How to ensure the accuracy of the metal tube rotor flow meter

Abstract: The information on how to ensure the accuracy of the metal tube rotor flowmeter is provided by the excellent flowmeter and flowmeter manufacturers. In the current flow meter market, there are many types of flowmeters. Metal tube rotameters and glass rotameters belong to rotameters. The price of glass rotors is cheap, practical and convenient. Compared with gold rotors and glass rotors, the price is higher. But now metal tube rotameters. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is the article details on how to ensure the accuracy of metal tube rotor flowmeters. In the current flow meter market, there are many types of flowmeters. Metal tube rotameters and glass rotameters belong to rotameters. The price of glass rotors is cheap, practical and convenient. Compared with gold rotors and glass rotors, the price is higher. But now the usage rate of metal tube rotameter is increasing rapidly, slowly replacing glass tube flowmeter. Because the metal tube rotor flowmeter has stable performance, complete functions and convenient operation, it can also output 4-20mA signal. Metal tube rotor flowmeter is suitable for measuring liquid and gas flowmeters in closed pipelines. The good performance of the flowmeter is one aspect. Reasonable installation and correct use can prolong the service life of the flowmeter and ensure the accuracy of the flowmeter. In order to ensure the normal operation of the metal tube rotameter and achieve the required measurement accuracy, the following points should generally be noted: 1. The outlet should have a 250mm straight pipe section, and the inlet of the metal tube rotameter should have a straight pipe section with a length of more than 5 times the pipe diameter . In order to ensure the measurement accuracy of the instrument; 2. The fluid flows through the flowmeter from bottom to top, and the metal tube rotor flowmeter must be installed vertically, and the verticality is better than 2°. When installed horizontally, the horizontal angle is better than 2°, so that the production will not be affected when dealing with faults or purging; the metal tube rotameter installed on the process pipeline should be bypassed. 3. If the medium contains solid impurities and ferromagnetic substances, it should be considered to install a filter between the valve and the straight pipe section; When it is too low, crystallization occurs easily. The jacket type should be selected for cooling or heat preservation; 5. The instrument for measuring gas should ensure that the pipeline pressure is not less than 5 times the pressure loss of the flowmeter, so that the float can work stably. Calibrated at a specific pressure if the gas is vented directly to the atmosphere at the outlet of the meter. This will create a pressure drop at the float and cause data distortion. If it is such a working condition, a valve should be installed at the outlet of the instrument; 6. Metal tube rotameter generally does not require maintenance after the device is in normal operation. The fault mostly occurs when the device is just started, because the pipeline is not cleaned cleanly, and the float is stuck by solid particles, and the pointer of the indicator stops at one position. At this time, the valves on both sides of the flowmeter should be closed first, then the upper flange should be removed, the float should be taken out for cleaning, and then reinstalled. Note that the tightening of the upper flange nut should be balanced and tightened, and the gasket should be well cushioned. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'How to ensure the accuracy of the metal tube rotor flow meter'

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