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Name four general (not technical) criteria that would you
consider important, when deciding upon a particular control
valve?

Answer Posted / rajesh

the fluid medium to be used

the fluid physical properties ( viscosity , density ,
temperature etc )

the frequency of application of valve i.e the no of times
opened or closed in a hour

the flow rate , pressure desired c time , volume to be
transferred in specific time for flowing media etc

the operation to control valve
manual , automatic , pneumatic , hydraulic etc

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