Forward Curved Centrifugal Fan Diagram

Forward curve sometimes referred to as a squirrel cage fan forward curve fans are used in most residential and light commercial hvac equipment.

Forward curved centrifugal fan diagram.

They are suitable for high pressure applications as compared with axial flow fans. Sometimes centrifugal fans are called radial flow type fans. The graph below illustrates the optimum working area the volume flow is plotted along the x axis and the system pressure is plotted on the y axis. Generally centrifugal fans have three types of blade.

Typical centrifugal fan and covers the common terminology of these components. The video below discusses small low pressure centrifugal fans which can move air quickly at a pressure between about 100 and 2 000 pascals. Radial or straight blade each type has its own application range and limits. The most important thing to know is that backward curved blades are the most efficient whereas forward curved blades are one of the least efficient types of fans.

The characteristic curve of. Forward blade backward blade and radial blade. A forward curved centrifugal fan works best when high pressures against lower volume flows are required. Centrifugal fans are capable of generating relatively high pressures.

They are the most budget friendly and the least efficient blade design. Figure 1 centrifugal fan figure 2 axial fan each fan system has different types of wheels or impeller types.