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. DESIGN FEATURES : Dowel Pin, side plate construction Detachable flow scales Externally adjustable packing glands Connections can be rotated 360 degree at 90 degree Laminated safety glass shielding Scale length of 180-200 mm PERFORMANCE : Accuracy : +/- 2% F.S.D. Temperature Ratings : Maximum Operating Temperature rating is 121 o C for Gas services and 93degree C for Liquid services. Repeatability :0.5% Connections : Flanged OR Screwed OR Triclover Joint or hose nipple Rangebility : 10:1 Enclosure : IP 55 OR IP 65 on request Scale length : 180-200 mm Pressure Ratings : Meter Size Max. Operating Pressure (Kg/Cm2g) 15 25 20 25 25 15 40 12 50 10 80 07 MATERIAL OF CONSTRUCTION : Tube : Borosilicate Glass Float : SS 316, PTFE, others on request Packings : Neoprene, PTFE, Silicon, Viton Frame MATERIAL OF CONSTRUCTION : Tube : Borosilicate Glass Float: SS 316, PTFE, others on request Packings : Neoprene, PTFE, Silicon, Viton Frame & Cover : M.S. OR SS End Fitting : M.S., C.S., SS304, SS316, CF-8M,