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Types of Flowmeters |
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| Rotameter |
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ROTAMETERsT
(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. Rota Yokogawa is one
of the main suppliers of ROTAMETERsT in Europe.
Globally ROTAMETERT is available with metering
tubes manufactured from either glass, plastic
or metal. Our ROTAMETERT family includes units
6mm to 125mm line sizes, temperatures from -180
to +400ºC, flange ratings to 1500#, ±1.6%
accuracy class and turndown's of 10:1. ROTAMETERsT
offer a very low cost, easy to install solution
to flow measurement. Once considered as only a
water or air flowmeter, ROTAMETERT is now world
proven in applications such as industrial gases,
viscous/non conductive chemicals, steam and fuels.
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| Featured
Suppliers |
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Brooks® variable area flowmeters
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.
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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.
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Aalborg
Instruments & Controls, Inc.
Stainless Industrial Flowmeter
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).
Click Here for More» |
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Cole-Parmer
offer an extensive range of variable area flow
meters for both liquid and gas applications. Cole-Parmer’s
variable area flow meters are simple to install
and offer cost effective solutions for applications
requiring visual indication of flow or flow rate.
Cole-Parmer offers variable area flow meters for
measuring liquids flow from 0.0002 ml/min to over
400 LPM and for gases from 0.02 ml/min to over
700 m3/hour.
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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.
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King
flowmeters provide exceptional performance
in a wide range of industrial, commercial and
specialty applications. With 7 new, low cost,
full feature product Series for 2003, King offers
more styles, sizes, features and options to satisfy
all your rotameter requirements.
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| Featured
Products |
| Brooks Armored Rotameters
(Variable Area) |
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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.
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| Flow Network VKP - Plastic Flowmeter & Switch |
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Special Features:
- LOW COST SOLUTION
- ±8% Full Scale Accuracy
- ±1% Full Scale Repeatability
- NPT Fittings
- Polysulfone Construction
- Compact Size
- Direct Reading Scale for Oil and Water
- Optional Adjustable Setpoint
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| Aalborg model F single
flow tube all PTFE/PCTFE in line rotameter |
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- 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.
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| Cole-parmer : 303 SS
Flowmeters for Water |
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303 SS Flowmeters for Water withstand
pressures to 6000 psi. Wetted parts include 303 SS, and
a PTFE-coated alnico magnet.
Specifications
| Media |
water |
| Flow rate (water) ; |
0.05 to 0.5GPM; 0.2 to 1.8 LPM |
| Accuracy |
±2% full-scale |
| Repeatability |
±1.0% |
| Material (Housing) |
304 Stainless Steel |
| Max operating temperature |
240°F (115°C) |
| Max pressure |
6000 psi |
| Connections |
1/4" NPT(F) |
| Dimensions |
1-3/4 W x 4-13/16 H x 1-15/16 D |
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| Vögtlin Instruments
: Rotameter |
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The Q-Flow is a new, modern
flowmeter 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
- 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
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| King Rotameters |
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King Introduces a NEW
chemical resistant, borosilicate glass tube meter series
for liquid service. It features a clear polycarbonate
sheild surrounding the glass metering tube.It is assembled
in a 304 SS tie rod frame. It offers CPVC and Hastelloy
C-276 as optional materials of construction. It is suitable
for a wide range of chemical and corrosive applications.
O-ring seals allow for easy disassembly and cleaning.
- Capacities.50 to 26 GPM - Water
- Scale80 mm (3") , 127 mm (5") Direct reading
- Accuracy± 5% of Full Scale Flow
- Turndown10:1 to 12.5:1 unless otherwise indicated
- Repeatability1/2 %
- Max Temperature140 F (60° C)
- Max Pressure100 psig
- Ambient Temperature33° F to 125° F (1°
C to 52° C)
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Flowmeters Related products |
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References |
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