Requirements for the steam flow meter for the straight pipe section before and after the pipeline

Abstract: The information on the requirements of the steam flow meter for the straight pipe sections before and after the pipeline is provided by the excellent flow meter and flow meter manufacturers and quotation manufacturers. (1) Installation requirements of the instrument pipeline: The vortex flow meter has certain requirements for the upstream and downstream straight pipe sections of the installation point, otherwise it will affect the flow field of the medium in the pipeline and affect the measurement accuracy of the instrument. The length requirements of the upstream and downstream straight pipe sections of the instrument are shown in Figure (3). For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is the details of the requirements of the steam flowmeter for the straight pipe sections before and after the pipeline. (1) Installation requirements of the instrument pipeline: The vortex flow meter has certain requirements for the upstream and downstream straight pipe sections of the installation point, otherwise it will affect the flow field of the medium in the pipeline and affect the measurement accuracy of the instrument. The length requirements of the upstream and downstream straight pipe sections of the instrument are shown in Figure (3) DN is the nominal diameter of the instrument. Unit: mm Note: The regulating valve should not be installed upstream of the vortex flow instrument as much as possible, but should be installed 10D downstream of the vortex flow instrument. 1. The inner diameter of upstream and downstream piping should be the same. If there is a difference, the inner diameter Dp of the piping and the inner diameter Db of the vortex meter meter should satisfy the following relationship: 0.98Db≤Dp≤1.05Db The upstream and downstream piping should be concentric with the inner diameter of the flow meter, and the misalignment between them should be less than 0.05Db2. The gasket between the instrument and the flange should not protrude into the pipe during installation, and its inner diameter should be 1-2mm3 larger than the inner diameter of the meter. Installation design of pressure measuring holes and temperature measuring holes. When the pipeline under test needs to be installed with temperature and pressure transmitters, the pressure measuring hole should be set at 3-5D downstream, and the temperature measuring hole should be set at 6-8D downstream, see Figure (7). D is the nominal diameter of the meter, unit: mm The above is the entire content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Requirements for Steam Flow Meters for Straight Pipe Sections Before and After the Pipeline'

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