The Austrian industrial company, AGRANA, with a branch in Aschach an der Donau planned a sewer leading through a water protection area. Since the wastewater pipe needed to ensure permanent monitoring and be pressure-tight, the 3L Leak Control system was used.
In the industrial estate of Aschach, AGRANA refines natural maize in order to produce high-grade starch-conversion products. For a new waste pipeline in a drinking water protection zone, the option agreed upon with the Government of Upper Austria was a pipe system which can be fully monitored and comes with permeation protection, is pressure-tight and features an outer diameter of OD 630 mm.
The egeplast 3L Leak Control system featuring electronic leakage monitoring was installed over a distance of 170 m. This system enables permanent monitoring of the pipeline segment running through the drinking water protection zone. For this purpose, an extra low voltage is applied permanently to the electrically conductive intermediate layer made of aluminium. Monitoring of the resistance of the integrated aluminium layer is then carried out via a grounded monitoring unit which will trigger an alarm even in the event of a small damage. The alarm signal may also be transmitted via GSM and be used to shut the pipeline down. The system can also be used for precise localisation of a damaged area.
|Waste water pipeline through a water protection area
|Pipeline requires permanent monitoring and must be pressure-tight
|Installation of a OD 630 mm sewage disposal pipeline of 700 m length comprised of multiple segments, 170 m of which are fully monitored
|3L Leak Control fully monitored
OD 630 mm SDR 17 waste disposal pipeline
|Parties involved in the project:
|Client: AGRANA Österreich
Installation: Weber Bau GmbH, Rohrbach
Dipl.-Ing. Dirk den Ouden
egeplast international GmbH
Tel. +49 2575 9710 271
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