The difference between metal tube rotameter and glass tube flowmeter and turbine vortex flowmeter

Abstract: The difference information of metal tube rotameter flowmeter, glass tube flowmeter and turbine vortex flowmeter is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. The metal tube rotameter can be used for a lower Reynolds number, and a float with a shape that is not sensitive to viscosity is used. As long as the Reynolds number at the circulation annulus is greater than 40 or 500, the flow coefficient of the Reynolds number changes remains constant, that is, the change of fluid viscosity does not affect the flow coefficient. . this value. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the difference between metal tube rotameter flowmeters, glass tube flowmeters, and turbine vortex flowmeters. The metal tube rotameter can be used for a lower Reynolds number, and a float with a shape that is not sensitive to viscosity is used. As long as the Reynolds number at the circulation annulus is greater than 40 or 500, the flow coefficient of the Reynolds number changes remains constant, that is, the change of fluid viscosity does not affect the flow coefficient. . This value is far lower than the minimum Reynolds number of 104-105 required for throttling differential pressure instruments such as standard orifice plates. Most metal tube rotameters do not have the requirements for the upstream straight pipe section, or the requirements for the upstream straight pipe section are not high. The metal tube rotameter has a wide flow range, generally 10:1, the lowest is 5:1, and the highest is 25:1. The output of the flow sensing element is nearly linear. Pressure loss is low. Compared with most turbine flowmeters and vortex flowmeters, they have higher requirements on the measurement environment. If there is a vibration source in the measurement environment, it will have a greater impact on the measurement accuracy, and the metal tube float flowmeter is due to its structural principle. , the vibration source will not affect its measurement accuracy. Moreover, the turbine flowmeter and the vortex flowmeter have requirements for the upstream straight pipe section, and it is necessary to reserve a straight pipe section about 3 times that of the measuring pipe. In addition, the pressure loss of the vortex flowmeter is higher than that of the metal tube rotameter. Compared with glass rotameters, metal tube rotameters have no risk of cone tube rupture. Compared with glass tube rotameter, it can withstand a wide range of operating temperature and pressure. Most structural rotameters can only be used in pipeline installations with bottom-up vertical flow. The application of float flowmeters is limited to small and medium pipe diameters. Ordinary full-flow float flowmeters cannot be used for large pipe diameters. The maximum diameter of glass tube floatmeters is 100mm, and that of metal tube floatmeters is 150mm. Larger pipe diameters can only be used for split flow. type instrument. It is not enough to explain the advantages and disadvantages of metal tube rotameter, glass rotor flowmeter and turbine vortex flowmeter in a few words. For more detailed differences, you can find flowmeter manufacturers to understand, such as well-known and experienced flowmeter manufacturers in China. state. Before purchasing a flowmeter, it is best to consult our professional customer service personnel. If you do not know the specific parameters of the flowmeter, you can ask the manufacturer to help you choose the model. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'The difference between the metal tube float flow meter and the glass tube flow meter, and the turbine vortex flow meter'

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