Cadis supplies leak detector systems based on the vacuum principle. The systems can be used for water-endangering liquids regarding approved listing, with a flash point > 55°C. An integrated vacuum pump evacuates air from the interstitial space and keeps this space in a under pressure condition. This system is applicable for double-walled bottoms, or flat base tanks. It is also applicable for double-walled pipes if no leak location is required. Please contact us of more info.