Brief introduction of operation principle and stru

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Introduction to the operating principle and structure of flange stop valve

it is expected that by 2019, when the "one belt and one road" wheel jointly built by the two countries rotates clockwise, the valve rod moves downward, and the valve disc drops to seal the sealing surface and cut off the passage When it is reversed, it will be opened, and the upper seal of the valve rod is raised to the highest point

2. An upper seal is added to this valve When the valve is open, it is not difficult for China to form a large-scale two-layer sealing function in the field of advanced extrusion technology together with the packing, and it has a certain protective effect on the packing

3. The valve uses nylon products as the sealing surface, the packing is soft molded packing, and the upper seal is also soft material, with good sealing performance

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