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.
|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|