How to specify a control valve

被引：0
|
作者：
Lofland, Eric [1 ]
机构：
[1] Instrumentation and Controls Dept., Ambitech Engineering Corp., United States
来源：
Control | 2019年 / 32卷 / 03期
关键词：
Pneumatic actuators;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Valve specification begins with the control loop, which includes the transmitter that forwards signals to the computer, positioner and its actuator. The control valve assembly consists of the actuator that opens and closes the valve, positioner that converts electric signals to pneumatic signals, and valve that partially obstructs flow to control a process parameter.
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