BY PASS ROTAMETER is also called as INFERENCE type Rotameter. We, CVG manufacture and supply BY PASS ROTAMETER which are useful in chemical process industry and research industries. Our BY PASS ROTAMETER'S are accurate and durable, thus economical. In BY PASS ROTAMETER'S there are two lines , main line and bye pass line. There is an orfice plate in the main pipe line. Because of this differential pressure is created and a little amount of flow passes through the by pass line. By measuring flow from by pass line we can estimate flow through main line.