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Ehle - Chain Scraper Nozzles
FromEhle-HD GmbH
The chain scraper is a spinning tool mainly used to remove roots or hard incrustations such as slime or cement sludge. The rotor is equipped with three nozzles which spin the rotor so that the chain adapted to the tube diameter centres the chain scraper inside the tube. The precisely-adjusted abrasion effect of the chain and the 90° impact angle result in an excellent cleaning performance of this special nozzle.
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- removal of big and small roots in tubes between DN 80 and DN 200 (for DN 150 and above, a guide carriage is required).
- removal of solid deposits, as slime or clay, and cement clods
- especially suited for bends of building tie-ins
- The chains should not be too short. They should drag along the tube wall but must not impact it.
Chain lengths
- DN 70 mm / 5 chain links
- DN 100 mm / 9 chain links
- DN 150 mm / 11 chain links
- DN 200 mm / 13 chain links