What is difference between mechanical seal and oil seal?


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Julu county demeirui mechanical seal factory

A mechanical seal is simply a method of containing fluid within a vessel (typically pumps, mixers, etc.) where a rotating shaft passes through a stationary housing or occasionally, where the housing rotates around the shaft. When sealing a centrifugal pump, the challenge is to allow a rotating shaft to enter the wet area of the pump, without allowing large volumes of pressurized fluid to escape.

Oil seals or shaft seaks are an integral part in any rotating and moving part assembly. Oil seals find great deal of usage in gearboxes, hydraulic cylinders, etc. The usage of the seals in areas concerned with motion also earns them a name of Dynamic Oil Seals." The purpose of the oil seals is

To act as a physical barrier retaining the lubricating oil where it is bound to be.

To prevent the lubricating oil from leaking outside even under high pressure of the oil.

To act as a barrier and prevent dirt, contamination and other external entities from entering the system containing the lubricating oil.



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