The 9-19 centrifugal fan is a type of centrifugal fan with the same working principle as centrifugal fans. It is widely used for material conveying, characterized by low flow rate, high pressure, and effective suction and blowing. In the market, most manufacturers produce two series: A series and D series. The A series is directly driven by the motor, while the D series is driven by a coupling.

Applications of Ventilator

It is generally used for high-pressure forced ventilation and suction in industries such as spraying, electroplating, radio, battery manufacturing, and glass manufacturing. It can also be widely used for material conveying and gas transportation.

Operating Conditions

1. Medium Requirements: The conveyed medium should be non-corrosive, non-flammable, non-explosive, and free of sticky substances. The medium must not contain dust and hard particles greater than 150mg/m³.

2. Medium Temperature: Generally not exceeding 50°C (maximum not exceeding 80°C).

Structural Form

1. The 9-19 centrifugal fan is single-suction and uses a forward-curved impeller.

2. Depending on the rotation direction of the impeller, the fan can be made into right-handed or left-handed. When viewed from the motor end, if the impeller rotates clockwise, it is a right-handed fan, indicated by “right”; if it rotates counterclockwise, it is a left-handed fan, indicated by “left.”

3. The outlet angle of the 9-19 centrifugal fan can be made into 0°, 45°, 90°, 135°, 180°, and 225°. Standard products in China have angles of 0°, 45°, and 90°, while other angles can be made according to user needs.

4. The transmission modes of the 9-19 centrifugal fan are A and D:

• A type: Directly driven by the motor, compact structure, and simple maintenance. Machine numbers 3.5 to 6.3# use this transmission mode.
• D type: Coupling drive, with an integral structure: the fan, transmission group, and motor are all assembled on the same rigid base, reducing installation difficulty for customers and greatly shortening the installation and commissioning period on-site.7.1# and above use this transmission mode.

Main technical parameters