Maintenance / Sealing replacement
DOMINO knife gate valves series AT
AT-Einbauanleitung Dichtungen (GB).doc (BL) 31.03.2005
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4. Preparing the front body part
4.1
Cut the
cross-sealing
(if appropriate scraper or base as
well) acsealing to the groove length.
Make the narrow ends of the sealing fit the shape of the
groove radii using a suitable tool (e.g. scissors or sanding
disc).
Lay the compact cross-
sealing in the cross-sealing
groove and grease it using a
suitable agent (e.g. Red
Rubber).
The narrower side must be
pointing towards the gate!
If a U-profile (PTFE)
with silicone base is
used, proceed as
shown below.
If a scraper is used in
combination with the
compact cross-sealing
proceed as shown on the
right.
4.2 Fix the sealing elements
in place using a suitable retaining fixture (e.g. metal clamps).
5. Preparing the rear body part
5.1 Adapt and insert the
cross-sealing
(if appropriate scraper
or base as well) as described for the front body part.
5.2 Determine the length of the round seal
by trial and error,
inserting it in the groove planned for it and cut it off
around 5-10 mm longer. (In its installed position, the sealing
should be slightly upset).
