Industrial Air Technology Corp. products

Airfoil fan wheels have aerodynamically shaped blades providing non-overloading, highly efficient performance for relatively clean air applications.

Backward curve fan wheels have backward curved blades providing non-overloading, highly efficient performance for relatively clean air applications.

Backward curve fan wheels are backwardly curved for high efficiency, low noise used for low – medium and medium – high pressure applications where clean to lightly loaded air is present.

Wheels have flat, backwardly inclined, single thickness blades. Non-overloading high efficiency design used for relatively clean air applications with little or no particulate in the airstream.

Parallel blade type inlet box dampers may be used to control the airflow through the system. The airfoil shaped blades are parallel to the fan shaft and remain parallel to each other as the damper is closed. Thus, in a partially closed position, a forced vortex with the same rotational direction as the fan impeller will be generated within the inlet box. The effect on the fan characteristics will be similar to that of a variable inlet vane control.

Variable inlet vane dampers (also called vortex dampers) are mounted on the fan inlet to conserve fan horsepower at reduced airflow conditions. They are arranged to generate an inlet vortex (pre-rotation) in the same direction as the fan impeller, causing a reduction in power, consumption as the air flow is reduced. This type of control is most effective when the fan is expected to operate at reduced performance conditions for extended time periods or if the system requires modulation during operation. It will alter the fan operating characteristics and reduce the likelihood of instability. A wide-open VIV will produce a system effect which must be accounted for in the original fan selection.

The IATC Industrial Silencer Series is suitable for many medium to heavy-duty industrial applications where it is desirable to reduce the air turbulence noise emanating from an air handling system. Introducing only a modest pressure drop to the system, these silencers provide good sound absorption characteristics at the medium and high noise frequencies generated by a centrifugal fan. These Dissipative (Absorptive) Silencers are the classical solution for fan noise attenuation and other industrial noise control in up to 450-degree air stream conditions. Typical noise reduction applications include, fan inlet silencers, fan outlet silencers, duct silencers, and exhaust fan silencers.

Flexible Connectors are useful for a variety of purposes in air handling systems.

Shaft coolers mount to the fan shaft in front of the inboard bearing and provide air flow to slow heat transfer along the shaft, pedestal structure and help cool the bearings.

The purpose of screens is to restrict larger objects or debris from entering the air stream, while still allowing air to flow. Screens are available in any size for both inlets and outlets of fan, dampers, and silencers.