Leakage

A leakage describes the escaping of the fluid from an individual component or a system through a hole or leak. Solids, liquids or gases may enter or escape through this. With mechanical seals, in contrast, a leakage is necessary, so that a lubricating film can be formed between the sliding surfaces and these can run on each other without friction. This leakage is created by the liquid being pressed from an area of high pressure inside the pump to areas of low pressure in the atmosphere.

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