EB 8222-1 EN 9-9
Service and conversion work
c) ARCAP
®
metal-seated version
(A)
See Fig.9-7
1. Remove in sequence any washer(s) (23),
metal tubular seal (26) and seat ring
(21).
2. Check the marking on the packing gland
(15) for the distribution of washers (23).
If no marking exists, note how the wash-
ers are distributed to be able to remount
them correctly afterwards.
3. 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.
4. Move the segmented ball to the closed
position.
5. Insert washer(s) (23) one after the other
(see step 2).
The position of the washers (23) may
vary between positionA and B (see
Fig.9-7). The position depends on the
leakage rate and initial breakaway
torque (see information under b), „AR-
CAP® metal-seated version (A)“ on
page9-12.
6. Insert a new seat (21) into the body.
Make sure it is properly aligned (see
Fig.9-7).
7. Insert the metal tubular seal (26).
8. Mount the gasket (46) onto the retainer
(30).
9. Insert the retainer (30) with gasket (46)
into the valve body (see „Tip“ on
page9-7) and fasten using retaining
screws (70) and washers (80). Observe
tightening torques.