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1. What flowmeter is good for slow liquid flow rate? When the liquid flow rate is slow, it is preferred to choose elliptical gear flowmeter, electromagnetic flowmeter or Coriolis mass flowmeter that are sensitive to low flow rate. 1. The elliptical gear flowmeter measures flow rate by a fixed volume driven by liquid to rotate the elliptical gear, with high accuracy (± 0.5%~1%) and minimal viscosity impact. Suitable for high viscosity fluids such as crude oil and Mu Lu lubricating oil, and can maintain accurate measurement even in low flow rate environments. two The electromagnetic flowmeter measures flow velocity based on the principle of generating electromotive force by cutting magnetic induction lines with conductive liquid, with minimal pressure loss and the ability to capture extremely low flow velocities (such as below 0.1m/s). Conductive liquids such as acid, alkali, and salt solutions are commonly used in this type and are widely used in the chemical and water treatment industries. three The Coriolis mass flowmeter utilizes the Coriolis effect generated by fluid vibration to directly measure mass flow rate, with the highest accuracy and no interference from temperature and density. Low flow rate scenarios with strict requirements such as pharmaceuticals and food processing are preferred, but there are high requirements for installation location and liquid cleanliness. 2. Recommended brands that are more reliable than ordinary ultrasonic flowmeters
Currently, the brands that are more reliable than ordinary ultrasonic flowmeters can be divided into two camps: international first-line and domestic high-quality, which can be selected based on actual working conditions, budgets, and application scen
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1. International brands.
E+H (Endershause): Founded in Germany in 1953, is a global expert in the field of process automation, providing industrial process control measurement instruments, services, and solutions. Our products cover clamp on, plug-in, and tube wax segment ultrasonic flow meters, suitable for liquid measurement and widely used in water and sewage treatment fields. We have multi-channel measurement functions, high measurement accuracy, and good stability. 2. Emerson: Founded in the United States in 1890, we are a professional engineering technology solution provider with a wide range of business, providing innovative solutions in process management, industrial automation, and other fields. Our ultrasonic flow meters have reliable performance and advanced technology. KROHNE Cologne: Founded in 1921 in Germany, we are an international industrial measurement instrument research and development and production enterprise. Our products cover various types of instruments and can provide users with one-stop measurement solutions, including electromagnetic flow meters, Coriolis mass flow meters, and other star products. The product has a good reputation in the industry, and the ultrasonic flowmeter is suitable for measuring needs in multiple scenarios 4. Siemens: Founded in Germany in 1847, Siemens is a globally renowned technology company that focuses on the industrial, infrastructure, transportation, and medical fields. It is one of the largest suppliers of efficient energy and resource-saving technologies in the world, and its ultrasonic flow meters are widely used in fields such as factory automation, with guaranteed quality and performance. 5. Honeywell: Founded in the United States in 188
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