VEKSLER BYPASS ROTAMETERS are available for line sizes 2″ and above. The complete assembly consists of an Orifice plate, Carrier Ring/Flanges of the main pipe line, by-pass piping with isolation valve and fittings, range orifice and the Rotameter. The Orifice calculations and design is bases on IS or BS standard. Bypass Rotameters are the most economical solution for flow measurement in large pipe lines and for large rate of flow but the use is limited to solid particles and slurries that tend to clog the range orifice and may result in malfunctioning.