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进口可调节三偏心蝶阀美国阿卡迪亚品牌

进口可调节三偏心蝶阀Product Description:

The utility model comprises a valve body, a valve rod and a butterfly plate, the butterfly plate is fixedly connected with the valve rod, the valve rod is threaded throu the valve body, and also comprises a pressure ring, the outer wall of the pressure ring is connected to the internal thread at the lower end of the valve body throu the external thread, the length of the internal thread is greater than the length of the external thread, a limiting part is arranged between the valve rod and the pressure ring, and the limiting part restricts the relative movement of the valve rod and the pressure ring along its axial direction. The three eccentric butterfly valve is connected to the lower end of the valve body throu the pressure ring thread, and is provided with a fixed part limiting part, so that the pressure ring can drive the valve rod to move up and down throu the thread rotation, so as to adjust the position of the butterfly plate. It has the technical characteristics of long service life.

进口可调节三偏心蝶阀characteristic:

Butterfly valve, also known as flap valve, is a regulating valve with simple structure, which can be used for switching control of medium in low-pressure pipeline. Butterfly valve refers to a valve whose closing part is a disc (butterfly plate) and rotates around the valve stem to open and close. Triple eccentric butterfly valve refers to the valve stem axis deviates from the center of the disc plate and the center of the body at the same time, and the rotation axis of the valve seat has a certain angle with the channel axis of the valve body.

进口可调节三偏心蝶阀Principle:

A throu hole is arranged in the middle of the pressure ring, the lower end of the valve rod is threaded throu the pressure ring, and the lower end of the valve rod is flush with the pressure ring; The limiting part is a step end face and a pressing plate. The step end face is arranged on the valve stem and can be a step end face formed by a step shaft or a shoulder. The step end face can be formed at the change of the diameter of the step shaft. The shoulder is similar to the shaft stop and is a flange on the shaft; The end face of the step is in contact with the upper end face of the pressure ring, and the contact mode is conflict. The end face at the lower end of the valve rod is connected with a pressing plate throu olts, and the diameter of the pressing plate is greater than the inner diameter of the throu hole of the pressure ring, that is, the pressing plate is in contact with the lower end face of the pressure ring, and the contact mode is conflict, which prevents the axial flit of the valve rod. The lower end of the valve stem includes a valve stem step and a valve stem body in turn along its axial direction. The diameter of the valve stem step is smaller than the valve stem body. In other embodiments, the valve stem body can also be divided into several rods with different diameters, but the diameter near the valve stem step is larger than the valve stem step. The specific valve stem step is located at the lower end of the valve stem and passes throu the pressure ring. The inner diameter of the throu hole of the pressure ring is smaller than the valve stem body, so that the valve stem will not pass throu the pressure ring. The end face of the step is the interface end face between the valve stem step and the valve stem body. The upper end face of the pressure ring and the step end face, the lower end face of the pressure ring and the pressing plate can be in sliding contact, that is, they can slide relatively smoothly without friction between the two surfaces. Further, the upper end face and the lower end face of the pressure ring are provided with an annular groove along the circumference of the inner side of the pressure ring, the annular groove is connected with the throu hole of the pressure ring, and the annular groove is provided with a sliding retaining ring, The upper and lower ends of the pressing ring are in sliding contact with the step end face and the pressing plate respectively throu the sliding retaining ring, which is made of low friction material

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