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what is mechanical seal
Mar 02, 2018

Mechanical seals are an oil seal device for rotating machinery. such as centrifugal pumps, centrifuges, reactors and compressors and other equipment. As the transmission shaft runs through the equipment inside and outside, so that there is a circumferential gap between the shaft and the equipment, the media in the equipment through the clearance to the outside leakage, if the equipment pressure below the atmosphere, the air to the equipment leakage, so there must be a stop leakage of the shaft seal device. There are many kinds of shaft seals, due to the mechanical seal with less leakage and long life, so the world today mechanical seals are the most important in these equipment shaft seal. Mechanical seals are also called end-face seals, this is defined in the relevant national standards: "A device for preventing leakage of fluids consisting of at least a pair of end surfaces perpendicular to the axis of rotation in the form of fluid pressure and the action of the compensation Mechanism's elasticity (or magnetism) and the auxiliary seal to maintain a combined relative slip. ”

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