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Rotameters

IQS Directory provides a comprehensive list of rotameter manufacturers and suppliers. Use our website to review and source top rotameter manufacturers with roll over ads and detailed product descriptions. Find rotameter companies that can design, engineer, and manufacture rotameters to your company's specifications. Then contact the rotameter companies through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Access customer reviews and keep up to date with product news articles. Whether you are looking for manufacturers of peak flow meters, venturi flow meters, flow indicators, or customized rotameters of every type, this is the resource for you.

  • 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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  • 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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  • 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.

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  • Concord, CA 925-687-8363

    We understand that fluid and gas measurement is crucial, which is why RCM Industries strives to remain at the forefront of flow control and flow measurement technology. With over 45 years of experience in our industry, we have succeeded in manufacturing reliable rotameters for a multitude of applications. We measure our success by the success of our clients, and we constantly aim to provide rotameters that are rugged, reliable, and easy to operate.

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  • Marlborough, MA 888-738-0188

    Spire Metering Technology offers one of the broadest, most affordable lines of flow measurement and energy metering products in the industry today. Through continuous innovation, we transform complex ultrasonic technology into affordable, reliable solutions for accurate flow and energy measurement.

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  • Trevose, PA 215-355-8400

    Thermal Instrument Company offers a wide range of thermal flow meters and flow switch products. Our products include mass flow meters, inline flow meters, insertion probes and signal processors. We serve the chemical processing, food, landfill and pharmaceutical industries.

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businessIndustry Information

Rotameters

Rotameters are an unusual type of flow meter. Note that flow meters are devices that measure the flow rate of a gas or liquid, this generally being the linear, nonlinear, volumetric or mass flow rate. Rotameters, on the other hand, determine flow rate using a rotating float inside a closed tube. A float is a shaped weight that is usually made from either a ceramic or anodized aluminum. Because it is partially comprised of a slightly narrowing, or tapered, tube, the rotameter falls into the category of flow meters called variable area flow meters. The first of their kind that included a rotating float was invented in 1908 in Aachen, Germany, by an inventor named Karl Kueppers. Rotameters themselves were first branded by a British company called GEC Elliot Automation, Rotameter Co. Rotameters are frequently utilized as cost-effective flow monitoring devices for both gases and liquids, most commonly as part of flow systems that have lower flow rates.

The work of a rotameter begins when the float is placed inside this tube. Flowing fluids enter from the bottom and pass through the tube regularly; according to the rate at which this fluid is flowing, the float moves up or down. The float, which must have a higher density than the fluid, is able to move vertically because of the forces of gravity and the drag forces of the fluid flow. The fluid inside the tube pushes it upward until the force of gravity on the float is equalized with the force of fluid on the float. Once said forces have reached equilibrium, the float can stop moving. Once stationary, it will sit at a specific vertical position that coincides with the the rate of fluid flow. To assist in the interpretation of the flow rate, manufacturers of rotameters place graduation marks along the side of the vertical tube. To visually determine flow rate, operators simply find and read the graduation mark that most closely aligns with the resting place of the float. Specifically, readings are usually taken from the top of the widest part of the float. Usually, floats are shaped either as ellipsoids or spheres, and they may be partially colored or diagonally grooved. While many meter operators choose to simply read flow rate results this way, some operators use rotameters that are equipped with monitoring systems to which the results can be transferred and read digitally. For optimal interior visibility, most rotameters are made from glass tubes, but they can also be made from metal. In addition, rotameters can be produced using a multiple tube design that makes it possible for them to measure multiple liquid streams at once.

Rotameters are very simple to install, use and read. Since they do not have to be paired with straight pipe runs, they can be installed virtually anywhere in a fluid flow system. They are highly accurate and, as they are available in a wide range of constructions and configurations, they are very flexible. Made from clear glass, they are inexpensive to make, but still maintain high resistances to chemical action and thermal shock. In addition, rotameters do not require any external fuel or power. Instead, they use only the properties of the fluid it is measuring and gravity to determine flow. This is an excellent feature for manufacturers looking to reduce their energy usage. Of course, it should be mentioned that, from time to time, a rotameter may require the assistance of a pressure transducer to electronically read the position of a float. This would generally only be in the case if the liquid inside a rotameter obscures the reading. For any simple flow metering application, interested parties can rely on single tube rotameters. Or, for more complex applications that involve more than one flowing stream, multiple tube rotameters give just as strong a performance. Exceptionally simple and exceptionally accurate, rotameters are one of the best volumetric flow meters on the market today. Anyone researching the purchase of a rotameter should make sure to investigate certain application factors and meter features. For example, potential customers should note what type of fluid they will be monitoring and pay attention to the fact that rotameters are best for use with non-corrosive materials. Potential customers should also determine the number of flowing streams for which they require monitoring and whether their application calls for a meter valve. After gathering the answers to all these questions, interested parties should take their specifications to a flow meter manufacturer, who will can determine and build the best rotameter for them.

More Rotameters

Rotameters
Rotameters
Rotameters – Sierra Instruments
Rotameters – Sierra Instruments






Rotameter Informational Video