Oval Gear Flowmeter รุ่น OG900 ยี่ห้อ WELL

Overview

The Oval gear flow meter is a kind of Positive Displacement Flow meter. As the fluid being measured passes thru the meter, it rotates 2 oval gears in measuring cavity to displace a precise volume of fluid. A sensor detects the gear rotation to determine displaced volume and flow rate.

Fluid pressure rotates the oval gear, Figure 1. In position (a), the fluid exerts a clockwise driving force on gear A. There is no driving force on gear B. It is perpendicular to the flow so the fluid forces on gear B. At position (c), all the driving force is on the gear B. This alternative driving force provides a smooth rotation of almost constant torque.

The meter design minimizes the slippage between the gears and the measuring cavity wall. As a result, the oval meter is less affected than other designs by the liquid’s viscosity and lubricity.

Application

Oval gear flowmeter is mainly used for high value liquids such as oil, chemical etc. Main applications include unloading, transfer and consumption monitoring.

Oval Gear Flowmeter Features

. Only Two Moving Parts

• Higher Accuracy, 0.5% or 0.2%

• Standard Viscosity up to 2,000 cP (Centipoises mPa.s) • Size of wide flow ranges 0.04-340 m//h (18-37,396 GPM)

• Wide range of working environment -20 +180 °C