metal 24:246 eccentric butterfly valve, sealing characteristics: don't rely on the elastic deformation of the seat, but completely using the seat contact surface pressure for sealing effect. Three eccentricity metal hard seal butterfly valve can be used under the condition of high temperature and high pressure, high wear resistance. Triple eccentric butterfly valve is the structure characteristics of double eccentric eccentric axis of the stem and disc sealing surface cone axis with the valve body cylindrical axis offset at the same time. After the third eccentric disc sealing section is no longer a round, oval, shape of the seal surface is not symmetrical. On one side is leaning to the centerline of the body, on the other side is parallel to the line of the body. Triple eccentric butterfly valve is fundamentally changing the way the characteristics of seal structure, the position is no longer a seal, seal, but torque is not dependent on the elastic deformation of the seat, but completely using the seat contact surface pressure for sealing effect. The sealing design can solve the problem of metal seated butterfly valve leakage, due to the contact surface pressure is proportional to the medium pressure, butterfly can withstand the gate valves, globe valves, metal hard seal ball valve, such as high temperature and high pressure, extended the scope of use.

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