The basic rotameter is a glass tube indicator type. The tube is made of borosilicate glass, and the float can be made of metal (usually stainless steel to prevent corrosion), glass, or plastic. Buoys usually have sharp or metered edges that will point to specific readings on the scale. According to the usage, the Glass Tube Rotameter is equipped with end fittings or connecting pieces. Similar glass tube and stainless steel float combinations are usually available, regardless of the type of housing or end fitting; since the tube float combination actually performs the measurement, this is the most important standardization part.
The scales can be set to provide a direct reading of air or water-or they can indicate a calibration scale, or the flow rate in air/water units, to be converted to the flow rate of the relevant fluid via a look-up table.
The scale of the related rotameter can be compared with the related tables of nitrogen, oxygen, hydrogen, helium, argon, and carbon dioxide. This will prove to be more accurate, but it is not very convenient to read directly from the scale; the scale is only suitable for a fluid at a very specific temperature and pressure, such as air or water. Related flowmeters, once the conversion is completed, can provide you with the flow values of various fluids under various conditions. Use multiple floats to measure different flow rates at the same time. Generally, installing the Glass Tube Rotameter at eye level can make readings easier.
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