig.9-3).
10. Mixing valve <DN32: rmly press the
plug (5) into the bottom seat (141).
Diverting valve ≥DN32: rmly press the
plug (5) into the top seat (4).
Mixing valve: rmly press the plug (5)
into the bottom seat (141).
Tighten the nuts gradually in a crisscross
pattern. Observe tightening torques.
11. Screw in the threaded bushing (8) and
tighten it. Observe tightening torques.
12. Loosely screw the lock nut (10) and stem
connector nut (9) onto the plug stem.
ADSEAL packing
1. Proceed as described in „Standard pack-
ing (PTFE)“, steps1 to 8.
2. Slide the parts of the packing over the
plug stem in the specied order:
− Spring (11)
− Washer (12)
− Packing rings (16)
3. Slide the seals (15.2) over the plug stem.
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.
4. Insert the red spacer ring (15.1) between
the threaded bushing (8) and retaining
ring. See Fig.9-3.
5. Proceed as described in „Standard pack-
ing (PTFE)“, steps10 to 12.
b) Version with insulating sec-
tion
Standard packing (PTFE)
1. Unscrew the stem connector nut (9) and
lock nut (10) from the plug stem exten-
sion (25).
2. Unscrew the threaded bushing (8).
3. Remove nuts (33) and bolts (32).
4. Carefully lift the ange (2) over the plug
stem extension (25).
5. Pull the entire packing out of the packing
chamber using a suitable tool.
6. Renew the damaged parts and carefully
clean the packing chamber.
7. Apply a suitable lubricant to all the pack-
ing parts and to the plug stem extension
(25).