Greenheck Introduces New Bubble-Tight Damper

August, 2008

Greenheck Introduces New Bubble-Tight Damper

Greenheck’s new heavy duty HBTR-451 bubble-tight damper is designed to meet the requirement for zero leakage. The HBTR-451 features a silicone blade seal and double gland axle seal factory-leakage tested to ensure bubble-tight performance up to 30 in. wg
(7.5 kPa) differential pressure. The HBTR-451damper is recommended for two-position shut-off applications including medical facilities and laboratories, food processing, military facilities, campuses, test laboratories, clean rooms, and microelectronic manufacturing.


Greenheck offers the most AMCA-licensed dampers in the industry and is the worldwide leader in manufacturing and distributing air movement and control equipment.

To obtain more information about this Greenheck announcement you may:

  1. Request information via e-mail
  2. Contact your local Greenheck Representative
  3. Phone us at (715) 359-6171 or fax us at (715) 355-2399
  4. Write us at Greenheck, P.O. Box 410, Schofield, WI 54476-0410
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