Technical requirements of Mechanical Seal

     The sealing ring is a movable ring and the static ring (the same below), which is composed of the main componentsof mechanical seal. Sealing ring determines theperformance and the service life of mechanical seal, to a great extent, therefore, puts forward some requirements for it.

      Have sufficient strength and rigidity.

     Under working conditions (such as pressure, temperatureand sliding speed) do not damage, deformation should be as small as possible, working condition fluctuation can still maintain the seal. Especially the seal must be of sufficient strength and corrosion resistance, to ensure that products are satisfied with the service life.

mechanical seal

     Have good ability of resistance to thermal shock

    Therefore, the requirements of the material with high thermal conductivity and low linear expansion coefficient,heat shock bearing without cracking.

     Smaller friction coefficient.

    Sealing ring friction coefficient matching should besmaller.

     Good self lubrication

    A short period of time such as occurs in dry friction, does not damage the sealing surface. Therefore, the sealing ring should have good self lubrication, sealing materials and sealing fluid also has good wettability.

    Simple structure

    Sealing ring structure simple symmetry, give priority towith the integral structure, can also be a combined (such as inserting type sealing ring), try to avoid using seal facespraying type structure.

     The sealing ring must be easy to manufacture

     Installation and repair convenience, low price to.

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