Alfa Laval LKB - Valve Dismantling (LKB-F)

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5 Maintenance
Read the instructions carefully.
The items refer to the parts list and service kits section.
Handle scrap correctly.
LKB-F: with flange connection.
5.4 Dismantling of valve - LKB-F
S
S
t
t
e
e
p
p
1
1
1. Loosen the two upp
er screws and nuts (6).
2. Loosen and remove
the two lower screws and nuts (6).
3. Remove the valve
unit from flanges (7).
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S
t
t
e
e
p
p
2
2
1. Remove the two upper screws and nuts (6), (4 nuts).
2. If supplied, remove the actuator from the valve body unit.
3. If supplied, loosen the screw and remove the handle from the
valve body unit.
S
S
t
t
e
e
p
p
3
3
1. Loosen and r
emove the two centre screws and nuts (6).
2. Remove seal
ring (5) together with valve disc (2).
3. Remove fla
nge seal rings (8).
S
S
t
t
e
e
p
p
4
4
Remove bushes (3,4) from the disc stems.
TD 403-096
S
S
t
t
e
e
p
p
5
5
Remove
valve disc (2) from seal ring (5).
N
N
O
O
T
T
E
E
!
!
For valve sizes 25-38 mm and DN25-40, it is recommended to
remov
e the valve disc by using a special service tool (item no.
9611981090).
TD 403-097
22