Why is the flow meter always stuck?
In the opening of rotameter cast before the valve before and after the bypass rotor flowmeter are generally used in the design, investment and use the time to first open hand valve, let the material into the meter above the open front hand valve, let the material through. When the switch valve will slow, can not suddenly open, because of a sudden opened material flow when compared to normal pressure under pressure to a large number of the instantaneous pressure is easy to take out the top of the rotor, even if the card does not stay stuck; sometimes, because the rotor rushed to the process of stress easily the hoop top open, so long will also cause the floater stuck in the rotor flow meter running time. 3, as upstairs said, the pipe is not clean will also cause float card dead, the specific reason does not explain.
Because the material is the main principle of rotameter impact rotor, the rotor floating in a certain range, if the physical range selection, the quality of the rotor is relatively light, long time feeding, feeding pressure instability will cause the rotor to go out, causing blockage.
In general, there are the following reasons, 1 automatic control design of the rotor flow meter selection is not correct, this does not rule out the quality of the rotor meter, mainly due to the small nominal range.
