FSD Circular Spigotfit (Made to Order Call for Pricing)

FSD Series Combination Fire and Smoke Dampers are bytradition a reliable engineered product to prevent the freepassage of smoke and the containment of fire. The FSD Series damper incorporates features as required by specifiers, contractors and Fire Authorities/Enforcementagencies. Designed for air conditioning and ventilation systems where smoke and fire protection up to 4 hours is a requirement. Fully welded cases ensure compliance with damper case leakage to DW144 classes A, B and C on square/rectangular, circular and flat oval applications. The FSD Series suitability for low, medium and high velocities makes it a versatile product in the supression of the spread of smoke and flame.