Differential Pressure Gauge
Differential pressure measurement is a universal flow measurement for liquids, gases and vapors, composed of flow meters that work on the principle of partially obstructing the flow in a pipe. They introduce a constriction in the pipe that creates a pressure drop across the flow meter. When the flow increases, more pressure drop is created, and as a result, impulse piping routes the upstream and downstream pressures of the flow meter to the transmitter that measures the differential pressure to determine the fluid flow. Differential pressure flow meters always provides accurate results even with large bores, high temperature and extreme pressure.