EB 8026 EN
9-7
Servicing
9.4.1 Replacing the gasket
Risk of control valve damage due to incor-
rect servicing.
Î
Only exchange the gasket in valves with-
out pressure balancing.
Î
To replace the gasket in valve versions
with pressure balancing, contact our af-
ter-sales service.
a) Standard version
1. Undo the body nuts (14) gradually in a
crisscross pattern.
2.
Lift the flange (2) and plug with plug
stem (5) off the body (1).
3. Remove the gasket (17). Carefully clean
the sealing faces in the valve body (1)
and on the flange (2).
4. Insert a new gasket (17) into the body.
5.
Place the flange (2) onto the body.
Mixing valve with V-port plug:
place the
flange (2) onto the valve body, making
sure that the largest V-shaped port of the
V-port plug faces toward the side valve
outlet (
AB
). See 'Mounting the actuator
onto the valve' in the 'Installation' sec-
tion.
6.
Diverting valve:
firmly press the plug (5)
into the top seat (4).
Mixing valve:
firmly press the plug (5)
into the bottom seat (141).
Fasten down the flange (2) with the body
nuts (14). Tighten the nuts gradually in a
crisscross pattern. Observe tightening
torques.
b) Version with insulating
section or bellows seal
1. Undo the body nuts (14) gradually in a
crisscross pattern.
2.
Lift the insulating section (21) or bellows
seal (22) together with flange (2) and
plug with plug stem (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) or
bellows seal (22).
4. Insert a new gasket (17) into the body.
5.
Place the insulating section (21) or bel-
lows seal (22) together with the flange
(2) and plug with plug stem (5) onto the
body.
Mixing valve with V-port plug:
place the
assembly onto the valve body, making
sure that the largest V-shaped port of the
V-port plug faces toward the side valve
outlet (
AB
). See 'Mounting the actuator
onto the valve' in the 'Installation' sec-
tion.
6.
Diverting valve:
firmly press the plug (5)
into the top seat (4).
Mixing valve:
firmly press the plug (5)
into the bottom seat (141).
Fasten down the insulating section (21)
or bellows seal (22) with the body nuts
(14). Tighten the nuts gradually in a
crisscross pattern. Observe tightening
torques.
NOTICE
!
Summary of Contents for 3244
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