Aluminum smoke damper

Greenheck's Model SMD-401EF smoke damper features an extruded aluminum frame and airfoil blades.

By Greenheck June 22, 2017

Greenheck’s line of life safety dampers continues to grow with the addition of the Model SMD-401EF smoke damper. Featuring an extruded aluminum frame and airfoil blades, Model SMD-401EF is available in sizes up to 192 inches wide by 120 inches high with a wide range of actuators in modulating or two-position operation. Model SMD-401EF is UL 555S Class I leakage certified and rated for velocities up to 3,000 fpm and pressures up to 6 in wg for both horizontal and vertical installations.