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DIM262en | 1
st
Issue rev. 3 | 07/2022
page 2
MVH56EC
For valve with 16 and 25mm stroke
Lower the valve stem. Lock the stem extension
c
on the rack
completely extended placing the indicator disk
a
, the jagged
washer
b
and the nut
f
positioned half of the extension itself.
For valves with 45mm stroke
Lower the valve stem. Lock the stem extension
c
on the rack
completely extended placing the indicator disk a and the jag-
ged washer
b
.
• Remove the cover
• Rotate the pivot 1/2 turn counter-clockwise and lock it by
a spanner as shown in the picture.
Screw the extension on the valve stem until the groove on the
actuator base coincides with the one on the valve, then lock
the extension tightening the nut on the stem. In case the two
bases do still not coincide, rotate the pivot until it happens.
Assemble the actuator to the valve by U-bolt
(d)
and locking
the two nuts
(e)
.
MOUNTING POSITIONS
1
1a
2
3
4
