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The Shell & Tube double safety heat exchangers from Kelvion minimise process costs and optimise energy efficiency. Double tube safety heat exchangers play an important role in applications where preventing media mixing in the event of a leak is paramount. Unlike a standard shell & tube heat exchanger with a single wall design, the tubes in double safety models have two walls, consisting of an inner and outer tube. They also have two tube sheets at each end. If a tube wall is damaged, the product flows through small channels arranged between the double tubes into a leakage collection space and triggers an alarm in the leak detection device. Because the second tube wall remains undamaged, the media are kept separate.
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