生产现场常用到的几种执行机构和一些控制阀的原理及适用场合。
The control valve is the "hands and feet" to realize the automation of production process. It is installed on the production site, always in contact with the medium, and is used to adjust the flow. What are the commonly used control valves and actuators? Today, we will introduce the principle and application of several actuators and control valves commonly used in the production site.
1. 薄膜执行机构
1. Membrane actuator
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2.带阀门定位器的活塞式执行机构
2. Piston actuator with valve positioner
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3.碟阀
3. Butterfly valve
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蝶阀的阀瓣是圆盘, 围绕阀座内的一个轴旋转, 旋角的大小, 便是阀门的开闭度。
The disc of butterfly valve is a disc, which revolves around an axis in the valve seat. The size of rotation angle is the opening and closing degree of the valve.