Where Globe and Butterfly control valve generally use? on what process condition basis different control valve use?

 

In my experience, for control of the flow of liquids, butterfly valves are typically used for on/off control only. Globe valves I assume would give you performance similar to a gate valve where you can regulate flow a little better.

You did not mention what you are trying to control the flow of (solid, liquid or gas).

 

I was taught that it was more a matter of how good of a shut off seal that you need. While you can get a really good seal with a butter fly it will never be as good as a ball valve.

Since liquids are easier to seal than gases butter flies are seldom used on gases.

Both types of valves are for on/off and neither prove great flow control. While it is possible to use both for control, for really good regulation you need a very different type of valve construction.

> You did not mention what you are trying to control the flow of (solid, liquid or gas). <

Solid flow control has got be a really neat trick. Maybe you meant slurries.