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Flange straight through valve body structure characteristics
The author: Time:2020/12/18

        法兰直通式阀体是中空、壁薄的壳体零件,多为三通管状,用于直线管路上。该阀体的进口通道与出口通道同轴,故称直通式。两通道端部为圆形法兰,法兰上有若干均匀分布的螺栓孔,以便与管路连接。阀体上端亦有法兰(亦称中法兰),用以连接阀盖。镶阀座结构的阀体内腔有精度较高的圆柱孔或螺纹孔,堆焊或由本体车出密封面的阀体内腔有精度要求很高的密封面。
        法兰直通式是闸阀、截止阀、止回阀、减压阀及节流阀阀体常用的一种结构形式。这种结构的应用范围很广,尺寸从DN50~2000,压力从PN0.6~32.0。为适应不同的需要,法兰直通式阀体具有各式各样的结构形状。法兰直通式阀体按其零件的轮廓形状及加工表面形状一般可分为三种形式。

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