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Why do I keep “burning” up my mechanical seal?

Why do I keep “burning” up my mechanical seal?

Update Time:2016/11/3

If the mechanical seal is being used in a hot water application, the water may be turning to steam and evaporating (flashing off), which leaves the seal faces with no lubricant. Either change to a special mechanical seal designed for hot water applications or install a cooling water plan to prevent flashing.