如何测试阀门的密封性能

2016/3/13 11:12:07      点击:


 阀门的密封性能检测是阀门生产厂家和检验单位必须要检测的项目之一。阀门的密封性能是指阀门各密封部位阻止介质泄漏的能力,它是阀门重要的技术性能指标。
阀门的密封部位有三处:启闭件与阀座两密封面间的接触处;填料与阀杆和填料函的配和处;阀体与阀盖的连接处。其中前一处的泄漏叫做内漏,也就是通常所说的关不严,它将影响阀门截断介质的能力。对于截断阀类来说,内漏是不允许的。后两处的泄漏叫做外漏,即介质从阀内泄漏到阀外。外漏会造成物料损失,污染环境,严重时还会造成事故。对于易燃易爆、有毒或有放射的介质,外漏更是不能允许的,因而阀门必须具有可靠的密封性能。

将鸿提供的阀门综合性能试验机不仅可以检测阀门的密封性能,还可以对耐压性能和流量性能检测,是生产厂家和检验单位必备的检测设备。设备可以根据具体的检验要求定制,有简易控制型和计算机控制型等多种类型可选,欢迎来电咨询。

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