Selection Guide
What is a mechanical flow meter?
Mechanical flow meters are a type of flow meters that use arrangement moving parts to measure flow. The fluid passes through a series of gears or chambers (positive displacement or PD) or through a rotating turbine or rotor. Mechanical flowmeter is different from electromagnetic and ultrasonic in principle. Mechanical flow meters easily monitor liquid flow rates for water, fuels, viscous fluids and more.
Mechanical flow meter types
There are many types of flow meters.
The electromagnetic flowmeter is based on the electromagnetic principle. When a conductive fluid flows through an electromagnetic field, the velocity of the fluid can be obtained by measuring the voltage.
Ultrasonic flow meters use the principle of ultrasonic acoustics to measure flow velocity. The mechanical flow meter is a relative concept.
Compared with other flow meters, the mechanical flowmeter relies on the rotation and displacement of mechanical parts to measure the flow rate. Common mechanical flow meters have the following categories.
Read more about: Beginner’s Guide: Variable area flow meter
Featured Mechanical Flow Meters
Extended reading: High-Temperature Oval Gear Heating oil Flow Meter
Of course, if you are not clear about the principle and difference of the above flow meters. Can not choose the appropriate Mechanical Flow Meters. Then, you can also choose the appropriate Mechanical Flow Meters according to the fluid conditions that need to be measured.
Extended reading:
What is the K-factor in a flow meter?
Cryogenic Flow Meters|Liquid Nitrogen-Liquid Oxygen-LNG fluids
Below are some of our experience sharing, hoping to help you find the right Mechanical Flow Meters.
In most cases, we will choose an electromagnetic flowmeter to measure the flow rate of water. But if it is pure water and cannot conduct electricity, then an electromagnetic flowmeter cannot be used. You can choose a turbine flowmeter to measure.
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Diesel Fuel flow meters are digital flow meters for liquid fuel consumption measurement.
Most widely used types are mechanical and digital inline fuel meters. Differential flow sensors are avilable. Like: the turbine, positive displacement (oval gear), Coriolis, and differential pressure flow meters.
Read more about: Diesel Fuel Flow Meters
The oval gear flowmeter is particularly suitable for measuring high viscosity media. And it is not sensitive to changes in the viscosity of the liquid being measured.
Measurable medium:
Fuel, diesel, gasoline, heat transfer oil, hydraulic oil, kerosene, tar, petroleum, crude oil, asphalt, resin and other liquids. Especially suitable for the measurement of high viscosity liquids.
Read more about:
Mechanical flow meters that can measure gas flow mainly include metal float flow meters and turbine gas flow meters.
A Rotameter flow meter is a variable area flow meter based on float position measurement. It is suitable for liquid and gas volumetric flow measurement and control.
Gas turbine flow meter is a velocity flow meter that measures gas flow. For natural gas, nitrogen, and gas trade measurement.
Relatively speaking, the cost of gas turbine flow meters is higher than that of Rotameter flow meters. But the service life will be longer.
For cryogenic fluids, such as liquid nitrogen, liquid oxygen, etc. It can reach -196 degrees Celsius.
For cryogenic fluids, we provide gear flow meters and low temperature turbine flow meters.
You can choose the right one according to the flow range.
FAQ
What are the different types of flow meters?
Flow Metering Principals
Differential Pressure Flowmeters
Velocity Flowmeters
Positive Displacement Flowmeters
Mass Flowmeters
For Open Channel Flowmeters – weirs, flumes, submerged orifices, current meters, acoustic flow meters, and more
For different working principle, We offer different types of flow meters, like:
Differential Pressure Flow Meters
Orifice Plate
Venturi Tube
Flow Nozzles
The Sonic Nozzle – Critical (Choked) Flow Nozzle
Calorimetric Flowmeter
Ultrasonic Doppler Flowmeter
Positive Displacement Flowmeter
Variable Area Flowmeter or Rotameter
Velocity Flowmeters
Pitot Tubes
Electromagnetic Flowmeter
Turbine Flowmeter
Vortex Flow Meter
Thermal Flowmeter
Coriolis Flowmeter
Mass Flowmeters
Open Channel Flowmeters
What are water meters used for?
Residential water meters can measure the water consumption of a household.
Industrial water meters mainly refer to water flow meters. Can measure the amount of industrial water. For example, the amount of wastewater discharged.
What is a digital flow meter?
Digital flow meter is a flow meter with digital display and signal output. Digital flow meter refers to a flow meter with digital display and signal output.Different digital flow sensors include turbine, thermal mass, electromagnetic, ultrasonic, orifice plate, venturi. The different designs of the flowmeters have a variety of applications. With 4-20ma, RS485, or others output.
Mechanical flow meter price
Sino-Inst offers Mechanical Flow Meters with best price. Please contact our sale engineer for quotation.
Sino-Inst offers over 50 Mechanical Flow Meters for flow measurement. About 50% of these are differential pressure flow meters, 40% is the turbine flow sensor, and 20% are dp flow meters and gear flow meters.
A wide variety of Mechanical Flow Meters options are available to you, such as free samples, paid samples.
Sino-Instrument is a globally recognized supplier and manufacturer of flow measurement instrumentation, located in China.