Meter Types

Here’s Everything You Need to Know About Various Water Flow Meter Types

Centuries before the industrial revolution, people had the earliest concepts of utilizing flow meters and estimations for the very purpose of water irrigation and conservation as well as planting crops as a fundamental tool for survival.

Flow meters before modernization

Various countries have different usages for these types of equipment. The earliest Egyptians who lived were using small debris from the smaller dams surrounding the Nile River to measure the large body of water. According to their beliefs, it greatly determined whether there will be a bountiful harvest or not. Generally, flow meters function to monitor processes occurring in water flows and make are maintained at desired levels. Another purpose is to reduce spending on materials and enhance performance by checking the progress of the product condition. For the Chinese, the Qin dynasty, the Dujiangyan system of irrigation was ordered to be carried out in order to lessen the floods and save the water during 256 BC. The device built to implement such an approach was situated at the Min River, a stream that flows into the Yangtze River. The need to push the irrigation system was urgent because the water coming from the Min River would travel below the mountains of Min and quickly arrive at the plains in Chengdu. As a result, the silt was piled up, causing the affected area vulnerable to flooding whenever heavy rains came. The idea of the full implementation of the irrigation system was spearheaded by the governor and his son and their project efficiently directed the mechanism of the body of water through the means of division and providing channels rather than relying on the usual construction of dams. The method was very effective to the point that it was practiced til this day and it currently supplies water to 5,300 square kilometers of land.

During modernization

There were upgraded changes to flow meters as soon as the 1700s came. Differential pressure, the Venturi tube, Orifice plates as well as the Tollbar and Parshall flumes were all developed to effectively and accurately measure water flow but only differ in its inventors and the equations used to calculate the velocity of different phases of matter. When the 1960s came, the concept for flow meters concentrated less on the complexity of appearance and more on the accuracy. As the 1990s arrived, there was a huge demand for flow meters and it was noted that in 1989, at least 15 million were available by many industries globally.

Flow meters today

Pharmaceutical Commerce, petrochemical industries, metal engineering companies, and many more – flow meters can be applied in these establishments as they are very flexible. There may be innovations discovered to the usage of flow meters and its creation, however, the need for such and reliability in its measurement remains the same.

To know more about flow meters, have a read below.

Haven’t heard of flow meters?

Flow meters are apparatuses which simply estimate the liquid mass or gas volume and are usually also called with varying terms in different industries like flow indicator or gauge, liquid meter, or sensors. This is because flow meters are very versatile, these devices can measure different phases of matter. Furthermore, these metric devices can also be utilized to measure flowing components in open areas or in closed ones like pipes and tunnel-like passageways.

They are heavily relied upon by plumbers or water and gas engineers because of its close to exact measurements, speed, and versatility.

How many flow meter types are used by companies like SmartMeasurement and others nowadays?

Today, there exists more than one hundred flow meter types utilized anywhere in the world and are categorized into various types depending on its application but the main forms of meters are the following:

1. Mechanical

Mechanical flow meters are those built with arranged locomotive components used to efficiently measure the flow of liquid. Common types of mechanical flow meters are listed below:

a. Positive displacement – These flow meters function by enumeration and separation of a specified gas or liquid volumes and the flow measurement is acquired by individually listing the number of valid separated volumes. Moreover, these meters do not require electricity to operate and installation pipes for its set-up. You can repeat the measuring process and the measurement is still accurate when you use this meter.

b. Mass – This flow meter makes use of the parts containing the gas or liquid to measure the volume. These highly rely on components in order to calculate the measurement. These types of meters are commonly found in industries that deal with chemicals.

c. Differential Pressure – The measurement for this meter is done by partially obstructing the pathway of liquid within a channel in order to be able to form a static pressure distinction between the upward and downward flow part of the equipment. The flow rate is determined by calculating the difference between the two differential pressures. The less complex appearance of this meter is a great advantage and affordability.

d. Velocity – From the name itself, it identifies the flow velocity of the liquid and its sensor is less perceptive once the movement of the substance becomes quicker. Different types of these meters include ultrasonic, electromagnetic, turbine, vortex, and paddlewheel.

2. Optical

Very reliable when operated through pipes, it is assisted by an added device called the Laser-Two-Focus or L2F which utilizes laser rays for sensing the particles coming from the light diffusion brought by the moving liquid for accurate measurement.

3. Open Channel

It is usually used in open areas to measure the flow rate at the end of the water pathway. It is also applicable in closed areas that are not entirely filled with liquid. These are mainly availed by water industries that get their supply from large bodies of water like streams, lakes, and rivers.

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