DUKER 451 Panduan Petunjuk Pengoperasian - Halaman 13
Jelajahi secara online atau unduh pdf Panduan Petunjuk Pengoperasian untuk Unit Kontrol DUKER 451. DUKER 451 19 halaman. Resilient seated butterfly valves
Halaman Cetak10 Service and maintenance
10.1 Maintenance
It is recommended to operate fittings that remain permanently in one position three to four times a year.
10.2 Replacing the profile sealing
Mark the positon of the retaining ring (4) to the disc (3) (yellow line).
Issue 04
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Düker GmbH – www.dueker.de
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