Variable Flow Meter
Variable area flow meters are simple and versatile devices that operate at a relatively constant pressure drop and measure the flow of liquids, gases, and steam.
The position of their float, piston or vane is changed as the increasing flow rate opens a larger flow area to pass the flowing fluid. The position of the float, piston or vane provides a direct visual indication of flow rate. Design variations include the rotameter (a float in a tapered tube), orifice/rotameter combination (bypass rotameter), open-channel variable gate, tapered plug, and vane or piston designs.
Feature
High accuracy
High Reliability
Application specific operation
Application
Areas where measuring fluid can be in contact with the transmitter, Areas where the pressure drop of the fluid is not a problem
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