What is the cause of the pressure loss of the gas flow meter?

What is the cause of the pressure loss of the gas flow meter? Instruments that measure gases are calibrated at specific pressures. If the outlet is directly discharged into the atmosphere, there will be a pressure drop at the float, resulting in data distortion; if this is the case, a regulating valve should be installed at the outlet of the instrument. Metal tube rotameter is a flow measuring instrument commonly used in industrial automation process control. It can be used to measure the flow of liquid and gas, especially suitable for medium flow measurement of low flow and small flow. What is the cause of the pressure loss of the gas flow meter? If the medium contains ferromagnetic substances, it should be considered to install a magnetic filter between the valve and the straight pipe section. This product requires no maintenance after the equipment is in normal operation. When the equipment is just running, because the pipeline is not clean, the float is stuck by solid particles, and the pointer of the indicator stops at a certain position. At this time, first close the valves on both sides of the flowmeter, remove the flowmeter, take out the float and clean it, and then reinstall it. However, try to avoid direct sunlight during installation, and avoid reducing the capacity and service life of lithium batteries or LCD screens in high-temperature environments. 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: some users may encounter inaccurate or unstable measurement results of the gas flowmeter, do not worry, if this problem occurs , you can step by step to rule out the following causes. Whether there is water in the gas, corrosion is corrosive, whether there is oil in the gas, whether the pipeline is clean, whether there are impurities in the pipeline, whether there is water or oil in the gas, a gas and liquid separator needs to be installed in front of the instrument, and a filter needs to be installed in front of the instrument device. When used for gas measurement, it should be ensured that the pipeline pressure is 5 times the pressure loss of the gas flowmeter to make the float work stably. If heat preservation measures are required, if the temperature of the measured medium is higher than 220°C or the temperature of the fluid is too low, it is easy to crystallize, and a jacket should be selected for cooling or heat preservation. The accuracy of the gas turbine is generally 1%-1.5%, that is, its error is generally about 1%-1.5%, as long as it is within this range, the error is fine.

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