| Flowmetrics is a leading manufacturer of turbine, rotameters, positive displacement flowmeters and associated flow electronics suitable for liquids and gases. |
The variable area flowmeter or rotameter is a flow measuring device which
has been constructed to produce a differential pressure. The area of the flow
restriction is tapered to maintain constant differential pressure. They are
made with a vertical tapered tube through which the fluid or gas moves in an
upward motion. A metering float, usually 316SS, is free to move within the
tube. At no flow conditions the float rests at the bottom of the tapered tube. As
fluid flow increases, the sum of the buoyancy force and the fluid force on the
float eventually exceeds the weight of float and the float rises. By graduating
the tube the float can be used to indicate flow level.
This is one of the simplest and most reliable methods of measuring flow.
The benefits are:
measure flow of liquids, gases and vapors such as steam.
has been constructed to produce a differential pressure. The area of the flow
restriction is tapered to maintain constant differential pressure. They are
made with a vertical tapered tube through which the fluid or gas moves in an
upward motion. A metering float, usually 316SS, is free to move within the
tube. At no flow conditions the float rests at the bottom of the tapered tube. As
fluid flow increases, the sum of the buoyancy force and the fluid force on the
float eventually exceeds the weight of float and the float rises. By graduating
the tube the float can be used to indicate flow level.
This is one of the simplest and most reliable methods of measuring flow.
The benefits are:
- Economical: The least expensive method of measuring flow in pipes
size 3 inches and under. - Ease of installation: Easily installed in any vertical section of pipe - no
piping run requirements. - Simplifies maintenance: They include removable caps which provide
easy access for cleaning the metering tube.
measure flow of liquids, gases and vapors such as steam.
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