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…
Sierra InstrumentsMonterey, 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.$$$
SIKA USASturtevant, WI | 262-886-2695
SIKA is a developer and manufacturer of flow control products and a wide variety of other measuring and monitoring systems. Our inventory includes flow sensors, flow meters, flow switches, and many more. We know that flow solutions aren't one-size-fits-all, which is why we provide consultation and flow management solutions that are individualized and customized to your requirements. When you choose SIKA, you will receive efficient, durable products and customer service tailored to your needs.$$$
Tek-Trol LLCCrystal Lake, IL | 847-857-6076
Tek-Trol LLC is one of the industry's longest-running and most experienced flow meter manufacturers. Our passionate, highly skilled workers and our advanced technology allow us to make the best metal fabrications in the industry. Our commitment to quality, innovation, and customer satisfaction make us a preferred choice for companies looking for flow meters. We are focused on continually improving our products and our service, so you are only ever getting the best from us.$$$
Burkert USA CorporationHuntersville, NC | 800-325-1405
The flow meters that we are able to provide will withstand the tests of time in order to provide a long lasting value! We have locations in thirty five countries worldwide and we are dedicated to being wherever you need us to be! We have the knowledge and the capability to work with you closely in order to come up with the perfect product to suit your needs! Visit our website today to learn more about what we may do for you!$$$
MAG Flow MetersSalinas, CA | 831-884-3109
MAG Flow Meters has been a premier supplier of flow meters for more than 25 years. With our hard work and dedication, we are able to provide high-quality products and competitive prices. Over the years, we have continued to grow and expand, raising industry standards in the process. Our commitment to quality and customer satisfaction makes us a premier flow-meter industry leader.$$$
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.
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.