https://www.brooksinstrument.com/en/products/variable-area-flow-meters

As one of the pioneering manufacturers in variable area (VA) flow meter ( rotameter) technology, Brooks Instrument has created a diverse and proven portfolio of ...

http://www.dwyer-inst.com/Product/Flow/Flowmeters/

Flow meters measure water, oil, gas or air flow rates. Applications include calculating required fill or drain times for tanks, water towers, backflow prvention, heat ...

https://www.yokogawa.com/us/solutions/products-platforms/field-instruments/flow-meters/variable-area-flow-meter-rotameters/

The Variable Area Flowmeter is one of the oldest and mature principles in flow measurement with its simple design: a float rises inside a conically shaped glass  ...

https://en.wikipedia.org/wiki/Rotameter

TecFluid-CG34-2500 for water flow measurement. Medical oxygen regulator with rotameter. A rotameter is a device that measures the volumetric flow rate of fluid in a closed tube.

https://www.omega.com/en-us/resources/rotameters

Aug 28, 2018 ... he rotameter is an industrial flowmeter used to measure the flowrate of liquids and gases. The rotameter consists of a tube and float.

https://www.dakotainstruments.com/rotameters/acrylic-flow-meters/water-rotameters

Available for multiple flow rates, this Acrylic Flow Meter has a Dual Direct Reading Scale with yellow backing for easy viewing of Water flow values. Viton Seals ...

https://www.dakotainstruments.com/rotameters

Rotameters, also known as variable area flow meters, are ideal for measuring the ... Flow Meter, 2" FNPT Connections, Polycarbonate Shield - Water (GPM/LPM).

https://www.sensorsmag.com/components/basics-rotameters

Oct 1, 2002 ... Rotameters are the most widely used type of variable-area (VA) flowmeter. In these devices, the falling and rising action of a float in a tapered ...

https://www.flowmeterdirectory.com/flowmeter_rotameter.html

Our proven Q-Flow is a modern VA-flowmeter (Rotameter) for gases built on the variable area principle. Designed in close collaboration with users, it combines ...

https://www.instrumart.com/categories/4148/rotameters-variable-area-flow-meters

Variable area flow meter for water and other fluids at temperatures of -20 to 240° F, stainless steel or brass, 1/4 to 3in sizes available. Starting at. $245.00.