In the flow measurement sector, devices called flow meters are used to measure, sense, or control flow rate in gas and liquid substances. Flow meters can either be in line water meter types or insertion meter types. Flow meters which are inserted into the flow to measure flow rate, are known as insertion flow meters. These types of flow meters are not usually fixed into the pipeline. The meter operator can move it from one area to another. Insertion flow meters are great devices to work with since there is no installation cost. The cost of maintenance is low in these types of flow meters because they don’t have moving parts.
In line water meter types operate in one static area. This means that you can’t move them from one area to another when you are measuring flow rate. Fluids that require measurement need to go through an inline flow meter for flow rate reading to take place. Unlike insertion flow meters which need a certain length of straight line before and after the flow meter, online flow meters don’t need such a requirement. Inline water flow meter types are more efficient than insertion flow meters because they provide higher accuracy levels. That said, let’s look at a few examples of in-line water flow meters that are used in various industries:
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Inline Water Flow Meter Types
Inline water flow meters are available in two types: digital inline flow meters and mechanical flow meters. Here are some of them:
Ultrasonic flow meters
These types of flow meters work digitally when reading flow rate. They are usually used to measure flow rate in viscous, clean, and highly loaded liquids. When measuring flow rate, sound waves are used. They measure flow rate in volume and velocity of fluids and liquids flowing through tubes and pipes. During low flow, waves that transmit in this flow meter are always the same. Highly viscous fluids won’t work well with this type of flow meter.
Paddlewheel flow meters
In line water meter types can also work mechanically to provide a flow rate. Paddlewheel flow meters are examples of inline flow meters that work mechanically when reading flow rate. They are made up of several parts. This means that they have moving parts. Depending on the fluid pressure, the paddle can help either spin fast or slow. The number of rotations is directly proportional to the fluid’s flow rate. They require regular maintenance because they have moving parts that usually clog.
Open Channel Flow Meters
Open channel flow meters measure flow rate in channels that are not enclosed or tapped in pipeline systems. They are usually insertion types of flow meters. Examples of these flow meter types include flume and weir flow meters. Fluids in this type of flow move freely and consist mainly of water. Open channels include tunnels, rivers, canals, and non-pressurized sewers. The in-depth technique of flow measurement is what is used in these types of flowmeters to find flow rate. The depth of water in open channel flow meters helps to find the instantaneous flow rate of the measured fluid.
Velocity Flow Meters
Examples of flow meters that fall under velocity flow meters include transit time, momentum exchange, vortex shedding, turbine, swirl, ultrasonic, and Doppler flow meters. To get the flow rate in these types of flow meters, you need to obtain the speed of the fluid flow at different points.
Also, You Can Read:- Method and Technology of Thermal Liquid Mass Flow Meter
Inline water flow meter types are ideal flow meters because they provide higher accuracies. Before you decide to purchase any sort of flow meter, it is good to understand its working principle. Proteus industries often advise clients who have no expertise in flow rate. If you require the best flow meter services at affordable prices, then you can rely fully on in line water meter types that are installed in the flow line rather than inserted in the flow.
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