Static Pressure

FIG. 7.6.6 Pressure profile through an orifice plate and the different methods of detecting the pressure drop.
FIG. 7.6.7 Segmental and eccentric orifice plates.

due to the excessive pumping costs. In these applications, venturi-type, high-recovery flow elements should be used.

The main advantages of orifices are their familiarity, simplicity, and the fact that they do not need calibration. The disadvantages include their low rangeability, low accuracy, high pressure drop, and potential plugging.

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