Common pressure taking methods of orifice flow meter

Abstract: Information on common pressure taking methods for orifice flowmeters is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Installation of Orifice Flowmeter: Pressure Sensing Orifice - Connect the upstream and downstream pressure orifices of the orifice plate and the differential pressure transmitter through a sensing tube (also known as a pulse tube). The most common pressure sensing port locations are: Take pressure from a flange (or orifice mount). This is the most common take. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details of common pressure-taking methods for orifice flowmeters. Installation of Orifice Flowmeter: Pressure Sensing Orifice - Connect the upstream and downstream pressure orifices of the orifice plate and the differential pressure transmitter through a sensing tube (also known as a pulse tube). The most common pressure sensing port locations are: taking pressure from a flange (or orifice mount). This is the most common way of taking pressure, but special attention should be paid when the pressure taking port is at the bottom of the pipe, because there may be a blockage at the bottom. 1 times the pipe diameter before the orifice plate, and 0.5 times the pipe diameter after the orifice plate. This method is relatively difficult, but more accurate, because the maximum value of the differential pressure is at the contraction section of the fluid, that is, at 0.5 times the diameter of the pipe. Corner Tap - This method is often used on smaller bore orifice plates. Because of space constraints, it is difficult to make pressure tap holes in flanges. The angle joint pressure method is generally used for occasions where the diameter of the pipeline is less than or equal to DN50. The signal generated by the differential pressure transmitter can be output to a flow indicator, or input to a flow computer together with the temperature and pressure signals, so that the density of the fluid can be compensated. Pipeline - The minimum straight pipe section downstream of the orifice plate is required to be 5 times the pipe diameter to reduce the change of flow velocity distribution caused by the pipe effect The above is the entire content of this article. 'Common Pressure-taking Methods of Orifice Flow Meters'

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