DUKER 451 Manuale di istruzioni per l'uso - Pagina 15

Sfoglia online o scarica il pdf Manuale di istruzioni per l'uso per Unità di controllo DUKER 451. DUKER 451 19. Resilient seated butterfly valves

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Move the disc (3) to the open position and remove the countersunk screws (23).

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Remove the retaining ring (4) after removing the countersunk screws (23).



Replace profile sealing (9), remove soiling in sealing area. Check the exact location of the profile

sealing (9) in the retaining groove.



Fill threaded holes for the countersunk screws (23) with glass adhesive.



Tighten the countersunk screw (23) on the retaining ring (4) to the specified torque.

9 (new)



Move the valve disc (3) to the "CLOSED" position.



Pressure test; depending on the pressure level.

Issue 04

Düker GmbH – www.dueker.de

9 (used)

page 15