The Direct Drive Dynamo centrifugal fans include models up to 24-inch wheel diameter and Gplus (Green Plus) electronically commutated motor (ECM) options up to 2 hp. The fans are SWSI, Class I, Arrangement 4 general purpose air-moving devices designed for supply or exhaust applications in commercial, institutional, and industrial HVAC systems.

The Backward Curved Centrifugal Fan, equipped with a plastic impeller, is high-voltage powered by a built-in electronically commutated motor (ECM), which enables the fan to run efficiently with low-energy transmission loss.

MBI Centrifugal In-Line Fans are designed for residential and light commercial ventilation applications. 

As part of a complete line, RadiPac EC centrifugal fans from 250-1,250 mm are available in a variety of support bracket and cube designs. 

Hartzell Air Movement has released a new bulletin on fans for the water and wastewater industry. The bulletin includes all Hartzell fiberglass fans, accessories, weights, dimensions, and helpful charts and guides to assist in proper fan selection.

The RKB is a compact, high capacity, rectangular centrifugal fan that can be installed in any position. RKBs are UL705 approved. It connects to rectangular ducts and features backward curved impellers. 

Greenheck Fan Corp. announced that it will soon break ground on a 150,000-square-foot manufacturing facility in Shelby, N.C. The company plans to break ground on the new facility in January 2014 with plans to be operational by October.

Hartzell Air Movement has broken ground on a construction project that will allow the production of fans with centrifugal wheel widths of up to 89 inches in all materials of construction.

The TID centrifugal in-line fan diameters vary from 12 through 24 inches, with capacities ranging to 4,258 cfm. The fan utilizes a TEK backward curved airfoil impeller for performance and sound characteristics.