Threefold Safety System

  1. First, for the water filled rubber dams there is an overflow section in the regulations shaft, whilst air inflated systems have a sensor activated pressure relief valve

  2. Second, there is a manually operated outlet valve or pressure relief valve

  3. Third,the inside pressure fill in the dam is limited by an emergency discharge device with a mechanical driven bucket drive for the release valve, activated by a pre-defined reservoir water level
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