秒速赛车怎么看技巧

衬氟截止阀的缺点都有什么

发布时间:2019.08.20     浏览次数:     新闻来源:waway6g.cn

工作行程小,启闭时间短。密封性好,密封面间磨擦力小,寿命较长。衬氟截止阀的缺点如下:流体阻力大,开启和关闭时优点衬氟截止阀具有以下优点:结构简单,制造和维修比较方便。工作行程小,启闭时间短。密封性好,密封面间磨擦力小,寿命较长。高温风机衬氟截止阀的缺点如下:流体阻力大,开启和关闭时所需力较大。不适用于带颗粒、粘度较大、易结焦的介质。调节性能较差。高压截止阀的种类按阀杆螺纹的位置分有外螺纹式、内螺纹式。按介质的流向分,有直通式、直流式和角式。截止阀按密封形式分,有填料密封截止阀和波纹管密封截止阀。注意事项衬氟截止阀的安装与维护应注意以下事项:手轮、手柄操作的截止阀可安装在管道的任何位置上。

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