Para asistencia en español, llame al +52 (442) 295-1567 o envíe un correo electrónico a

How Does a Flow Meter Work?

How Does a Flow Meter Work?

If you are looking to learn about how flow meters work, the answer is probably not as simple or straightforward as you would like it to be. A very over-generalized answer is that they work by employing one of many technological principles of operation to measure how much flow of a liquid, gas, or steam is moving through something, generally a pipe. To know exactly how a particular flow meter works, you would need to know the measurement principle, or technology type, of the flow meter.

Flow meters measure by mass or volume. Each of the different flow meter technology types will fall under one of these two category types. Listed below are some of the more common flow meter technologies. For an in-depth explanation of how each flow meter technology operates, visit one of our educational flow meter technology pages by clicking on technology-type link below.

What are the Types of Flow Meter Technolgies?

Not Sure Where to Go From Here?

Finding the ideal flow meter for your application can be challenging, but it doesn’t have to be. Our expert engineers are here for you with free consultations to point you in the right direction. Call now and let us help.

Learn more about why you should partner with KOBOLD for your application.

Featured Products
Oval Gear Positive Displacement Flow Meter
DON - Positive-Displacement Flow Meters

For Viscous Liquids | Up to 660 GPM | Up to 300° F | Up to 1,450 PSI | NPT or ANSI Connections | Batching and Totalizing | Bi-directional Capabilities | Top Seller

Clamp-on Ultrasonic Flow Meter
DUC - Quick-Mount Clamp-on Ultrasonic Flow Meter for Liquids

For Liquids | Easy External Installation | Removable | Transit Time Technology | Up to 98 ft/sec | Up to 20 Foot Lines | Up to 300 °F

All Plastic Flow Meter and Switch
KSM - All-Plastic Flow Meter and Switch for Liquids or Gases

Made in the USA | For Liquids | Direct Reading Scales for Water or Air | Large, Easy to Read Scale | Shock and Corrosion Resistant | Up to 260 GPM or 400 SCFM | Up to 145 PSI

All-Metal Magnetic Flow Meter
MIM - Small Inline Stainless Steel Magnetic Flow Meter for Liquids

Innovative| Economical | Fully-featured | Compact | Flow & Temperature Measurement | IO-Link | High Turndown Ratio | Bidirectional | Switch, Transmit, Batch | 2 Configurable Outputs

Orifice Type Differential Pressure Flow Meter
RCM - Differential Pressure Orifice Flow Meter - High Flow Rates

Digital or Mechanical Displays | Liquid, Gas, or Steam | High Rangeability | Up to 3,000 GPM or 20,000 CFM | Up to 400 PSI | Up to 350 °F | Optional Alarms and Output Signals


KOBOLD USA is a subsidiary of KOBOLD Messring GmbH, a world-leading instrumentation engineering business founded in Germany in 1980 by Klaus J. Kobold. With patented technology and superior service, the company quickly established itself as one of the global leaders in sensor and control systems with high quality products. The KOBOLD brand name became synonymous with superior quality and technological advancement in instrumentation engineering.

Have a Question?

We are instrumentation experts and would be happy to help you in any way we can with your technical questions. Our engineers offer decades of experience and expertise.

Other Members of the KOBOLD group
Heinrichs Henschen Mesura Unirota