Question:

control valve selection?

what are the factors should be know to select a control valve for specified application

Answer:

There are numerous articles online that address this question from choosing the correct size to the correct actuator. Here are just a few:
control valve is an uni-directional (non-return) valve, some of the factors to be aware of before selecting it....identify application character, select the valve size, select the valve end connection, piping layout and valve orientation , maintenance requirement , actuation requirement , initial cost ..etc..
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