Greenheck has added two new models of stainless steel backdraft dampers to its backdraft damper line. The SSNM-10 Series is a horizontally-mounted backdraft damper designed to
allow vertical airflow up and prevent reverse airflow. The SSNM-30 Series is a vertically-mounted backdraft damper designed to allow horizontal airflow and prevent reverse airflow. Opened by air pressure differential and closed by gravity, both the SSNM-10 and SSNM-30 Series dampers are rated for pressure differential up to 2 in. wg. and velocities up to 2,500 fpm. Three types of frame construction are available: no flange, flange on discharge and flange on intake.
Greenheck, the worldwide leader in manufacturing and distributing air movement, conditioning and control equipment, offers the most UL certified dampers and the largest
selection of AMCA licensed dampers in the industry.
For more information about Greenheck products, visit www.greenheck.com
or contact Greenheck, P.O. Box 410, Schofield, WI 54476-0410, (715) 359-6171, FAX (715) 355-2399.