A digital water flow meter determines the amount of water that flows through a pipe. We have many flow water flow meters for you to choose from, depending on the application, maintenance needs, and budget.
These types are turbines, also called mechanical, Vortex, Ultrasonic, and Magnetic. You will also get to know everything you need to know about them to assist you in selecting one that fits your application.
Turbine/mechanical flowmeter to measure water flow
Turbine flow meters simply become the best common flowmeters around, just because these flow meters are much affordable than other types.
The mechanical flow meter determines the water flow via the movement of the turbine that uses a major propeller, blade, or split flow design. The flow rate of water is just like the speed of the blades.
When mechanical flow meters have to be used, they can become blocked when the water is dirty or more contaminated than expected.
Therefore, it is good not to use this type of flowmeter to determine the flow of slurry. Since these flow meters can become blocked, they are very continuously maintained compared to other flow meters.
Vortex flowmeter measures the flow of water
The vortex flowmeter is a special flowmeter that is used to measures the flow of water with the use of vortex flow.
As the liquid pushes over the obstacle, it will stimulate a vortex and form a vortex. The flowmeter has the sensor tab. As long as the vortex flows in the sensor tab, the tab may bend, which will stimulate a frequency output showing the flow rate of the water.
If you decide to go for a multivariable vortex flowmeter, then it will measure up to five separate variables that are useful for your specific functions.
These types are mass flow, temperature, density, flow rate, together with pressure. These meters are especially best when used in large pipelines.
Ultrasonic flow meter to measure water flow
This type of flow meter is designed to use the ultrasonic idea to determine the speed of water as it flows through the pipeline.
You should know the two major types of ultrasonic flow meters, involving runtime flow meters and clamp-on ultrasonic flow meters.
When you choose to go for a runtime flow meter, transfers a standard ultrasonic signal downstream before taking another signal upstream. The two signals are then rated to determine the water flow rate. This is commonly a pipeline digital water flow meter. It is also used for household water.
The clamp-on ultrasonic flow meters will be placed outside the pipe and are made to produce acoustic pulses via the pipe wall to get the determined value. As they can be installed outside the pipeline, they will be used for around any application also can be used together with larger pipelines.
The electromagnetic flowmeter measures water flow.
The electromagnetic flowmeter determines the speed of the water by using a simple magnetic field.
When water flows through a magnetic field, a voltage is generated. In this way, higher flow rates normally produce more voltage if sent through the electromagnetic flowmeter. The electronic system link to this meter will get the voltage signal then change it into volume flow.
Know that the water requires ions to stimulate voltage. This means that the electromagnetic flowmeter cannot be used having pure water without pollutants.
Positive Displacement Flowmeters
- This meter repeatedly entraps the liquid into a known quantity and then takes it out.
- The quantity of the liquid which has passed is based on the number of entrapments.
- The volume flow rate can be evaluated from the revolution rate of the mechanical device.
Thermal Mass Flowmeter
Work through managing the cooling effect of a gas stream as it passes over a hot transducer.
Gas flow passes over two PT100 RTD transducers.
The temperature transducer controls the actual gas process temperature, but the self-heated transducer is managed at a constant differential temperature with different currents through it.
The batter the mass flow passes over the heated transducer, the greater the current needed to maintain a constant differential temperature.
The determined heater current is then used as a measure of the gas mass flow rate.
Coriolis Mass Flowmeter
When a moving mass is taken to an oscillation perpendicular to its way of flow, Coriolis forces happen according to the mass flow.
When the pipe is rotating upward during the first half of a cycle, the liquid flowing into the meter stops the band; it is then forced by forcing it down on the pipe.
On the opposite part, the liquid moving out of the meter resists decreasing its vertical motion by pushing up on the tube. This action makes the tube twist.
This twisting movement is sensed through a pick-up and is directed to the mass flow rate.
Variable Area Flowmeters/ Rotameters
Rotameters are one of the most used popular flowmeter types. It contains a vertical glass or plastic tube. The size of the tube changes from top to bottom; due to what it got its name as variable area flowmeter. Inside the pipe, we have a free-moving metering float.
Conclusion
A good type of digital water flow meter to use will consider with the specific application. For instance, other flow meters operate well if measuring other things.
To know more, customers are recommended to read white papers, watch videos, and use selection tools to know the correct flow measurement device for their fluid and water flow application.