DUKER 4510 Series 사용 설명서 - 페이지 16

{카테고리_이름} DUKER 4510 Series에 대한 사용 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. DUKER 4510 Series 19 페이지. Resilient seated butterfly valves

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DUKER 4510 Series 사용 설명서
In case of leakage, adjust retaining ring in closed position. To do this loosen grub screws (23) and tighten
countersunk screws (27) with permissible torque. After this operation, turn the grub screws (23) clockwise to
make contact with the surface of the butterfly disc (3).

10.3 Adjusting the retaining ring

The retaining ring (4) can be adjusted in the CLOSED position of the butterfly valve. For this purpose, the
grub screws (26) are released, while the countersunk screws (25) are tensioned with a permissible torque.
After this procedure, the grub screws (26) are to be fixed by turning clockwise
To ensure proper function and compliance with drinking water hygienic requirements, only origi-
nal Düker spare parts may be installed.
Issue 03
Düker GmbH – www.dueker.de
page 16