Leading Rotameter/Variable Area Flow Meter Manufacturers

Rotameters get their name from the rotating float that is used to indicate the rate of flow.
The float moves both up and down depending on the rate of flow, this means that rotameters are commonly used to measure low flow rates as high flow rates tend to throw off the accuracy of the readings.
These types of flowmeters are great for applications that require an economical solution whether working with gases or liquids across a number of different applications. Read More…

Rotameter/Variable Area Flow Meter Rotameters get their name from the rotating float that is used to indicate the rate of flow.

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.

Sierra Instruments $$$

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...

Aalborg Instruments & Controls, Inc. $$$

Ryan Herco Flow Solutions is a leading national distributor for fluid handling products. Our family of products include; Flowmeters, sensors, instrumentation tubing and hose, process pipe and fittings, valves, pumps, filters and filter systems, storage and drums, and corrosion resistant structural products. We have 29 U.S. Service Centers ready to serve you.

Ryan Herco Flow Solutions $$$

Our flow meters are meticulously designed with you in mind. Our products have an unrivaled reputation, because we spend hundreds of engineering hours working on new and better ways to improve our products. No matter what you need, we can get if for you! Our staff is dedicated to helping you every step of the way. Contact us today for more info!

Furness Controls, Inc. $$$

We are ONICON Incorporated, a leading manufacturer of flow meters and energy measurement systems. Our products and solutions are used in a wide range of applications, including HVAC, building automation, and industrial processes.

ONICON Incorporated $$$
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As stated earlier, rotameters work best within applications where a low rate of flow is present, the reading is often done locally although the transmission of readings is an option in certain applications.

These flow meters are most commonly made from glass tubes that have markings along the sides in order to indicate the rate of flow visually. Metal rotameters are also available if that is something that your application requires.

As fluid enters the bottom of the rotameter, the float rises upwards within the tapered tube until gravitational force balances out. Typically, rotameters are read as a standard cubic feet per hour of air, this means that rotameres are not subject to constant restriction areas or variable pressure differentials because of the use of variable restriction and constant pressure differentials in order to measure the flow.

These flow meters can be used for a number of different applications as they can be designed to measure the flow rate of both single streams and also multiple streams of fluid or gases. The single flow meters are often mounted directly on the piping and are most commonly used in special conditions for measurements. Multiple tube rotameters are mounted onto a tripod base plate in order to level the system; they can also be mounted on a wall or even bench mounted.

Rotameters Rotameters - GPImeters.com

Rotameters are popular due to their versatility, simplicity, accuracy, and overall ease of use. It’s no question why rotameters are the go to choice for so many industries.

Peak Flow Meter Informational Video

 

Flow Meters Power Pages

Coriolis Flow Meters

Coriolis Flow Meters

A Coriolis flow meter measures mass by the inertia of a liquid or gas flowing through a vibrating tube that is equipped with a set of sensors at the inlets and outlets of the meter. The increased movement of the flow produces measurable oscillation that is proportional to the mass…

Flow Switches

Piston Type Flow Switch

A flow switch is a device that measures the flow rate and liquid pressure within a duct, loop, or system. Flow sensor and flow indication are other names for this switch. The primary purpose of a flow switch is to continually…

Level Switches

Level Switch

A level switch is an electrical or mechanical method for measuring the level of a liquid, powder, or granule material. It is designed to activate an alarm if the material level in a container passes a predetermined height or depth…

Magnetic Flow Meters

Magnetic Flow Meters

A magnetic flow meter is a volumetric flow meter that uses electrodes connected to the liquid flow to measure the velocity of fluids in a tube or pipe. The unique design of magnetic flow meters allows them to take their readings without the need for any moving parts…

Mass Flow Meters

Mass Flow Meters

A mass flow meter is a way of measuring the volume or mass of a gas or liquid passing through a system at a specific point in the flow system. They are used to measure linear, nonlinear, mass, and volumetric flow rates…

Ultrasonic Flow Meters

Ultrasonic Flow Meters

An ultrasonic flow meter measures the flow of a liquid or gas by sending ultrasonic waves across a pipe, containing the flow in the direction of the flow and in the opposite direction of the flow. The ultrasonic waves and the velocity of…

Types of Flow Meters

Types of Flow Meters

A flow meter is a flow rate measuring device used to determine the linear or nonlinear mass and volumetric flow of a liquid or a gas. The many names of flow meters include flow gauge, flow indicator, liquid meter, and flow rate sensor…

Metering Pumps

Diaphragm Metering Pump

A metering pump is a precision machine that moves or pumps a measured amount of fluid in a predetermined time to create volumetric flow. The term “metering pump” covers a wide range of pumping methods, each designed to meet…

Rotameters

Rotameters

A rotameter is a device that measures the flow of fluid volume per unit time in a closed tube. There are diverse rotameters applications, including chemical injection/dosing and tank blanketing. A rotameter can be said…

Water Filtering Systems

Water Filtering Systems

A water filtering system is a mechanism that is designed to remove solid particles, tiny or large, from inside a liquid through the use of a filter medium that only allows the liquid to pass but restricts solid particles….

Leak Detector

Leak Detector

A leak detector is a sensor used for monitoring a system that contains liquids, gasses, or other substances to ensure that the contained materials do not escape, leak, or otherwise leave the system. The leak detection process involves…

Centrifugal Pumps

Centrifugal Pumps

A centrifugal pump is defined as a hydraulic machine that changes mechanical energy into hydraulic energy by the use of centrifugal force acting on the fluid. This is a machine that uses rotation to enforce velocity on a liquid…

Flow Instrumentation

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