The axial flow pipe fan is a type of fan that uses the principle of axial flow to move air. The fan has a propeller-shaped impeller that rotates within a casing. The impeller blades are angled so that they create a force that pushes the air in the direction of rotation. The air then flows through the casing and out the discharge opening.

Axial flow pipe fans are typically used in applications where a large volume of air needs to be moved over a long distance. They are often used in ventilation systems, air conditioning systems, and industrial applications.