​There are many different types of level indicators, each with its own application.

Classic venturi tube is also called the classical venturi tube, used to call standard venturi tube. Used to measure stable single-phase fluid flow in a closed pipe, often used to measure air, gas, gas, water and other fluid flow.

“If you can’t measure it, you can’t manage it.” An often heard quote in industry and particularly relevant to flow measurement.

Magnetic level gauges work on the principle of communicating vessels, therefore the level in the measuring chamber will be the same as the level in the vessel.

The Orifice plate is differential pressure flow measurement device. An orifice is simply a smooth disc with a round, sharp-edged inflow aperture and mounting rings.

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In order to read only static pressure in a pipe the tapping hole must not be exposed to the velocity component of the flow. Usually a pressure gauge is mounted in a hole drilled through the wall, square to the wall. At the inside wall of a pipe the veloci