Description
E.ON Ruhrgas AG Essen had a study carried out, entitled:
Studies on improving the localisation of leakages
in cohesive grounds under closed surfaces
Two points are highlighted in the summary of the report:
- The Esders Vakumobil has a markedly improved suction power compared to conventional technology.
- The low pressure in the surface generated by one suction probe has an impact over several metres. This creates only a movement or distortion of the gas accumulation but not there elimination.

Technical data
Maximum lower pressure | 900 mbar |
---|---|
Maximum volume flow 266 l/min | 266 l/min |
Electrical data | 220-240 Volt 50 Hz, 5.5 A |
Feeder 230 Volt | 10 metres |
Suction hose DN 25 | 10 metres |
Coarse filter in transparent casing | optional |
Low pressure gauge | - 1 to 0 bar |