Control Valve Flow Characteristics:
- Equal Percentage Opening
- Linear Opening
- Quick Opening.
1.Equal Percentage Opening:
Flow capacity increases exponentially with valve trim travel. Equal increments of valve travel produce equal percentage changes in the existing Cv.
2. Linear Opening:
Flow capacity increases with valve travel.
3. Quick Opening:
Produce large changes in the flow with small changes in the lift. It is limited to on/off service,
