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Air Flow Meters

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Air Flow Meters

Air flow meters are devices used to measure various aspects of the flow of air. Air flow meters may measure the volume of the air, the speed of the air or the mass of the air, depending on the type. Air flow meters are most frequently used to infer mass flow after taking various flow measurements such as absolute pressure, differential pressure, viscosity and temperature as air flows through a tube. Read More…Request for Quote

Air Flow Meters Air flow meters are devices used to measure various aspects of the flow of air. Air flow meters may measure the volume of the air, the speed of the air or the mass of the air, depending on the type.
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Leading Manufacturers

West Valley City, UT  |  800-316-5342

Established in 1990, HydraCheck is the market leader in developing, manufacturing, and selling engineered flow meters. Well known for their modular design, high performance and superior quality, HydraCheck boasts a full line of flow meters and transmitters as well as accessories such as displays, counters and indicators to ensure every customer receives the most suitable flow meter for any application.

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HydraCheck $$$

Concord, CA  |  925-687-8363

At RCM Industries, our flow meters are designed to improve productivity, reduce cost, and protect the most sensitive equipment and processes. All flow meters are suitable for measuring water, oil, and most low viscosity liquids, and are available in Monel, stainless steel, and bronze alloys. Since our founding in 1972, we have served industries ranging from pharmaceutical to chemical to food and beverage. No matter what your application, we aim to exceed your expectations.

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RCM Industries, Inc. $$$

Monterey, CA  |  831-373-0200

Sierra manufacturers high performance mass flow meters and controllers for nearly any gas, liquid or steam. Customers choose Sierra when they need an accurate and repeatable flow measurement, short delivery lead times, expert flow advice and long term support. When it matters, choose Sierra. Visit www.sierrainstruments.com.

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Sierra Instruments $$$

Huntington Beach, CA  |  714-893-8529

Blue-White Industries specializes in providing high-quality flowmeters, water flow meters, air flowmeters and ultrasonic flow meters. Our extensive line of flowmeters is sure to meet any requirement you may have. We are committed to ensuring that our customers succeed with our products. For more information, please call or visit our website today!

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Blue-White Industries, Ltd. $$$

Evanston, IL  |  800-553-0550

Our flow meters are made from the highest quality materials. We work hard to ensure we use the best materials because we know how important flow regulation is for safety and the effectiveness of your business processes. We work hard to exceed all regulations and requirements for flow meter design, so you never have to worry about the compliance of your supplies. Contact us for more info!

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ERDCO Engineering Corporation $$$

Sturtevant, WI  |  262-886-2695

SIKA is a developer and manufacturer of flow control products and a wide variety of other measuring and monitoring systems. Our inventory includes flow sensors, flow meters, flow switches, and many more. We know that flow solutions aren't one-size-fits-all, which is why we provide consultation and flow management solutions that are individualized and customized to your requirements. When you choose SIKA, you will receive efficient, durable products and customer service tailored to your needs.

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SIKA USA $$$
placeholder image HydraCheck RCM Industries, Inc. Sierra Instruments Blue-White Industries, Ltd. ERDCO Engineering Corporation SIKA USA

Besides air, these flow meters can also measure many different types of gases including nitrogen, oxygen, argon, helium, hydrogen, natural gas and carbon dioxide.

Air flowmeters have many plastic or metal parts that work together to produce a reading. The parts are manufactured to very close tolerances in order to provide readings with an accuracy as low as 2%. Air flow meters come in several types. Besides variations such as size or material, they may vary in pressure range, switching technology, and the presence and type of transmitters. These variations allow air flow meters to have applications in several industries. In the medical industry, flow meters are used to measure patients' air intake, allowing physicians to further determine the severity of any illness. These types of flow meters are called peak flow meters and are particularly beneficial for asthma patients.

Air flow meters are also common in the automotive, petroleum and gas, utility services, HVAC, food processing and raw materials industries.

There are four main categories of air flow meters that are identified based on how they obtain a reading of the flow rate or quantity of air. Differential pressure air flow meters are the most common type. These devices take both a primary and a secondary measurement and report the difference.

The first measurement causes a change in kinetic energy by directing the air through a hole or orifice in the flow meter which is measured by the second element. Positive displacement meters separate the air flow into specific volumes which are then counted.

Vanes, gears, pistons, or diaphragms are commonly used to divide the air which is counted mechanically or electronically. Velocity air flow meters use a depth measurement and the average air velocity of the flow to produce a reading. They have a greater range than differential pressure devices.

Air Flow Meters Air Flow Meters - Sierra Instruments

The last category is true mass air flow meters. They directly measure the mass of the fluid, not the volume; two common kinds are thermal meters and Coriolis flow meters.

Air flow meters vary in how they obtain and report a reading but the list of parts may include pressure ports, bellows, spindles, pinions, gear mechanisms, gauges, cell caps, magnets, sensors, pistons, nuts, seals, levers and more.

Air Flow Meter Informational Video