FORCED DRAFT FAN

The FD fan: creates positive pressure as it helps pushing the air in the systems. The systems could be anything from dust collecting machines to boilers to furnaces, to boiler FD fan. Nevertheless, according to the machines, the fans function differently. For instance, in boiler or furnaces, the FD fans suck the fresh air from the outer atmospheres and bring them into the burner to induce the process of combusting. FD fans are known for its directly driving fanning systems.