Wedge flowmeter is a new type of throttle differential pressure flow measurement instrument that can perform high-precision flow measurement at high viscosity and low Reynolds number (Reynolds number>500). In the case of low flow rate, small flow rate, and large pipe diameter, it has unparalleled advantages and irreplaceable role. Wedge flowmeter has flow coefficient, nonlinear error correction parameters, temperature, density, etc; Up to 0.5% measurement accuracy; The field can have a display and a standard current signal (4-20mA DC) output, which can be conveniently used for automatic control systems or computer networks, transportation, or other parameters for automatic regulation and control.
Wedge flow meters are mainly used for flow measurement of high viscosity (heavy oil, residual oil, diesel, engine oil, etc.), industrial gases, hydrogen, nitrogen, air, water vapor, sewage, etc.
The wedge-shaped flowmeter has a simple structure, no moving parts, and is prone to fluid wear. Its performance is stable and reliable, and its service life is long; Its specific components are equipped with a pressure measuring device, which is not trapped or blocked by liquid, and is formed by small pressure loss. It is an ideal low Reynolds number high-precision flow measurement. Wedge flowmeter is a new type of flowmeter that has been gradually used since the 1980s. The test piece is a V-shaped wedge with a smooth downward angle at the top, which is conducive to the smooth passage of liquids or viscous liquids. It contains suspended particles and will not cause hysteresis on the upstream side of the throttle. Therefore, it is particularly suitable for measuring volumetric and mass flow rates in the petroleum and chemical industries.
The main characteristics of wedge flow meters are:
1. Calibrate the wedge flowmeter, with an accuracy of up to 0.5 level, good repeatability, and high accuracy.
2. Has self-cleaning ability and no stagnant flow zone.
3. High reliability, wear resistance, and long service life.
4. Permanent pressure loss is smaller than orifice plate.
5. The integrated structure is installed on-site without the need for pressure pipes, and is directly connected to the threaded or flanged pipes. Convenient maintenance, time-saving and labor-saving construction.
