Q. A control valve shows the flow is directly proportional to the valve opening for a constant pressure drop is

A
Linear valve
B
Quick opening valve
C
Equal percentage valve
D
None of the above
Solution:

The flow rate is directly proportional to the amount the disc travels. Linear flow characteristics produce equal change in flow per unit of valve stroke. If the disc is open 50%, the flow rate is at 50% of maximum flow.

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