14
2 BW 70 en
10.5
Replacement of the metallic seat ring
Please proceed as follows:
Fig. 17
Replacement of the metallic seat ring
Demount the valve in its CLOSED position (see Figure 18).
For further instructions, see Section 4.5 of this IMO.
1.
Secure the valve on a solid base or workbench so that it
cannot slip or tip.
Fig. 18
Valve in CLOSED position
9.
Loosen the hexagon-head screws (306) (see Figure 19).
Fig. 19
Loosen the screws (306)
10. Demount the retaining ring (310) (see Figure 20).
Fig. 20
Demount the retaining ring (301)
11. Remove the rings (301, 303) and the sealing (304). (see
Figures 21 - 23)
Fig. 21
Remove the outer seal lock ring (303)
Fig. 22
Remove the inner seal lock ring (301)
310
321
301
306 307
303
304
