Leak prevention and detection technology - For a clean and protected environment. Overpressure and vacuum leak prevention and detection technology for double walled tanks and pipes. SGB leak prevention and detection systems will permanently monitor and actively prevent leaking of double walled tanks and pipes as well as monitoring pump sumps, manhole chambers and containment's. All SGB systems will also give an alarm indication before any stored product can enter the environment causing environmental pollution. With over 320,000 leak detectors installed worldwide since 1962, SGB has built a reputation for robust, quality products for the mineral oil, chemical and heating oil industries and has achieved the highest of environmental protection level in accordance to EN 13160.