Flow Meters banner

Ultrasonic Flow Meters

A reliable source for Flow Meter information and leading Flow Meter Companies & Manufacturers.

Ultrasonic flow meters are available in both single and dual-sensor versions though models using two sensors are more common and may be more accurate. Ultrasonic flow meters are ideal for wastewater applications or any dirty liquids that are conductive or water-based. Read More…

Ultrasonic Flow Meters Ultrasonic flow meters are flow meters that use sound to determine flow rate. An ultrasonic flow meter is a volumetric flow meter that requires particulates or bubbles in the flow.
Request for Quote

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.

Request A Quote

HydraCheck $$$

Orangeburg, NY  |  800-866-3837

Aalborg Instruments & Controls is a globally recognized manufacturer of precision instrumentation for flow measurement and control. We offer variable area flow meters, thermal mass flow controllers, and more. Since our founding in 1972, it has been our commitment to develop, produce and deliver the highest quality products and services, as well as consistently meet or exceed customer requirements. We are ISO 9001:2015 certified.

Request A Quote

Aalborg Instruments & Controls, Inc. $$$

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.

Request A Quote

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.

Request A Quote

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!

Request A Quote

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!

Request A Quote

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.

Request A Quote

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

Ultrasonic flow meters are ideal in situations where low-pressure drop, chemical compatibility, and low maintenance are required. However, ultrasonic flow meters will generally not work with distilled water or drinking water because they are too clean and pure in which case water flow meters are the best option. These flow meters are made out of metal such as steel when used inline.

Transi-Flo I Ultrasonic AC Powered Flow Meter Ultrasonic Flow Meters - Hoffer Flow Controls, Inc.

Important considerations to keep in mind while choosing an ultrasonic flow meter include the size of the pipe, the minimum/maximum flow rate required, and the minimum/maximum process temperature and pressure needed. Also, determining whether a handheld or continuous process monitor is necessary is also important. Many meters of this kind do not need to be part of the pipe system but can be installed outside of the piping. Ultrasonic flow meters are widely used by many industries that work with free flowing liquids.

The basic principle of operation employs the Doppler Effect which is the term used to refer to a shift in frequencies when an ultrasonic signal is reflected by discontinuities in the form of suspended particles or bubbles in motion. Ultrasonic sound is transmitted through a transducer into a pipe with flowing liquids. The solid particles or air bubbles reflect the ultrasonic wave with a slightly different frequency that is directly proportional to the rate of flow of the liquid. A second transducer picks up the reflecting waves and reports the difference. This process allows the meter to get an accurate measure of the liquid's flow rate.

Clamp-on type flow meters are another option. They measure the flow through the pipe without requiring any parts to be exposed to the stream, ensuring that corrosion and other effects from the fluid will not damage the sensors. Plastic or metal-housed transducers are placed on opposite sides of a pipe and are connected to a handheld electronic device that can provide a reading as well as trend patterns and other details.

Many designs besides clamp-on types are portable, a feature particularly useful for acting as a backup for a preexisting flow meter or for double-checking existing meters in a number of locations.

Ultrasonic flow meters may be specially adapted to measure the flow rate of gasses while others are meant for use in open channels. Flow switches may be added if a report or alarm is desired.

Ultrasonic Flow Meter Informational Video