Variable section flow meter with glass tube is used to measure the flow of gaseous and liquid media. Rotameters are in the form of a vertical conical tube made of borosilicate glass, in which special float.
Fluid rises up the conical tube of the flowmeter, pushing the float into position with sufficient free space. This free space depends on the fluid flow, weight float, density and viscosity of the liquid.
The pressure drop across the flowmeter remains constant over the entire flow region. This is because the pressure drop refers to fluid velocity and flow area, flow area increases as flow increases liquids. The flow meter has low pressure loss, installation does not require a straight tube before and after device. In addition, the flowmeter has adjustable magnetic or infrared limit switches for all kinds of scales.
6001/6002 Series Variable Glass Tube Flow Meter used in industry for flow measurement: