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减压阀按结构应该如何分类?

2021-05-12 00:00

减压阀的话分为很多种,在什么场合使用什么减压阀也是有讲究的,为大家整理出三汽减压阀分类,按结构如何分类呢?

一、减压阀中的作用式减压阀,是一款相对于其他减压阀来算操作非常简单的一款阀门,直接作用式减压阀,带有平膜片或波纹管。因为它是独立结构,因此无需在下游安装外部传感线。它是三种减压阀中体积小、使用经济的一种,专为中低流量设计。

二、减压阀中的活塞式减压阀:该类型的减压阀集两种阀―导阀和主阀―于一体。导阀的设计与直接作用式减压阀类似。来自导阀的排气压力作用在活塞上,使活塞打开主阀。

如果主阀较大,无法直接打开时,这种设计就会利用入口压力打开主阀。因此,这种类型的昆山立信隆减压阀,与直接作用式减压阀相比,在相同的管道尺寸下,容量更高。与直接作用式减压阀相同的是,减压阀内部感知压力,无须外部安装传感线。

三、减压阀中的薄膜式减压阀:在这种类型的蒸汽减压阀中,双膜片代替了内导式减压阀中的活塞。这个膜片面积能够打开更大的主阀,并且在相同的管道尺寸下,其容量比内导式活塞减压阀更大。另外,膜片对压力变化更为敏感,准确度可达+/-1%。准确性更高是由于下游传感线的定位,其所在位置气体或液体动荡更少。

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Copyright 2020 澳门新莆京app官网版下载最新 版权所有

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