| Flow Meter Types |
Type of Liquid Measured |
Range(mm) |
Output |
Accuract |
Features |
Advantages |
Applications |
| Electromagnetic Flow Meter |
Conductive liquids (e.g., water, wastewater, slurries) |
DN10-3000 |
Pulse, Analog, Frequency, alarm, wireless |
±0.2%- ±0.5% |
Non-intrusive, no moving parts, high accuracy |
No pressure drop, suitable for dirty/corrosive fluids |
Water and wastewater treatment, chemical processing, mining, paper industry |
| Ultrasonic Flow Meter |
All types of liquids (clean/dirty, conductive/non-conductive) |
DN15-6000 |
Analog, digital, pulse |
±0.5%-±1.0% |
Non-invasive, clamp-on or inline, uses sound waves |
No pressure drop, suitable for large diameter pipes |
Water and wastewater, gasoline, food and beverage |
| Liquid Turbine Flow Meter |
Clean, low-viscosity liquids (e.g., water, light oils) |
DN4-200 |
Pulse,analog, digital |
±0.5% - ±1.0% |
Mechanical, rotating turbine, requires clean fluids |
High accuracy, good repeatability |
Fuel measurement, chemical processing, water distribution |
| Coriolis Mass Flow Meter |
Any liquid, including slurries and high-viscosity fluids |
DN3-250 |
Pulse, analog, digital |
±0.1%~±0.5% |
Measures mass flow using Coriolis effect, high accuracy |
Direct mass flow measurement, measures density and temperature |
Chemical processing, food and beverage, pharmaceuticals |
| Oval Gear Flow Meter |
Viscous and non-conductive liquids (e.g., oils, syrups) |
DN10-150 |
Analog, digital, pulse |
±0.5%-±1.0% |
Mechanical, intermeshing gears, accurate for viscous fluids |
High accuracy, good for high-viscosity fluids |
Oil and gas, food and beverage, chemical processing |
| Vortex Flow Meter |
Liquids, gases, and steam |
DN15-200 |
Pulse,analog, digital |
±1.5% |
Measures vortices shed by a bluff body, no moving parts |
Suitable for high-temperature/pressure, various fluids |
Steam flow measurement, HVAC systems, chemical processing |
| Rotameter/Float Flow Meter |
Low-viscosity liquids and gases |
DN15-500 |
Analog,digital |
±0.5% - ±1.0% |
Simple, mechanical with float in a tapered tube, direct reading scale |
Simple, low cost, no power required |
Laboratory measurements, water treatment, air sampling |
| Double Rotor Flow Meter |
Lliquids with varying viscosities, such as thin oil, light oil, or crude oil with high sand and water content. |
DN40-DN250 |
Analog, Pulse, RS485 |
0.5% / 0.2% |
Handles large viscosity range; high flow rate; long service life; minimal pressure loss; remote transmission up to 1,000 meters with pulse signal output. |
Stable operation; low noise; minimal wear; high accuracy; allows fine particles to pass; prevents meter sticking. |
Measurement of various oils in industrial processes; high viscosity liquids in chemical and petrochemical industries; crude oil with sand and water; remote monitoring. |
| Volumetric Flow Meter |
Various liquids |
230-380-750-1300L/min |
|
±0.2% |
Measures volume, includes positive displacement meters |
Accurate for total volume measurement, handles viscous fluids |
Custody transfer, fuel measurement, chemical dosing |
| Open Channel Ultrasonic Flow Meter |
Liquids in open channels (e.g., rivers, streams, wastewater) |
0.1l/s~99999.99m/h |
Analog, Relay,RS485, RS232, MODBUS |
0.25%- 0.5%F.S. |
Uses ultrasonic waves, non-contact measurement |
Suitable for open channels, no obstruction to flow |
Wastewater treatment, irrigation channels, environmental monitoring |
| Open Channel Radar Flow Meter |
Liquids in open channels |
40m |
Analog, digital, wireless |
±0.01m/s,±2mm |
Uses radar waves, non-contact measurement |
High accuracy in harsh conditions, suitable for large channels |
Flood monitoring, irrigation systems, environmental studies |
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