Variable Area Flow Meters


Glass Tube Rotameter

Eureka Variable Area Flow Meters (Rotameters) work on the principle of Variable Area. The float moves freely up and down in the tapered borocilicate glass tube with fluid flow from bottom to top. The float takes up a position where buoyancy forcess the float weight are balanced in proportion to flow rate. The vertical position of the float as indicated by scale is the measure of the instantneous flowrate.

Materials of Construction

Tube : Borosilicate Glass
Float : SS316, PTFE, other on request
Packings : Neoprene, PTFE, Silicon, VITON
End Fitting : Mild steel, Carbon steel, SS304, SS316, CF-8M, CF8, Cast Iron PTFE lined, SS lined, PVC, and any other desired material subject to its availability.
Frame & Cover : Mild Steel, SS (optioonal)





Loflo Rotameter