Flow Meter terms vary, from mass flow to measure flow and behind. That is why we have split down each flowmeter type for you to choose which sort of meter is the most proper for your unique use.
We give an entire industry-leading flow division tool from Coriolis flow meters to magnetic flow meters.
How does a flow meter work
Flowmeter includes tools such as transducer and conductor. The transducer will sense the fluid that goes by the primary tool. The transmitter will get a sign from the transducer, so the transducer varies this sign into a proper flow signal. So a flow meter can be viewed as the alliance of these physical tools.
What are the circumstances that affect a flow meter choice?
- The state of the liquid-like gas, fluid, steam
- Flow states and flow scale, flow requirements like clean, dirty, rough, viscous will affect
- Method states like pressure and temperature
- Selected material mainly in the form of corrosive liquid
- Pipe size and power
- Repeatability and cost
What are the kinds of flow meters?
Flow meters can be split into differential pressure meters, variable area meters, positive displacement meters, magnetic, turbine, ultrasonic, vortex, and Coriolis. In differential pressure meters, a constraint is used to form a pressure drop. So the flow rate can be defined by holding the pressure drop across the state. In positive displacement meters, the measuring method takes place by accuracy fitted rotors as flow regulating factors.
Orifice meters are usually used as flow meters. An orifice plate is a plate with a hole in it set in the flow. It contracts the flow and regulates the pressure differential over the system gives the flow rate. It is used widely because of its simple shape and easy making. Orifice kind can be used for clean fluid, gases, and steam. However, it can not be applied for multi-phase liquids. This meter can be used to manage the rate of flow by a pipe. Orifice plate fixed in the pipeline produces a pressure differential as the fluid flows by it, and the differential pressure is equal to the speed of flow.
Venturi tubes can manage large flow amounts at low-pressure drops. It is used to resolve the amount of flow in a pipeline. In this meter, the liquid is stimulated by the converging cone, and the pressure difference between the upstream side of the cone and the trachea is covered, and it gives the sign for the flow rate. Pressure restoration of the venturi meter better than the opening plate. Pressure loss is low for venture meter. Venturi tubes are proper for fresh, dirty, and thick liquid. High pressure and energy restoration make the venture meter suitable where only a few pressure heads are available.
Magnetic flow meter
The magnetic flowmeter relies on faraday’s electromagnetic induction law, stating that voltage will be produced when a conductor passes by a magnetic field. Stimulated coils outside the flow tube form the fluid that acts as the guide and the magnetic field. The voltage provided is directly comparable to the flow rate. Two electrodes are connected to the pipe wall to know the voltage, covered by a secondary part. These flow meters can include corrosive fluids and slurries.
Ultrasonic waves can create any material like solid, fluid, gases, and this part of the wave is used to regulate the liquid flow in a pipe. The ultrasonic sign is sent to the tube at an angle, and the time taken for the signal to reach from one side to another is regulated. The distinction between the transition time over the pipe and the sign walking in the opposite path equals the flow rate.
This flow meter is also known as oscillatory flow meters. It uses the essential aspects when a fluid is enabled to flow in a bluff thing. The vortex shedding rate is directly proportional to the speed of the liquid running through there. This meter is extensively used to regulate the steam flow that you can use everywhere.
In this meter, the analysis is done using newton’s second law, which is force= mass × acceleration. Mass analysis is done because it is not sensitive to variations in temperature, weight, thickness, and weight. Therefore, it can be used to hold fluids, slurries, and gases. The fluid which runs by the tube will begin to vibrate in an angular harmonic oscillation. Due to the Coriolis force, the tubes will distort, and additional tubes will turn. Another vibration element is added to the oscillation, and this element will produce a phase shift on some areas of tubes which can be marked with sensors.
Turbine flow meter
In this flow meter, the liquid that runs by the pipe gets in contact with the turbine’s vanes. Then the turbine will begin to turn and rotate and measure the flow. The spin rate is calculated. Various blade rotors are fixed with a pipe perpendicular to the fluid flow. The rotational speed is the direct function of the flow rate, and they are sensed by magnetic pick-up or photoelectric cells.
Thermal flow meter
Thermal flow meters can hold gas and fluid flow. This meter runs freely of density, pressure, and thickness. This meter uses a heated sensing part that is separated from the fluid flow path. The flow stream transfers heat from the sensing part, and the transferred heat is directly equal to the mass flow rate.
Considerations to Make When Picking a Flowmeter
When you see a flowmeter, you must recognize some essential parts to make the best option for your company’s use. If one flowmeter ran flawlessly for every condition, there would not be infinite other flowmeter kinds to pick from. The truth is that there are many kinds of flowmeters, and their uses differ. Each flowmeter gives different benefits and abilities that make it a precious choice in certain situations.
To begin, you need to view the features of the fluid you will be holding. First, is the liquid fluid, a gas, or steam? How thick or dense is it? Does it include any contaminants, such as air bubbles or trash, that could influence the study?
Once you understand the fluid variables, you plan to hold. You can start to see for a flowmeter meant to deliver an actual reading for your use.
In many cases, you will have many choices to pick from, all of which can work with your site. However, some may give a higher degree of efficiency than others. Pay attention to the level of varying precision flowmeters can provide.
There are many kinds of flow meters, all of which give different benefits and potential effects. A proper flowmeter can serve your company to keep track of the flow speed of the water, chemicals, or any fluid that moves by your plant’s pipes. To assure your flowmeter proceeds to carry on its essential use, be sure to address possible issues as soon as they arise.
Proteus Services can instantly give you a certified technician who has the expertise to fix your damaged flow meter so you can sustain your services. Read more about our flow meter repair services and reach us today.