Points for attention in the installation of orifice flow meter

Abstract: The information on the installation of the orifice flow meter is provided by the excellent manufacturers of flow meters and flow meters. Ten installation points of orifice flowmeter Orifice flowmeter is a commonly used flow measurement instrument, which is widely used in process control and measurement in petroleum, chemical, metallurgy, electric power, heating, water supply and other fields. Matters needing attention when installing orifice flowmeter. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details of some points to pay attention to in the installation of orifice flowmeters. Ten installation points of orifice flowmeter Orifice flowmeter is a commonly used flow measurement instrument, which is widely used in process control and measurement in petroleum, chemical, metallurgy, electric power, heating, water supply and other fields. There are many problems that need to be paid attention to when installing the orifice flowmeter. Today, I will introduce the main points of the orifice flowmeter installation in detail, hoping to help everyone. Installation points of the orifice flowmeter 1. Before the orifice is installed, check whether the number and size of the throttling device meet the requirements of the installation position of the pipeline. 2. For newly installed pipeline system, the orifice plate must be installed after pipeline flushing and line sweeping. 3. Pay attention to the installation direction of the orifice plate“+”The number should point towards the stream. 4. The center of the orifice plate should coincide with the center line of the pipeline, and the concentricity error should not exceed 0.015 (1/β-1) value. 5. When the orifice plate is installed in the pipeline, it should ensure that its end face is perpendicular to the axis of the pipeline, and the verticality error shall not exceed±1°. 6. In order to avoid the distortion of differential pressure signal transmission, the positive and negative pressure guiding pipes should be laid as close as possible, and anti-freezing measures should be taken in severe cold areas. Electric heat or steam heat preservation can be used, but it is necessary to prevent the superheated vaporization of the measured medium and the generation of gas in the pressure guiding pipe to cause false differential pressure. 7. The installation place of the orifice flowmeter must be tight, and no leakage is allowed. Therefore, the installation work must be carried out before the pipeline pressure test. 8. The pressure guiding pipe shall be laid vertically or inclined, and its inclination shall not be less than 1:12. For fluids with higher viscosity, the slope should also be increased. When the differential pressure signal transmission distance is greater than 3 meters, the pressure guiding pipe should be inclined in sections, and a gas collector and a settler should be installed at the highest and lowest points respectively. 9. The pressure guiding tube should be made of pressure-resistant and corrosion-resistant materials according to the properties of the medium to be measured. Its inner diameter should not be less than 6 mm, and its length should preferably be within 16 meters. 10. When the orifice plate is installed on the vertical main pipeline, the position of the pressure taking port can be arbitrarily selected on the plane of the pressure taking device. Orifice plates are installed in horizontal or inclined mains. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Points to Note in the Installation of Orifice Flow Meters'

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