There are lots of final control elements to choose from, and which one will be right for your process depends on a lot of things. This article will list the most common final control element types and give you some pointers on how to choose one.
Common final control element types
Control valve as a final control element
The control valve appears in various segments as a final control element to control all kinds of gases and liquids. These come with a vast list of plugs, actuators, positioners, materials, and bodies. So you could probably mix and match a solution from the options
Variable frequency drive as a final control element
The variable frequency drive (VFD) can control the velocity of air conditioning motors. And if you have a pump or fan connected to the motor, then the VFD can help with those too. As you can see, the variable frequency drive can bring a lot of benefits to your process.
Solenoid valve as a final control element
With an on/off control, you can apply an on/off valve or a solenoid valve, depending on the application. So these simple valves may provide just what you need.
Damper as a final control element
For air control, a damper comes up as a popular solution for a final control element. This device works specifically for air control in several scenarios on a variety of pipes.
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