The Variable Area Flowmeter is an instrument for measuring the flow of liquids and gases in pipelines. It includes a vertical tube through which the fluid flows whose diameter increases from the bottom to the top and a float which can move vertically in the tube.As the flow increases this float moves to a higher position until its resistance to the fluid flow is balanced by the float’s buoyed weight in the fluid, a value which is constant and independent of the flowrate. The position of the float is a measure of the flowrate. The flowrate values can be read on a scale.
Here is a listing of applications where rotameters (variable area flow meters) are commonly used and links to where their PDF documents can be downloaded.
- Variable Area Flow Meters for Tank Purging Applications
- Variable Area Flow Meters for Gas Analyzers Applications
- Variable Area Flow Meters for Plant Potable Water Flow Monitoring
- Variable Area Flow Meters for Plant Gaseuous Fuel Monitoring
- Variable Area Flow Meters for Air Leakage Testing
- Variable Area Flow Meters for Alarms
- Variable Area Flow Meters for Bubble Tube Purge Level Measurement
- Variable Area Flow Meters for Continuous Forced Lubrication of Bearings
- Variable Area Flow Meters for Cooling Water to Protect Heat Generating Equipment
- Variable Area Flow Meters for Laboratory Measurements
- Variable Area Flow Meters for Hot Water Chill Water Flow Balancing in Large Buildings
