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    • 6. 发明授权
    • 버터플라이 밸브
    • 蝶阀及其制造方法
    • KR1019890001452B1
    • 1989-05-03
    • KR1019850007126
    • 1985-09-27
    • 아쁠리까숑메까니끄에로비네떼리엥뒤쓰리엘아엔에르이
    • 기르와파트리끄갈리괴쟝끌로드
    • F16K1/226
    • F16K1/2265
    • A butterfly valve includes a body (1) which has a central bore (2), a transversal drilling (4), two parallel radial faces (3), an annular groove (20) and one lateral wall (23). A closing device (6) is assembled so as to rotate inside the body by means of an operating shaft (7). An elastomeric U-section valve seal or sleeve (8) comprises a covering for the bore of the body, forming the disk seal and lateral flanges forming the pipeline flange seals. The side flanges locate in annular grooves in the valve body and have a convex outer surface. The outer diameter of the seal is less than that of the groove, leaving a free annular volume to be filled during compression of the seal.
    • 蝶阀包括具有中心孔(2),横向钻孔(4),两个平行的径向面(3),环形凹槽(20)和一个侧壁(23)的主体(1)。 闭合装置(6)组装成通过操作轴(7)在主体内旋转。 弹性U型阀密封件或套筒(8)包括用于主体孔的盖,形成盘形密封件和形成管道法兰密封件的侧向凸缘。 侧面法兰位于阀体中的环形槽中,并具有凸形的外表面。 密封件的外径小于凹槽的外径,留下在密封件的压缩期间填充的自由的环形体积。