What are the conditions that the orifice flow meter needs to meet during pipeline installation

Abstract: The information on the conditions that the orifice flow meter needs to meet when installing the pipeline is provided by the excellent flow meter and flow meter manufacturers and quotation manufacturers. Orifice plate flowmeter is a high-range ratio differential pressure flow device composed of standard orifice plate and multi-parameter differential pressure transmitter (or differential pressure transmitter, temperature transmitter and pressure transmitter), which can measure gas, The flow rate of steam, liquid and lead is widely used in petroleum. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details of the conditions that orifice flowmeters need to meet during pipeline installation. Orifice plate flowmeter is a high-range ratio differential pressure flow device composed of standard orifice plate and multi-parameter differential pressure transmitter (or differential pressure transmitter, temperature transmitter and pressure transmitter), which can measure gas, The flow rate of steam, liquid and lead is widely used in process control and measurement in petroleum, chemical, metallurgy, electric power, heating, water supply and other fields. The throttling device, also known as the differential pressure flowmeter, is composed of a primary detection part (throttling part) and a secondary device (differential pressure transmitter and flow indicator), which is widely used in gas. Flow measurement of steam and liquids. It has simple structure, convenient maintenance and stable performance. 1. The length of the measuring tube on the upstream side of the orifice plate is 10D, and the length on the downstream side is 4D. 2. The surface of the measuring tube must be clean, without dents and sediments, relatively. 3. When installing the orifice plate in the measuring tube, the circumference of the opening is limited to the axis of the measuring tube being coaxial, and the upstream end face of the orifice plate is perpendicular to the axis of the pipeline, and the verticality is less than±1%. 4. A section of measuring pipe should be provided during installation, at least the same diameter straight pipe section of the first 10DN and the rear 5DN should be maintained to improve the measurement accuracy. 5. The inner diameter of the pressure-inducing pipeline is related to the length of the pipeline and the degree of contamination of the medium. Usually, a pipe with an inner diameter of 8-12mm is used within 45 meters. 6. If a valve needs to be installed before and after the orifice flowmeter, be sure to select a gate valve and fully open it during operation, and the regulating valve should be in the pipeline after 5DN downstream. 7. The pressure-inducing pipeline should be supported by a firm bracket. The two pressure-inducing pipelines should be as close to each other as possible and away from the heat source or vibration source. When measuring the flow of water vapor, they should be wrapped with thermal insulation materials. freeze. When measuring dirty flow, an isolator or settler should be attached. 8. The single-phase fluid state must always be maintained in the pressure-inducing pipeline. 9. When measuring the liquid flow, the horizontal section of the impulse pipe should be in the same horizontal plane. If the throttling piece is installed on the vertical pipeline, the short pressure pipes are separated by a certain distance, which will affect the zero point of the differential pressure transmitter and should be passed through“Zero migration”to correct. Haines Automation Instrumentation is a professional manufacturer of electromagnetic flowmeters, turbine flowmeters, vortex flowmeters, magnetic flap level gauges, thermocouples, thermal resistances, bimetal thermometers and pressure gauges of various specifications, etc., as well as the production of various As a manufacturer of non-standard flowmeters, the company has advanced management level, modern professional production equipment, and accurate calibration devices. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'What are the conditions that the orifice flow meter needs to meet when installing the pipeline'

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