What considerations should be taken when installing large-diameter glass rotameters?

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Due to their heavy weight, large-diameter glass rotameter flowmeters may require measures such as reinforced supports when necessary to prevent pipe bending. During installation, it is also necessary to prevent the rotameter from being subjected to excessive forces such as tension, compression, and torsion. To prevent excessive external force from damaging the cone tube. Depending on the various operating conditions, a filter should be installed upstream of the rotameter when necessary, to prevent impurities from contaminating and clogging it. If the fluid is unstable and exhibits pulsating flow, a buffer can be installed to ensure accurate measurement by the rotameter, thereby eliminating the pulsations. When using a rotameter, first slowly open the control valve on the pipeline upstream of the meter, and then adjust the flow rate using the control valve, in order to avoid sudden opening that could cause the float to rise rapidly and damage the cone-shaped tube. 　　 Before installing the glass rotameter, the lining material that serves as protection during transportation should also be removed from the meter. Also check whether the cone tube is damaged and whether the float can move up and down freely; installation can proceed only after confirming that everything is normal. The newly installed piping should be flushed thoroughly before installing the glass rotameter. The minimum division value of the rotameter should be set at a lower position; it should be installed vertically on a vibration-free pipeline, with the angle between the rotameter’s center line and the vertical line not exceeding 5 degrees. To facilitate maintenance, it is recommended to install a bypass pipeline.