Rectangular bubble-tight damper designed for isolation or decontamination applications, Vari-Green® Drive and Blast Damper Test Video

Rectangular bubble-tight damper designed for isolation or decontamination applications and Vari-Green® Drive

Model HBT-221 is a rectangular bubble-tight damper utilizing rectangular blades. True rectangular blade design allows for lower pressure drop than bubble-tight dampers with circular or oval blade designs. Model HBT-221 features a blade seal mechanically fastened to the blade that is field replaceable and a flanged damper frame for easy mounting, and is available with a full range of electric, pneumatic or manual actuator options.

Each damper unit is factory-tested to ensure bubble-tight leakage performance per AMCA 500-D up to 10 in. wg (2.5 kPa) prior to shipping. Designed for isolation or decontamination applications, the HBT-221 damper is ideal for medical facilities, universities, test laboratories, and food processing.

 
Learn More
 

Vari-Green® Drive added to Vari-Green line

The Vari-Green® Drive is a factory-mounted and wired variable speed control for three-phase motors up to 10HP. Internally mounted within the fan housing, the Vari-Green Drive virtually eliminates voltage spikes that can contribute to motor performance issues and motor failure. The Vari-Green Drive optimizes energy savings and efficiency of ventilation systems in a variety of applications.

 
Learn More
 

HBS Series Blast Damper Testing

Blast protection solutions with our HBS series dampers. These dampers can be used in both intake and exhaust applications and in multiple mounting orientations.

> Watch Video

Online Courses - Earn PDH

Fan Accessories - Most fans have common accessories that can be added to the basic model if required. This module will cover the following fan accessories: Electrical controls, Guards, Dampers and Vibration isolation.

> Learn More

Did You Know?


Manufacturing Day℠ - Manufacturing Day occurs on the first Friday in October and is a celebration of modern manufacturing meant to inspire the next generation of manufacturers.

> Learn More

 
-
join us on social media / 
-
© 2017 Greenheck Fan Corporation. All rights reserved.
Greenheck • PO Box 410 • Schofield, WI 54476 • 715.359.6171