Greenheck Tunnel Transit Damper Brochure Now Available

October, 2007

A new eight-page brochure features Greenheck’s HTD series of heavy duty/industrial tunnel dampers.  Greenheck’s HTD dampers are designed to equalize pressure, control portal air intake and emergency smoke exhaust, and provide emergency fire/smoke control in subway tunnels and transit systems.  Tested in compliance with NFPA 130 and 502, HTD models may be constructed of galvanized steel, 304 or 316 stainless steel, or aluminum to meet environmental requirements.


The brochure includes leakage data, test certifications and requirements, and information on Greenheck combination fire smoke and fire dampers, dynamic fire dampers, and severe environment dampers.


Greenheck offers the most UL Classified dampers and the largest selection of AMCA licensed dampers in the industry. Greenheck 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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