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Structural design of low load regulating butterfly valve should be combined with the working conditions of the valve. Under the conditions of high temperature dust content, the design of low load regulating butterfly valve can adopt the plane inclined plate structure. The structure of the disc and valve body leaving a gap between the gap value based on the valve diameter and conditions of use to determine the general control of the channel area of ​​less than 0.5%, to meet the low load regulation butterfly valve installation and temperature conditions change And smelting process requirements. In the higher temperature and dust content of small acid conditions, the design of low load butterfly valve can be used vertical plate structure. The structure of sealing surface processing easy, the sealing surface gap value controlled within 0.2% of the channel area. Valve body, butterfly seal size accuracy can be achieved through machining design requirements. For high temperature, low pressure and sealing requirements of the operating conditions, low-load control butterfly valve design using lever-type planar structure. The sealing companion and disc running track to meet the high sealing performance of pipe network equipment process requirements. Low load regulating butterfly valve body seal according to different conditions choose different structures, is conducive to valve production and working conditions. The low-load regulation butterfly valve shaft end structure design adopts the external support structure with excellent heat insulation and sealing effect, which can seal and support the two-shaft end of the valve first, which facilitates the adjustment function and does not cause the shaft end jam. In the direct connection or crank linkage and transmission mechanism connection, the installation of insulation sleeve can effectively away from the impact of high temperature environment on the transmission, to ensure the normal operation of the valve. Large diameter low load regulating butterfly valve body and butterfly valve should be based on the conditions required by the use of cast or welded form, should be configured ribs, select a reasonable process options and materials to improve product rigidity and prevent product deformation Low load regulating butterfly valve Installation location in the pipe network and the layout of the pipe also has an impact on the use of the valve, large pipe dust in the valve opening or the valve connecting the corner of the design of the closed funnel, regular ash can prevent dust accumulation too much, in order to facilitate the butterfly plate The rotation. The above content is based on the actual problems encountered by the students finishing for reference, if you have any questions, please communicate and correct.