• J R U Conttrol Private Limited

High Flow Rotameters

J R U Control offers High Flow Rotameters, PHFR 421. It is also known as variable area flowmeters. It is widely used in chemical, fertilizer, petrochemical and other process industries, to measure flow rate of liquids and gases. Its operation is based on the variable area principle, where the fluid flow raises a float in a tapered tube, increasing the area for passage of the fluid. The greater the flow, the higher the float is raised. The height of the float is directly proportional to the flow rate. With liquids, the float is raised by a combination of the buoyancy of the liquid and the velocity head of the fluid. With gases, the buoyancy is negligible, and the float responds to the velocity head alone. The metering tube of these rotameters are specially designed, and made of tough thick walled tapered borosilicate glass in order to facilitate the float to move up or down in the tube proportional to the fluid flow rate and the annular area between the float and the tube wall. Rotameters must be vertically oriented as the float position is gravity dependent. Features: simple and proven design; ±2% full scale accuracy; rugged construction; shielded for use in pressurized systems; packing glands for industrial installations; and years of trouble free operation in several existing installations. Other models are PHFR 421S etc.