蝶阀的种类又很多，下面就给大家，来简单的介绍一下：双偏向蝶阀和中线蝶阀都是其中的一种，相信有大部分的人还是对双偏心蝶阀和中线蝶阀不是很清楚。
There are many kinds of butterfly valves. Here's a brief introduction: the double eccentric butterfly valve and the midline butterfly valve are both one of them. I believe that most people are still unclear about the double eccentric butterfly valve and the midline butterfly valve.
双偏心蝶阀：它是应用Z广泛的，在阀杆轴心既偏离蝶板、也偏离本体，双偏心的效果使阀门被开启后蝶板能迅即脱离阀座，大幅度地了蝶板与阀座的不必要的过度挤压、刮擦现象、减轻了开启阻距、降低了磨损、提高了阀座寿命，但是碟板通过挤压阀座造成的弹性变形产生的密封效果，对关闭的位置要求很高。
Double eccentric butterfly valve: it is widely used. When the valve stem axis deviates from both the center of the butterfly plate and the center of the body, the effect of double eccentric makes the butterfly plate quickly separate from the valve seat after the valve is opened, greatly eliminating unnecessary excessive squeezing and scraping between the butterfly plate and the valve seat, reducing the opening resistance, reducing wear, and improving the service life of the valve seat. However, the sealing effect of the disc plate is produced by the elastic deformation caused by squeezing the valve seat, The closing position is highly required.

中线型蝶阀：阀杆轴心，碟板，本体都是在同一位置，结构简单，缺点的碟板和阀座始终是处于挤压，刮擦状态，磨损快，但是因为其密封材料在使用上受到温度的限制。
Midline butterfly valve: the stem axis, disc center and body are all at the same position, which is simple in structure. The defective disc and valve seat are always in the extrusion, scraping state and wear fast, but their sealing materials are limited by temperature in use.
以上就是为大家介绍的有关上海良工阀门详细的介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以的态度,为您提供服务http://www.jnlgvf.com
The above is a detailed introduction to Shanghai Lianggong Valve, and we hope it will be helpful to you. If you have any questions, please contact us. We will provide you with our attitude http://www.jnlgvf.com