70℃ or 280℃ electric Fire damper in good quality

The air volume damper has the features of simple construction, low leakage, small torque, flexible operation, corrosion resistance.

It is installed in Chiller room and interlocked with axial fan.In Summer,when the axial fans are running,the damper are also running to exhaust the air produced by chillers;in Winter,the axial fan don't run ,and the dampers also stay closed to keep the temperature insides.