Controlling and measuring the flow rate of fluids through pipes and tanks is important for the optimal use of cooling and heating equipment such as heat exchangers. In the following, the technical specifications, brands, how to choose, and the price of all types of flow control and measurement equipment are presented.
Flow Control Review, Selection, and Pricing
If you want to use flow control equipment to measure the amount of flow rate of fluids passing through pipes and tanks you should know what flow control with how much accuracy, brand, price, and specifications is better for you.
Stay with us in the rest of this article to answer all your questions regarding the purchase price, technical specifications, and the best types of flow control equipment you need.
One of the needs in various industries to measure the flow rate of fluids through pipes and tanks is the flowmeter, which is a device that measures the flow rate of a fluid (water, oil, acid, fuel, gas, etc.).
Flowmeters include sensors, transducers, and transmitters. To measure the amount of fluid, the sensor first senses the fluid and sends it to the transducer; the transducer converts this physical quantity into an electrical pulse or a mechanical quantity that can be measured.
Finally, the transmitter receives this quantity and converts it into a signal suitable for the control system.
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Factors to Keep in Mind When Buying a Flowmeter
When buying a flowmeter keep the following factors in mind:
Electrical conductivity
Fluid density
Fluid working temperature
Fluid working pressure
Fluid viscosity
Fluid friction with the passage channel
Fluid Acidity
Different Types of Flowmeters
There are 4 main types of flowmeters which are as follows:
Speed flowmeter
Mass flowmeter
Volume flowmeter
Inferential flowmeter
Types of Speed Flowmeters
Ultrasonic Flowmeter: In this method, the flowmeter sends ultrasonic waves with a specific frequency to the fluid, and in return, by measuring the change in the frequency of the return waves, it calculates the speed, as a result, the flow rate of the fluid is measured.
Turbine Flowmeter: In this method, by measuring the rotation speed of the turbine blades when the fluid is passing and its ratio with the speed of the fluid passing through, it calculates the volume of fluid flow.
Electromagnetic Flowmeter: In this method, an electromagnet creates a magnetic field perpendicular to the flow; then, by measuring the voltage proportional to the speed created in the conducting fluids, it calculates the volume flow. Attention should be paid to the minimum fluid conductivity and fluid speed in this method.
Vortex Flowmeter: In this method, electric pulses are produced by creating an obstacle in the way of the fluid, and the fluid speed and volume are calculated.
Types of Mass Flowmeters
Coriolis Mass Flowmeter: In this method, the device measures the mass flow based on the Coriolis acceleration phenomenon. A flexible tube is placed in the fluid path, and by measuring the Coriolis force resulting from the passing flow, which is caused by the oscillation perpendicular to the direction of the fluid, passing through this tube, the mass flow rate of the fluid is measured.
Thermal Mass Flowmeter: In this method, the basis of the work is based on parameters such as pressure, density, and adhesion. The transmitter calculates the mass flow based on the thermal energy supplied to the heater and the temperature difference measurement between two temperature sensors inside the fluid tank. These flowmeters are not suitable for acidic fluids due to the possibility of sensor wear and tear.
Types of Inferential Flowmeters
Differential Pressure Flowmeter: In this method, by placing an obstacle in the path of the fluid, the amount of pressure drop or difference is measured, and the mass flow of the fluid is calculated.
Variable Area Flowmeter: These flowmeters include a conical metal or glass tube containing a float to move according to the flow rate of the fluid. With the movement of this float, the flow rate of the fluid is obtained, and the mass flow of the fluid is calculated.
Types of Volume Flowmeters
Positive Displacement Flowmeter: In these flowmeters, there is a chamber that divides the flow into smaller units, which calculates the total flow by counting the number of volumetric units transferred. Their flowmeters have different types: arm flowmeters, disc flowmeters, rotary flowmeters, piston flowmeters, and vane flowmeters.
Buying Flow Control Equipment
On this website, technical information and prices for all types of flowmeters, flow-switches, transmitters, flow transmitters, etc. from reputable brands such as Anders Hauser, Rosemont, Honeywell, Corone, etc., have been presented for you to enjoy a good and smart shopping experience.
All products in the DamaTajhiz HVAC store come with the original warranty and the discounts desired by customers have already been included. If you have questions about flow control equipment, you can contact us through email or WhatsApp.
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