Orifice plate with vent and drain holes

Basics of Orifice Plates

Orifice plates are typically sandwiched between two flanges of a pipe joint, allowing for easy installation for fluid to flow through the pipe.

Venturi Flow Theory

Facts About Orifice Flow Meters

The orifice plate is for flow measurement : an inexpensive yet effective primary sensing element. Study Orifice Flow Meters and Sensors.