Wedge Flow Meter Evaluation Guide

Abstract: Wedge flow meter evaluation guidance information is provided to you by excellent flow meter and flow meter production and quotation manufacturers. In recent years, the wedge-shaped flowmeter has gradually been recognized by the majority of users, and gradually replaced the non-standard differential pressure flowmeters such as the round orifice plate. So what are the unique characteristics of the wedge-shaped flowmeter compared with other differential pressure flowmeters where? 1. Wedge flow. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the wedge flowmeter evaluation guide article. In recent years, the wedge-shaped flowmeter has gradually been recognized by the majority of users, and gradually replaced the non-standard differential pressure flowmeters such as the round orifice plate. So what are the unique characteristics of the wedge-shaped flowmeter compared with other differential pressure flowmeters where? 1. The wedge-shaped flowmeter has a wide range ratio, and the Reynolds number is applicable in the range of 300 to 106, so it is especially suitable for the measurement of high-viscosity fluids, such as various high-viscosity fluids and sewage in chemical plants; dirty gases, such as blast furnace gas, Coke oven gas measurement; also can measure steam, natural gas and other gases. 2. The wedge-shaped flowmeter improves the requirements for the sharpness of the entrance of the orifice plate according to its own unique design, and improves the measurement accuracy. 3. The pressure loss is smaller than that of the orifice plate. The wedge angle of the wedge flowmeter produced by the company is generally between 60 degrees and 90 degrees. The smaller the angle, the greater the static pressure difference and the corresponding increase in pressure loss. Because the throttling part of the wedge-shaped flowmeter is an inverted triangle, this shape has a diversion effect, and the fluid can be smoothly transitioned when it flows. Compared to orifice plates, wedge flowmeters produce less pressure loss. 4. With self-cleaning function. When the wedge-shaped flowmeter is applied in the field, when the fluid contains impurities or solids, it is easy to flow through the lower part of the wedge-shaped flowmeter and will not deposit around the orifice plate, that is, the wedge-shaped orifice plate has a self-cleaning effect. 5. Wedge flowmeter is used for low Reynolds number RD flow measurement. This characteristic is also a very critical point, and it is not achieved by many other flow meters; standard orifice plates, venturis, etc. are not suitable for measurement at low Reynolds numbers. The flow coefficient of the standard orifice plate usually tends to be stable when the thunder number is above 4000. When the Reynolds number is low, the flow coefficient will change with the change of the Reynolds number. When the Reynolds number is less than 1800, the flow and differential pressure will deviate from the basic square root relationship, which obviously has a great impact on the measurement accuracy. The wedge-shaped orifice plate is a V-shaped throttling element with good linearity of the flow coefficient, and has the characteristics of a smooth curve at the nozzle inlet and no stagnation area, and the Reynolds number has little influence on it. When the Reynolds number is as small as 500, the accuracy and flow coefficient of the wedge flowmeter do not change much; when the Reynolds number is between 400 and 10000 for flow measurement, the error is less than±3%. 6. The wedge flowmeter is easy to install and use. Compared with the orifice plate, the two ends of the wedge-shaped flowmeter can be connected with the process pipeline with flanges, which is convenient for installation, small in daily maintenance and relatively low in operation cost. The advantages of the wedge flowmeter mainly depend on its own design, but it also has its disadvantages. Generally, the caliber should not be too large (below 300). When it is applied in the field, it needs to be calibrated with real flow. The above is the whole content of this article. You are welcome to inquire our factory. Flowmeter selection, quotation, etc. Wedge Flow Meter Evaluation Guide

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