• Toshniwal Brothers (Hyd) Private Limited

Oval Wheel Meters, Flow Transmitters

Toshniwal Brothers (Hyd) Pvt Ltd offers Oval Wheel Meters, Type OV Flow Transmitters. Features: direct measurement of volume respective of volumetric flowrate; measurement at high viscosities; high accuracy; only 2 moving parts (oval wheels); and 2-wire-technique. Each revolution of the oval wheels displaces a precisely known volume of liquid through the meter, from inlet to outlet. The number of revolutions therefore is directly proportional to the measured volume. The pulses generated by a pulse transmitter with high pulse resolution are processed in the electronic converter/digital indicator (litres, cubicmetres, gallons, etc), between ± 0.1 and ± 0.3% of actual flow depending upon meter type range and type of liquid. In general oval wheel meters give better accuracy and rangeablity for liquids with higher viscosity. Flow ranges for Toshniwal single case oval wheel meters - expressed as a function of the viscosity of the liquid for normal applications. For cold/hot water or sulphuric acid, reduced measuring ranges are to be applied. These viscosities and flow ranges are given as a guideline only. Highlights: flow ranges for intermediate viscosities are to be interpolated; for example, meter OV 400 can be used at continuous flow rate of 450 lpm at an operating viscosity of 2000 mPas; double casing design available in 3", 4" and 6" sizes; viscosities above 350 cP available on request; and operating temperature 110°C, normal (60°C for some materials) for temperatures up to 180°C (only Ag 43), heat extersion (300 mm) and special tolerance are provided.