Selection and installation of Verabar flow meter

Abstract: The selection and installation information of Verabar flowmeters are provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Selection and installation of Verabar flowmeter 1. The mechanical size of Verabar flowmeter is tailored according to the size of the installed pipeline, and its measurement range is calculated and calibrated according to the flow data provided by the process. When selecting a model, be sure to provide the correct one to the manufacturer. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the selection and installation of Verabar flowmeters. Selection and installation of Verabar flowmeter 1. The mechanical size of Verabar flowmeter is tailored according to the size of the installed pipeline, and its measurement range is calculated and calibrated according to the flow data provided by the process. When selecting, be sure to provide the manufacturer with the correct flow data and pipe dimensions, including the outside diameter and wall thickness. The flowmeter must be installed in accordance with the standard to ensure that the measurement error of the entire measurement system is within the allowable range. 2. The pipeline in front of the detection rod sensor must ensure that there is a straight pipeline length of 7D ~ 9D (the data provided by various manufacturers are different, from 3D to 30D), so that the liquid and gas (vapor) in the large pipeline can be The flow velocity is distributed as symmetrically as possible on the axis. Only in this way, the flow rate through the entire section can be estimated by measuring the flow velocity at several points. Otherwise, the flow velocity distribution of the liquid and gas (steam) in the large pipeline will be very complicated, and the fluctuation of the flow coefficient K will be very large, and the measurement cannot be guaranteed. accuracy. However, it is impossible to guarantee a long straight pipeline in the actual process design. The author believes that if a certain form of Verabar flowmeter is determined, it is possible to discuss with the supplier to shorten the straight pipeline as much as possible on the premise of ensuring the repeatability of the system. According to the relevant data, as long as the ratio of the diameter of the measuring tube to the diameter of the process tube is less than 1 /10, the straight pipe length of the front pipe can be reduced to 3D ~ 4D. 3. The total pressure hole of the detection rod sensor must be opposite to the flow direction, and the deviation should not be greater than 7°. The detection rod should be inserted to the end along the diameter of the pipe. For vertical pipes, the detection rod can be installed on the horizontal plane of the pipe and along the circumference of the pipe 360°in any position. The high and low pressure pipes should be on the same plane; for horizontal pipes, they should be installed obliquely downward during measurement. Whether the flowmeter can be accurately measured and the length of its service life is directly related to whether it is installed correctly. Once the flowmeter is installed, the systematic errors affecting the accuracy of the flowmeter will always be accompanied, and it is difficult to eliminate it from the software. The correct installation method can refer to the installation specification of the differential pressure flowmeter, which will not be repeated here. 4. The detection rod is fixed on the pipeline through the joint. After the joint is tightened, the detection rod shall not loosen or leak. Pipeline vibration and fluid impact will make the fixed head of the detection rod loose and fall off, causing the detection rod to break and damage, affecting accurate measurement and causing economic losses. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Selection and Installation of Verabar Flow Meters'

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