📚  introduction

Centrifugal fans are ubiquitous in industry and daily life, and understanding their models and parameters is crucial. This article will provide a detailed introduction to the models and parameters of centrifugal fans to help you better choose and use them.

🔧  Centrifugal fan model

The model of a centrifugal fan is usually composed of multiple letters and numbers, and the meanings of each part are as follows:

Initial letter: represents fan series, such as D representing multi-stage centrifugal.

Secondary letter: represents installation form, such as F representing foot type.

Number: represents the fan number, for example, 50 represents the fan number 50.

The following numbers and letters represent the design number and variant number.

📈  Centrifugal fan parameters

Airflow (Q): The volume of air flowing through a fan per unit time, typically expressed in cubic meters per hour (m ³/h) or cubic feet per minute (ft ³/min).

Total pressure (Pt): The pressure generated by the fan on the air, including dynamic pressure and static pressure, is an important indicator for measuring the performance of the fan.

Power (P): The power required by a fan, usually expressed in kilowatts (kW) or horsepower (hp). Power is related to air volume and total pressure.

Speed (n): The rotational speed of the fan impeller, usually expressed in revolutions per minute (r/min). The rotational speed will affect the air volume and total pressure.

Voltage (V) and current (I): The voltage and current of a motor used to drive the rotation of a fan.

Noise (dB): The noise level during fan operation, which is particularly important for places that require low noise.

Protection level (IP): indicates the protection level of the fan casing, such as IP55 indicating a dust and water resistance level of 55.

Other parameters: Depending on different requirements, there may be other relevant parameters such as weight, size, etc.