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− For Class 150 and 300/PN 16 and
40: The valve size is
≤NPS 6/≤DN 150.
− For Class 600 and 900/PN 100 and
160: The valve size is
≤NPS 4/≤DN 100.
Î To replace the gasket in other valve ver-
sions, contact our after-sales service.
1. Undo the body nuts (14) gradually in a
crisscross pattern.
2. Class 150 and 300/PN 16 and 40: lift
the insulating section (21) together with
the intermediate piece (2), plug (5) and
plug stem extension (25) off the body (1).
Class 600 and 900/PN 100 and 160:
lift the insulating section (21) together
with the yoke (3) and plug (5) off the
body (1).
3. Remove the gasket (17). Carefully clean
the sealing faces in the valve body (1)
and on the insulating section (21).
4. Insert a new gasket (17) into the body.
5. Class 150 and 300/PN 16 and 40:
place the insulating section (21) together
with the intermediate piece (2), plug (5)
and plug stem extension (25) on the
body (1).
1
Body
2
Intermediate piece
3
Yoke
4
Seat
5
Plug (with plug stem)
8
Threaded bushing (packing
nut)
9
Stem connector nut
EB 8046 EN
Class 600 and 900/PN 100 and 160:
place the insulating section (21) together
with the yoke (3) and plug (5) onto the
body (1).
The following points must be observed:
Version with V-port plug: align the plug
(5), making sure that the largest
V-shaped port of the V-port plug faces
toward the valve outlet.
Versions with perforated plug: align the
plug (5), making sure that the hole clos-
est to the seal facing of the plug faces to-
ward the valve outlet.
See relevant information under 'Mount-
ing the actuator onto the valve' in the 'In-
stallation' section.
6. Firmly press the plug (5) into the seat (4).
Fasten down the insulating section (21)
with the body nuts (14). Tighten the nuts
gradually in a crisscross pattern. Ob-
serve tightening torques.
10
Lock nut
14
Body nut
15
Packing
17
Body gasket
21
Insulating section
25
Plug stem extension
30
Retaining washers
Servicing
32
Bolt
33
Nut
39
Gasket (intermediate piece)
86
Circulation inhibitor
87
Threaded bushing
92
Castellated nut
9-7
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