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Glass Tube Rotameters Manufacturers Glass Tube Rotameters Manufacturers Glass Tube Rotameter is a Variable Area Flow Meter. A rotameter comprises of a decreased cylinder, commonly made of glass, with a ‘drift’ made of SS or PTFE. The differential weight over the annulus territory is steady. The buoy travels through the decreased cylinder here and there regarding liquid stream. The vertical situation of the buoy as shown by scale is the proportion of the quick stream rate. Features Circlip & side plate construction Adjustable low & high flow switch Externally adjustable packing glands Connections can be rotated 360 degree at 90 degree FRP coated body for corrosive plant TC Joint connection HSN Code : 90261010 Glass Tube Rotameters Manufacturers “FLOWTECH” Glass Tube Variable Area Flow Meters (Rotameters) are intended for general in line and By-Pass metering applications (i.e. for Gas & Liquid) where operating conditions are with the limitations of Glass metering tubes. These are the principle of Variable Area. The float moves freely up and down tapered borosilicate glass with fluid flow from bottom to top. The float takes up a position where buoyancy forces and 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 instantaneous flow rate.