14 | P a g e
C8 Modification of a standard valve DN250-600 with an adapter for an electric actuator (use
newly coated spindle)
1. Remove the wax sealing from the centering
flange screws.
2. Loosen the inner hex bolts and remove them.
3. Remove the centering flange.
4. In case the upper ball bearing or the bearing ring
remains in the central flange, take them out.
5. Unscrew the spindle with the ball bearing and
the o-ring bracket by rotating them clockwise
6. Mount the ball bearing and the o-ring bracket
on the newly-coated spindle (in the same order as
with the original spindle)
Screw in the spindle into the wedge nut by rotating
it counterclockwise.
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