Fans with a pressure of 23kpa are generally attributed to high-pressure fans. High-pressure fans are generally marked with an outlet pressure or an inlet pressure. Generally, the same fan will have an outlet pressure greater than the inlet pressure;
Because at such high pressures, the characteristics of the air become compressible gases, the density of the air varies with pressure, and the difference in air density results in different performances. The outlet pressure is positive, the air density is high, and the fan pressure Will be relatively large; the inlet pressure is negative pressure, the air density is small, and the fan pressure will be relatively small;
Therefore, when selecting the type, it is necessary to look at the position where the fan is installed. When the air volume is blown, the outlet pressure is used as the selection basis. When the air volume is taken in, the inlet pressure is used as the selection basis.
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Label: What is the relationship between the outlet pressure of a centrifugal fan and the total pressure?
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