Rotameters are general purpose, direct reading, relatively simple instruments, where a reliable sensitive repeatable indication of instant flow rate can be obtained required for process control, Or other purposes. The construction of this type of Rotameter is like consisting of essentially a vertical mounted tapered, calibrated glass tube with a float inside it. Shreeji manufacturer of Process Control Instruments offers various type of Rotameter includes "GLASS TUBE TYPE ROTAMETERS " used for flow rate measurement in process control applications. These rotameters made for flow rate measurement of liquid or gas inside a pipeline or tubing comes with certain degree of accuracy. It mainly finds application in modern chemical and allied industries, pilot plants & laboratories.