In any industry we may come across various types of flow measuring instruments depending on
where it is used and the medium that is the fluid which it is measuring. For example, for conductive
flows we may choose electromagnetic type of flow meter. In another application we know that
ultrasonic flow meters are highly accurate but if the area is prone to high vibrations then despite of
their high accuracy we may not choose ultrasonic type of flow meters. Similarly a vortex type of
flowmeter may not be suitable for pulsating flow. Thus to select a most suited FLOW METER
SUPPLIERS IN JORDAN for your process requirement you must have to have the knowledge of their
basic principle.
We all know that fluid basically liquid or gas flows from high pressure to low pressure. So as per fluid
mechanics fluid flow can be defined as the motion of liquid or gas under unbalanced forces. And a
device that is used to measure the flow of fluid is called Flow meter. Means, it indicates the amount
of liquid or gas that passes through a pipeline in a given period of time. If the velocity is increasing,
the flow is increasing and vice versa. This principle gives birth to velocity type of flow meters that is
ultrasonic flow meter. Also we know that flow is directly proportional to area and this principle is
used in variable area flow meter, that is rota meters to measure flow.
Moreover as the pressure increases the velocity decreases thus pressure and velocity are inversely
proportional to each other. Which implies that flow is also very inversely proportional to pressure.
This principle is widely used in power plant industry for flow measurement. Some of the examples
are DP type flow meters, flow nozzles etc.
Based on the principle the flow meter can be broadly classified as velocity type flow meters, variable
area flow meter, and differential pressure flow meters. There is one another important type of flow
meter is Mass Flow Meter. So in velocity type flow meters flow is directly proportional to velocity. In
variable flow meter flow is directly proportional to area. Flow is inversely proportional to pressure
and used in pressure based flow measurement. And mass flow measurement is directly in terms of
mass instead of volumetric flow measurement.