 |
Flow Meter Types |
|
|
|
|
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 |
|
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
Details>> |
|
 |
|
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).
Click Here for More» |
|
|
| Featured
Rotameter Products |
| 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.
|
| Flow Network VKP - Plastic Flowmeter & Switch |
|
|
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
|
| 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.
|
| 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. |
|
|
Flow Indication & Control |
|
|
|
|
