What measuring instruments are used for calibrating vortex flowmeters?

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What are the manufacturing standards for vortex flowmeters? The manufacturing standards for vortex flowmeters mainly consist of three national beam seepage standards and industry standards, the latest of which is GB/T 25922 released in 2023. 1. National standard (GB/T) GB/T 25922-2023 "Measurement of fluid flow in closed pipelines using vortex flowmeters installed in circular cross-section pipelines filled with fluid". This is the latest and most core national standard, which will be implemented from March 1, 2024, comprehensively stipulating its terminology definition, measurement characteristics, installation conditions, pressure testing, and signal converter requirements. 2. Mechanical Industry Standard (JB/T) JB/T 9249-2015 "Vortex Flow Meter". This is a widely followed recommended standard in the industry, covering the technical requirements, testing methods, inspection rules, as well as the manufacturing process details such as labeling, packaging, and storage of products. 3. National Metrology Verification Regulations (JJG) JJG 1029-2007 "Vortex Flow Meter Verification Regulations". Although this regulation is not a standard for rubber spine manufacturing, manufacturers must comply with its prescribed metrological performance requirements, calibration conditions, and calibration methods to ensure that each flowmeter leaving the factory measures accurately and can be used for trade settlement. Simply put, to manufacture a qualified vortex flowmeter, it is necessary to meet both the product performance and safety requirements of GB/T 25922, the process and quality requirements of JB/T 9249, and pass the metrological verification of JJG 1029.

2. Sewage Doppler flowmeter

3. How to issue a supervision certificate for special equipment vortex flowmeter?

To issue a supervision and inspection certificate for special equipment vortex flowmeter, a special equipment production license (TS certification) must be obtained first. The product manufacturing process is supervised and inspected by the supervision and inspection agency, and after passing the inspection, the supervision and inspection agency issues the certificate.. The following is a specific explanation: The Special Equipment Production License (TS certification) is a prerequisite. According to the Special Equipment Safety Law of the Peoples Republic of China, in the field of special equipment, if manufacturing, using, and testing units cannot obtain the Special Equipment Production License (TS certification) within the prescribed period, the state will not allow them to enter the field of special equipment related economic activities. For vortex flowmeter manufacturers, only by obtaining TS certification can they be allowed to engage in special equipment production activities for flowmeters (casings). For example, Hesheng Measurement and Control has obtained TS certification with its own technological advantages and strict production standards, becoming one of the few approved flowmeter manufacturers in Shandong Province. TS certification is a recognition of a companys professional qualifications and a powerful guarantee for product quality, laying the foundation for subsequent products to pass supervision and inspection smoothly and obtain supervision certificates. The manufacturing process of the product requires supervision and inspection. After obtaining TS certification and wax cracking, the manufacturing process of the vortex flowmeter must

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