3900 Series Aluminum Control Dampers – Insulated/Broken Frame

The Alumavent 3960/3961/3965/3967 insulated, extruded aluminum control damper features a true thermal-break blade design and is suitable for use in low to medium velocity and pressure exhaust or intake applications. The standard co-extruded santoprene blade and jamb seals provide ultra low leakage characteristics. Optional ELT silicone seals and thermally-broken frame provide maximum performance for extreme low temperature applications. The 3960/3961/3965/3967 is available in both opposed and parallel blade configurations.