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Manual Flow Control Valves

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mkp

Mechanical
Jan 17, 2001
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I am using Bellow Sealed Type Manual Flow control Valves for a Thermic Fluid Circuit

I need to know the following with respect to manual flow control valves:-

1.Should the valves be one size lower than the pipe size?

2. What should be the pressure drop across the valve for a good flow control

3. What kind of seating should be provided for the valve?

4. What flow charcterstics should the valve have, like equal percentage , Linear, etc.

5. What is the principle of control of flow in a manual flow control valve
 
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