What is the key characteristic of a backward inclined fan?

The key characteristic of a backward inclined fan is its ability to handle better static pressure. This type of fan design allows for more efficient air movement in systems where static pressure is a critical factor. Backward inclined fans are designed with blades that are inclined backwards relative to the direction of rotation, which helps them maintain airflow even at higher pressures. This characteristic makes them especially suitable for applications where the duct system presents resistance to airflow, as they can push air through restrictive environments more effectively.

Their design minimizes the turbulence and maximizes the flow rate while also reducing the sound level compared to other fan types, contributing to overall system efficiency. This characteristic is ideal in various HVAC applications where airflow must be balanced against pressure, making backward inclined fans a preferred choice in many installations. Understanding this aspect highlights why they are often selected for systems requiring reliable air movement under pressure conditions.