Digital flow meters measure and display flow rate of industrial liquid and gas. Different sensors include turbine, thermal mass, electromagnetic, ultrasonic, orifice plate, venturi. The different designs of the flowmeters have a variety of applications. Sino-Instrument has a wide range of digital flow meters with 4-20ma, RS485 or others output. Digital flow meters works for both liquid and gas, like water, oil, natural gas, oxygen, diesel fuel, and so on. And all pipe size are available, for 1/2″, 2inch, to 8 inch. If you need Technical Support to choose flow meters, please contact us.

Choose the Right Digital Flowmeter

Choose the Digital Flowmeter by applications:

Know More about Flow Measurement

More Digital flow meter working principle

ultrasonic flowmeter
Ultrasonic flow measurement, industrial inline flow measurement.
Differential Pressure Flow Meters
Differential Pressure (DP) Flow Meter Technology –
Reliable Flow Solutions Across Many Applications

A flow meter (or flow sensor) is an instrument used to measure linear, nonlinear,mass or volumetric flow rate of a liquid or a gas.When choosing flow meters,one should consider such intangible factors as familiarity of plant personnel,their experience with calibration and maintenance, spare parts availability,and mean time between failure history, etc., at the particular plant site.It is also recommended that the cost of the installation be computed,only after taking these stepsThe different sensors include dial, in-line, ultrasonic, orifice plate,totalizing meters, variable area, venturi, or with switch output.The different designs of the flow meters have a variety of applications.

What is a Flow Meter and how does it work?

Flowmeter types

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

How to choose your flow meters?

Important factors when selecting flow metering devices are

  • accuracy
  • cost
  • legal constraints
  • flow rate range
  • head loss
  • operating requirements
  • maintenance
  • lifetime

These factors are more or less related to each other. Example – the cost of flow meters increases with accuracy and lifetime quality.

Sino-Instrument offers over 50 flow meter for level measurement.

About 50% of these are differential pressure flow meters,

40% is the liquid flow sensor,

and 20% are Ultrasonic Level Transmitter and mass flow meter.

A wide variety of 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.