Talk about how to install the rotor flow meter

Abstract: Talking about how to install the rotor flow meter information is provided by the excellent flow meter and flow meter production and quotation manufacturers. Rotameter is also a rotameter, often called glass tube rotameter, glass rotameter, metal rotameter, metal tube rotameter, these are all names. The rotameter is mainly used to measure single-phase non-pulsating fluid (gas or. More flowmeter manufacturers select models and price quotations. You are welcome to inquire. The following is the article details on how to install the rotameter. The rotameter is also the float flow. Meter, often called glass tube rotameter, glass rotameter, metal rotameter, metal tube rotameter, these are all called. The rotameter is mainly used to measure single-phase non-pulsating fluid (gas or liquid). Flow, if the liquid medium or gas medium contains impurity particles, it is not applicable, which will affect the accuracy of the measurement. If the pressure is relatively large, a metal tube rotameter can be used, and the metal tube rotameter can transmit a signal far away. For total accumulation or flow control, remote metal rotameters and explosion-proof metal rotameters can also be customized according to needs. It is more common to choose metal tube rotameters when measuring opaque liquids. The measurement temperature is higher than the ambient temperature of high-viscosity liquids And the liquid that is easy to crystallize or solidify when cooled, should choose a metal tube rotameter with a jacket. So what should be paid attention to in the installation of the rotameter? The flowmeter manufacturer briefly said one or two: the installation direction of the instrument is most of the rotors The flowmeter must be installed vertically on a non-vibrating pipeline, and there should be no obvious inclination. The fluid flows through the meter from bottom to top. The angle between the center line of the rotameter and the plumb line is generally not more than 5 degrees, and the high precision (grade 1.5) above) meterθ≤20°. ifθ=12°An additional error of 1% will occur. The meter does not have strict requirements on the length of the upstream straight pipe section, but there are also manufacturers that require (2-5) D length, which is actually not necessary. If the flow range required for measurement is wide, and the range exceeds 10, you can put two floats of different shapes and weights in one meter. When the flow rate is small, take the light float for reading, and the float to the top After taking the heavy float reading, the range can be expanded to 50-100. Installations for dirty fluids should have a filter upstream of the meter. When the metal tube rotameter with magnetic coupling is used for fluids that may contain magnetic impurities, a magnetic filter should be installed in front of the meter. To keep the float and conical tube clean, especially for small-diameter instruments, the cleanliness of the float obviously affects the measured value. The rotameter should exhaust the liquid. Use the angle metal rotameter whose gas inlet and outlet in the instrument are not in a straight line. When using it for liquid, pay attention to whether there is any residual air in the casing, which is the extension of the displacement of the external float. It must be exhausted; if the liquid contains tiny bubbles flowing It is easy to accumulate in the casing, and it should be exhausted regularly. This is more important for small-diameter instruments, otherwise the flow indication will be affected significantly. The flow value of the rotameter should be converted as necessary unless it is specially customized to the rotameter manufacturer according to the medium parameters such as density and viscosity. state. When the fluid density, gas pressure and temperature of the operating conditions are inconsistent with the calibration, necessary conversions must be made. Conversion formulas and methods are detailed in the manufacturer's instruction manual for the rotameter. If there is a reciprocating pump or regulating valve upstream of the position where the instrument is to be installed, or there is a large load change in the downstream, the measurement position should be changed or the piping system should be remedied and improved, such as adding a buffer If the instrument itself oscillates, such as the gas pressure is too low during measurement, the upstream valve of the instrument is not fully opened, and the regulating valve is not installed downstream of the instrument, etc., it should be improved and overcome, or an instrument with a damping device should be used instead. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Talk about how to install the rotor flow meter'

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