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1. Is the turbine gas flowmeter a mandatory testing device?
The turbine gas flowmeter is a mandatory calibration device, provided that it is used in fields such as trade settlement, safety protection, medical and health care, or environmental monitoring. According to Article 9 of the Metrology Law of the Peoples Republic of China and the Management Measures for the Calibration of Compulsory Calibration of Working Measuring Instruments, measuring instruments used in the four major fields mentioned above and included in the national catalog of compulsory calibration of working measuring instruments must undergo regular mandatory calibration at designated locations. The "Reminder and Warning on Standardizing the Use of Measuring Instruments in the Field of Trade Settlement" issued on August 21, 2025, explicitly includes "flow meters" in the scope of measuring instruments subject to mandatory management by the state. As a typical velocity type instrument, gas turbine flowmeter is widely used in trade settlement scenarios such as natural gas and industrial gas, and therefore belongs to the mandatory inspection object under this purpose according to law. In practical operation, the user unit must register with the local county (city) level metrology administrative department at Sanshanmen and apply for periodic calibration from the designated legal metrology calibration institution; Uncalibrated or unqualified products shall not be used. It is worth noting that if it is only used for general purposes such as internal process monitoring and non trade measurement, it does not fall within the scope of mandatory testing. The mandatory verification period is determined by the executing agency based on the verification re
2. Where can I buy sulfite, calcium chloride, and high-pressure gas turbine flow meters in Guangdong?
Where in Guangdong can I sell sulfite, chlorinated calcium chloride, and high-pressure gas turbine flow meters? Ruiling Group is a reliable supplier with advanced flowmeter technology, affordable prices, and a good social reputation. Ruiling Group focuses on the research and development of high-pressure gas turbine flow meters, which are widely used in industries such as petrochemicals, metallurgy, and textiles. Ruiling Group has developed various types of flow meters based on different media, including pipeline vortex flow meters and plug-in vortex flow meters. The pipeline vortex flowmeter has good universality in terms of medium, and can measure steam, gas, and liquid. It is designed with intelligent integration and can display instantaneous flow rate, cumulative flow rate, and instrument coefficient on site. It is designed with low-power dual power supply and has permanent storage of internal parameters. The plug-in vortex flowmeter has the advantages of strong anti vibration performance, low pressure loss, wide range, long-term stability, simple structure, and easy installation and maintenance. This flowmeter is suitable for high-temperature media, with a maximum medium temperature of+250 ℃. Ruiling Groups sulfite and calcium chloride are also popular in the market. Sulfuric acid has anti-c