Delta Bar Flow Meter Installation Requirements

Abstract: Delta Bar flow meter installation requirements information is provided to you by excellent flow meter and flow meter production and quotation manufacturers. Delta Bar Flowmeter Installation Requirements 1. For the I-type sensor, the detection rod has been welded into a piece of pipeline, and the sensor must be installed in the direction of fluid flow. It is required that the inner diameter of the process piping is the same as the inner diameter of the sensor, or at least straight upstream. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the installation requirements of Deltaba flowmeters. Delta Bar flowmeter installation requirements 1. For the I-type sensor, the detection rod has been welded into a piece of pipeline, and the sensor must be installed in the direction of fluid flow. It is required that the inner diameter of the process pipeline is the same as the inner diameter of the sensor, or at least the angle between the axis of the sensor and the axis of the pipeline is as zero as possible within the required length of the upstream straight pipe section. For other types of sensors, the detection rod is inserted into the process pipeline. During installation, in addition to the total pressure hole facing the direction of flow velocity, it must be ensured that the sensor detection rod is perpendicular to the axis of the process pipeline. The allowable position angular pressure deviation is shown in Figure 5. The angle between the center of the total pressure hole of the sensor and the axis of the pipeline should be less than 7°The sensor detection rod is inserted into the bottom along the diameter of the pipe, and its angular deviation is less than 7°The vertical pipeline sensor can be installed at any position along the pipeline circumference 360 ​​on the horizontal plane of the pipeline, and the high and low pressure impulse pipes should be on the same plane, as shown in Figure 6(a); As shown in Figure 6(b); when measuring the vapor of the gas, it should be installed with an upward slope as shown in Figure 6(c). 2. Since the sensor is based on the velocity area method, the straight pipe section adopts the approximate integral theory and is described with more points. distribution equation, and is established under the conditions of a fully developed velocity distribution. Therefore, in order to obtain an ideal distribution, there must be a certain length of straight pipe section before and after the sensor (see the table below). No. The installation position of the velocity-averaging tube flow sensor is upstream side A, downstream side B, with rectifier, without rectifier, on the same plane, on different planes, 1 with one 90°Elbow or Tee 6D 7D 9D 3D 2 Two 90's in the same plane°Elbow 8D 9D 14D 3D 3 Two 90 in different planes°Elbow 9D 19D 24D 4D 4 Pipe diameter change (retraction or expansion) 8D 8D 8D 3D 5 Partially open gate, ball or other throttle valve 8D 8D 8D 3D Note: (1) in the table“D”is the inner diameter of the pipe. When the magnetic flap level gauge (2) is insufficient in the pipeline section, the upstream should account for 70% of the total length of the pipeline, and the downstream should account for 30%. At this time, a stable indication can still be given, but the accuracy is reduced. 4.1.3 The device for clamping the sensor shall ensure no leakage, looseness and displacement. 4.2 Maintenance 4.2.1 The sensor should be cleaned regularly when the process pipeline is overhauled. There are many cleaning methods, such as blowing off the accumulated contamination in the detection pipe with air source; cleaning with kerosene and soft wire brush to keep the pressure holes unobstructed. 4.2.2 See the following table for the possible causes of failures and how to clear them: 1. No differential pressure signal output 1. The high and low pressure valves are not opened 1. The high and low pressure valves are opened 2. The high and low pressure balance valves are not rotated Tighten 2. Tighten the balance valve 2. The differential pressure signal output is too small. 1. There is leakage in the pressure guiding system. 3 The differential pressure signal output is too large 1. Improper selection of the secondary meter range 1. Increase the upper limit of the differential pressure transmitter 2. The back pressure hole is blocked 2. Clean the equalizing tube and remove the blockage The above is the whole content of this article, welcome Inquire about the flowmeter selection, quotation and other content of our factory. 'Delta Bar Flow Meter Installation Requirements'

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