EB 8222-1 EN 9-7
Service and conversion work
a) Soft-seated PTFE version (S)
See Fig.9-5
1. Remove the support ring (25) and seat
ring (21).
2. Check surfaces and facings to ensure
they are not damaged. If they are dam-
aged, interrupt the service work and
contact our after-sales service.
3. Move the segmented ball to the closed
position.
4. Insert a new seat (21) into the body.
5. Insert the support ring (25). Make sure it
is properly aligned (see Fig.9-5).
6. Mount the gasket (46) onto the retainer
(30).
7. Insert the retainer (30) with gasket (46)
into the valve body and fasten using re-
taining screws (70) and washers (80).
Observe tightening torques.
The retainer (30) can be pressed into the
body using, for example, a blank ange, by
tightening the ange bolts accordingly. In
this case, rst place the valve in the CLOSED
position to center the seat ring and segment-
ed ball.
Tip
30
46
25
21
30
46
25
21
7
5
Fig.9-5: Soft-seated PTFE version (S)
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