20
EB 8135/8136 EN
Maintenance
Assembly
1.
Apply a suitable lubricant to the gasket
(5.3) and thread on the bellows housing.
2.
Place on the gasket (5.3) and push the
bellows seal (5) together with the plug
stem into the bellows housing (5.2).
Tighten the coupling nut (5.1) by hand at
first.
3. Apply a suitable lubricant to the thread
and the sealing cone of the new or ma-
chined seat.
4.
DN 15 to 25
Screw in the bottom seat (2.2) and tight-
en:
Valve size
15 to 25
Seat thread
M32 x 1.5
Tightening torque
120 Nm
Place the plug (3) in the bottom seat.
Screw in the top seat (2.1), ensuring that
the plug can slide into the seat from un-
derneath. Tighten the top seat with the
same tightening torque.
DN 32 to 50
Insert the bottom seat (3.2) into the valve
body. Use the seat wrench to screw in
the bottom seat (2.2) and top seat (2.1)
one after the other.
Valve size
32 to 50
Seat thread
M58 x 1.5
Tightening torque
500 Nm
Place the top plug (3.1) and three sleeves
(10.1, 10.2, 10.3) onto the plug stem
one after the other.
DN 65 and 80
Insert the bottom seat (3.2) into the valve
body. Use the seat wrench to screw in
the bottom seat (2.2) and top seat (2.1)
one after the other:
2.2
2.1
10.1
10.2
10.3
3.2
3.1
12.1
12.2
12
11.1
11.2
11.3
11.4
2.1
3.1
3.2
2.2
Fig. 13:
Diverting valve DN 32 to 50
Fig. 14:
Diverting valve DN 65 and 80
Summary of Contents for V2001 Series
Page 26: ...26 EB 8135 8136 EN...
Page 27: ...EB 8135 8136 EN 27...
