Go to Machine Design Home Go to GlobalSpec.com Home
Find:      Advanced Search >>
Newsletter FREE GlobalSpec e-Newsletters
Receive the latest news, trends, and technology relevant to your work.
(See Titles)


About Rotameters
Show all Rotameters manufacturers
Search for Rotameters by specification

Rotameters are also known as variable area flow meters.  They are typically tapered glass tubes positioned vertically in the fluid flow. A float within the tube rides upward in relation to the amount of flow. When there is no liquid flow, the float rests freely at the bottom of the tube.  As liquid enters the bottom of the tube, the float begins to rise. 


Products & Services Related to Rotameters
Flow Transmitters
Flow transmitters provide electrical outputs that are proportional to flow inputs. They use flow meters to measure the flow of liquids and gases.
Mass Flow Switches
Mass liquid flow switches and mass gas flow switches are devices used for measuring the flow or quantity of a moving liquid or gas in terms of a unit of mass per unit time, such as pounds per minute. These devices may be sensors with electrical output or may be stand-alone instruments with local displays and controls.
Paddlewheel Flow Meters
Paddlewheel flow meters have a paddle wheel that is perpendicular to the flow path. The rotor axis is positioned to limit contact between the paddles and the flowing media.
Positive Displacement Flow Meters
Positive displacement flow meters measure the volume or flow rate of a moving fluid or gas by dividing the media into fixed, metered volumes. These devices consist of a chamber that obstructs the media flow and a rotating or reciprocating mechanism that allows the passage of fixed-volume amounts.
Turbine Flow Meters
Turbine flow meters measure the rate of flow in a pipe or process line via a rotor that spins as the media passes through its blades.
Velocity Flow Switches
Gas flow switches and liquid flow switches, velocity, are used to measure the flow or quantity of a moving fluid in terms of velocity, such as feet per minute.
Vortex Flow Meters
Vortex flow meters are flow sensors that detect the frequency of vortices shed by a bluff body placed in a flow stream. The frequency of the vortices is proportional to the flow velocity.

Engineering Web: Rotameters - Machine Design
Pages: 1 - 2 of 2
Basics of Design Engineering - Fluid Power Chapter 2 - Filters, Heat Exchangers...
Rotameters are the most common variable-area meters, consisting of a tapered tube in which a float is supported by the fluid flowing up through the tube. As the fluid flow increases, the float is ...
Machine Design -
Rotameters are the most common variable-area meters, consisting of a tapered tube in which a float is supported by the fluid flowing up through the tube. As the fluid flow increases, the float is ...
See more product announcements for Rotameters
Model P Low Flow Rate Flow Meter

Model P Low Flow Rate Flow Meter
Aalborg Instruments


 Model V Medium Range Rotameter

Model V Medium Range Rotameter
Aalborg Instruments



Related Keywords
rotameter
rotometers
flow meter rotameter
rotameter flow meter
Rotameter Distributor
meter flow rotameter
teflon lined rotameter
high purity rotameter
rota meter flow



©1999-2008 GlobalSpec. All rights reserved.
Use of GlobalSpec is governed by these Terms of Use and Privacy Policy.

Penton Media, Inc. Site Use Agreement :: Privacy Policy
Home :: Article Archive :: CD Library :: CAD Library :: Site Map