DUKER 451 Інструкція з експлуатації Посібник з експлуатації - Сторінка 12
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Друкувати сторінку9 Troubleshooting
Leakage at a connection to the pipeline:
Tighten the flange screws.
If leakage continues: Repair necessary.
Leakage at disc:
Check if valve is 100% closed. If so, check if the valve has been closed with the required torque.
If leakage persists, open / close the valve several times under pressure.
If the valve continues to leak, repair is necessary. Change the rubber seal.
Request replacement parts and instructions from Düker.
Further Hints:
Spare parts are to be ordered with all information of the marking on the valve. Only DÜKER original
parts may be installed.
If it is determined after removal that the housing and / or internal parts are not sufficiently resistant to
the medium, the manufacturer DÜKER should be contacted.
Dysfunction:
Remove and inspect the fitting. If the valve is damaged: Repair is necessary. Request replacement
parts and required instructions from DÜKER.
The valve is sealed by O-rings. Before the blind pin or the connecting ring on the valve is loos-
ened, the pressure in the pipeline must be completely reduced. When replacing wearing parts
(e.g. profile seal or O-rings), the line should be completely emptied. When disassembling the
capital 2 safety instructions must be strictly observed.
Please note that Düker GmbH assumes no liability for damage and malfunctions resulting from
non-compliance with the operating instructions.
Issue 04
Düker GmbH – www.dueker.de
page 12