A turbine flowmeter is a velocity-type flow instrument used to measure the volume flow of low-viscosity liquids in closed pipes. It offers high accuracy, good repeatability, a simple structure, low pressure loss and convenient maintenance, and is widely used in petroleum, chemical, metallurgy, water supply and papermaking industries.

Liquid flowing through the meter drives a rotor (turbine) whose rotational speed is proportional to the flow velocity. A pickup sensor detects the rotating blades and generates pulses; the pulse frequency corresponds to the flow rate, and the total number of pulses corresponds to the total volume.

Turbine flowmeters are designed for clean, low-viscosity liquids. Unlike electromagnetic flowmeters, they do not require the liquid to be conductive, so they can also be used for liquids such as light oils and solvents, in addition to water and water-based liquids. Please send us your liquid and its viscosity for confirmation.

It is not recommended for high-viscosity liquids, liquids containing fibers or solid particles, or liquids that may damage the rotor. The MIK-LWGY series is designed for liquids; for gases or steam, consider our vortex flowmeters.

• MIK-LWGY Turbine flowmeter, flange connection: liquid turbine flowmeter for flanged pipelines
• MIK-LWGY Turbine flowmeter, thread connection: liquid turbine flowmeter with simple threaded installation
• MIK-LWGY Turbine flow sensor, thread connection: turbine flow sensor for liquid volume flow measurement
• MIK-FLM200 Micro turbine flow meter: small pipes (DN10–DN25), measures flow and temperature, with OLED display
• MIK-LZ Metal tube rotameter: variable-area flowmeter for volumetric flow in closed pipes
• FRM200 Micro metal tube float flowmeter: small gas and liquid flows, all-metal construction

If you are unsure, send us your application details and our engineers will recommend a model.

Thread connections are generally used on smaller pipes and allow simple, quick installation. Flange connections are generally preferred on larger pipes or where a more robust connection is required. The choice depends on your pipe size, pressure and existing piping standard.

The MIK-FLM200 is a compact turbine flowmeter for DN10–DN25 pipes. It measures both flow and temperature of water, water-based liquids such as glycol, and lubricants, with a flow accuracy of ±1.5%. It provides 4–20 mA or RS485 output, an alarm switch output, and a real-time OLED display.

A turbine flowmeter measures flow from the speed of a rotating rotor and is typically used where accurate volume measurement and electronic output are needed. A rotameter, such as the MIK-LZ metal tube rotameter, is a variable-area flowmeter: a float moves in a tapered tube as the flow changes. The FRM200 is designed for small gas and liquid flows.

• Turbine: clean, low-viscosity liquids, including non-conductive liquids such as light oils; has a rotating rotor.
• Electromagnetic: conductive liquids, including dirty water and slurries; no moving parts; cannot measure non-conductive liquids.

The MIK-LWGY series and MIK-FLM200 are designed for liquids. For small gas flows, see the FRM200 micro metal tube float flowmeter. For gas measurement in larger pipes, consider our vortex flowmeters or mass flowmeters.

Yes. Turbine flowmeters are calibrated for low-viscosity liquids, and higher viscosity can affect the rotor speed and measurement accuracy. Please tell us the viscosity of your liquid at operating temperature so we can confirm suitability.

Because the rotor and bearings can be damaged by particles, a filter or strainer is generally recommended upstream of the meter, especially for liquids that may contain debris.

• Install the meter with the flow direction arrow matching the actual flow.
• Provide sufficient straight pipe upstream and downstream of the meter.
• Make sure the pipe is always full of liquid and free of air bubbles.
• Install a filter upstream when the liquid may contain particles.
• Avoid strong vibration and strong magnetic fields near the pickup sensor.

Please follow the installation manual of the selected model.

• High accuracy and good repeatability
• Low pressure loss and low maintenance cost
• Simple structure, high reliability and good long-term stability
• No zero drift and stable performance
• Multiple protection modes and surge resistance

Output options depend on the model. For example, the MIK-FLM200 provides 4–20 mA or RS485 output and an alarm switch output. Please check the product page of each model or tell us the signals your system requires.

Turbine flowmeters have a simple structure and are easy to maintain. Because the rotor and bearings are moving parts, periodic inspection is recommended, especially for liquids that may contain particles.

Typical industries include petroleum, chemical, metallurgy, water supply and papermaking, as well as cooling, lubrication and other liquid monitoring applications.

To help us select the correct model, please provide:

• Liquid name, viscosity and cleanliness
• Flow range (min / normal / max)
• Pipe size and connection type (flange or thread)
• Liquid temperature and working pressure
• Output signal and power supply requirements
• Display requirements
• Hazardous area requirements (if any)
• Quantity

Send your requirements to info@asmik.com or contact us via WhatsApp at +86 13325716921.