ROTAMETER
(Variable Area Meters) are named after ROTA, one
of the European inventors of this flow principle
in the beginning of the century. ROTA invented
the rotating float, which is self-guiding and
has less friction in the pipe so that a more precise
measurement is possible. ROTAMETER
offer a very low cost, easy to install solution
to flow measurement. Once considered as only a
water or air flowmeter, ROTAMETER is now world
proven in applications such as industrial gases,
viscous/non conductive chemicals, steam and fuels.
Featured
Rotameter Suppliers
Instrumart is a leading supplier of industrial instruments located just outside Burlington, Vermont. Instrumart is the operating name for Total Temperature Instrumentation, Inc. ("TTI"). Instrumart is a global company with local roots. We are a member of the Lake Champlain Regional Chamber of Commerce and Vermont Businesses for Social Responsibility. We were recently named to Inc. Magazine's Inc. 5000 list of the fastest-growing private companies in the United States for the second year in a row. Vermont Business Magazine has named Instrumart one of the Best Places to Work in Vermont and one of Vermont's Top 5 Wholesale Businesses. More
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Brooks® Rotameter Brooks offers a wide range of glass and metal tube variable area flow meters with a choice of application-specific materials and connections, and accuracy of +/- 2% of full scale (standard) or 1% (optional). The Brooks GT1000 (pictured) includes a precision-bore ribbed borosilicate glass metering tube which is removable for cleaning and maintenance. The MT3809 is a rugged metal tube meter perfect for high temperature and pressure applications with optional 4-20 mA and HART programmable transmitter and pulse output for totalization. Many other models. More
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Flow Network Plastic VKP flowmeters and switches are used wherever inexpensive flow measurement of liquids (eg. domestic services, cooling water, lubrication systems, solar heating, etc.) is to be performed. The VKP series offers a compact design with wetted parts of Polysulfone, PVDF and Stainless Steel. Its low cost and features make the VKP series an ideal choice for OEM applications. Flow is read at the upper edge of the float. More»
Aalborg
Instruments & Controls, Inc.
Stainless Industrial Rotameter
Our model M meters are constructed of stainless
steel. Ideal for industrial applications with
flow rates up to 116 GPM (water) and 250 SCFM
(air).
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Vögtlin Instruments AG offers high-quality
devices and solutions for your flow measurement
and control tasks: Reliable & precise mass
flow meters & controllers for gases (Accuracy
+/- 0,3% of full scale and +/- 0,5% of reading,
turndown ratio 1 : 100) – Modular &
customizable variable area flowmeters for liquids
and gases – High precision needle valves
for fine dosages. Profit from our many years of
experience as developers, manufacturers and service
partners. More»
Featured
Rotameter Products
Instrumart's Rotameter
The AW-Lake Company ClearView rotameter provide an economical way to monitor municipal pressure water flows, observe case drain flows and verify pump outputs. More Info>>
The Hedland SE Series polysulfone rotameter are rugged yet low cost. These industrial quality variable area flow meters can be used to automatically trigger an alarm/control circuit if the flow exceeds or drops below preset limits. More Info>>
The stainless steel King Instrument 7430 series rotameter utilizes a float and tapered tube design. As a result, the King Instrument 7430 series rotameter has longer and more linear scales, better pointer stability, and 40% greater accuracy than competitively priced products. More Info>>
The Hedland TB Series flow transmitter/ flow switch combines the rugged, proven technology of a direct reading, piston-type, variable area flow meter with a linear potentiometer. More Info>>
Brooks Armored Rotameters
(Variable Area)
Brooks Instrument Metal
Tube Rotameters are ideal for high pressure and demanding
flow applications where safety is a concern. Intrinsically
safe or explosion-proof housings available for most
models.
Flanged and threaded connection to match your existing
system connections
Integral needle valves for process control
Many corrosion resistant materials available for
metering caustic fluids
HART and 4-20 mA outputs allow for remote monitoring
in hazardous environments. More>>
Aalborg model F single
flow tube all PTFE/PCTFE in line rotameter
chemically inert wetted components
removable protective shield
individually leak tested
vertical in-line
flow ranges from 125 mLPM to 45 LPM water
Made entirely of PTFE, PFA, and PCTFE, the model F
flow meter is excellent for high-purity applications
or use with corrosive liquids.
Units are available with a standard valve to monitor
and control flow or without a valve to just monitor
flow.
Flow meters are individually tested on a Mass Spectrometer
Leak Detector and certified to a leak integrity rating
of 1 X 10-7 sccs Helium or better. More>>
Vögtlin Instruments
: Rotameter
The Q-Flow is a new, modern rotameter for gases and liquids built on the variable
area, tube-and-float principle. Designed in close collaboration
with users, it combines our long experience with practical
shop-floor requirements
Compact and slender Design Rotameter
Measuring module: plugged in from the front
mm scale, product scale, user-defined scale
Float: spherical shape affords stability
Seals: FKM as standard, EPDM or PTFE/Chemraz
Valve: close-control, 15-turn microvalve
Valve practically hysteresis-free
Customized versions
Rotameter – Oxygen Service
Rotameters , where they are used on air or gas applications are identified by the glass tube which has a gravity float .
When flow increases the float moves up. The great advantage of the rotameter is that rotameters do not need to be externally powered but can operate and indicate gas flow, air flow or steam flow measurement using the force of the fluid it is measuring .
Rotameter - Compressed Air
Because of the simplicity of rotameter designs, they can be manufactured out of low cost materials and mass produced.
They can also be combined with flow regulators so that operators can see the impact on flow when turning a flow control valve for air or gas control.
Unlike a horizontally installed flowmeter , the rotameter must be vertically installed with the fluid going from down to up.
Rotameters – Instrument Air
Several rotameters may be used where a different gas needs to be measured or rotameters with multiple scales installed if the liquid or gas types being measured have varying viscosity or density.
Rotameter – Panel Mounted
Some options for rotameters have magnetic floats or some other means whereby they graduation or scale on the tube does not need to be visually noted and in these cases the rotameter can be used for example as a water flow switch , air flow switch or gas flow switch.
