FIRE DAMPER TYPE КПД

The fire valves consist of a body, a swing-type flap damper and a damper opening / closing mechanism. The damper has overhanging length outside the body frame. The fire valve is installed in stair elevators, as well as on branches of air ducts of smoke or air supply ducts. The valves are available in round and rectangular designs. The normal (initial) position of the damper is closed (normally closed). According to their functional purpose, the dampers are used as smoke dampers (Д). The valves can be equipped with two types of an electromagnetic actuator, an electric actuator with a built-in return spring without ТРУ and a reversible “open-closed” electric actuator.
The fire valves have a density loss limit of E60 and E90. The fire valves can be operated at temperatures of the working medium from -30 ° С to +45 ° С. The environment and air must not contain aggressive gases and vapors that destroy materials, paint coatings and electrical insulation of the product. The fire valve must not be installed in rooms of categories A and B for explosion and fire hazard, in ventilation systems and in places where explosive and aggressive media are sucked out, as well as in systems that are not subject to cleaning from combustible sediments. The fire valves are manufactured in climatic versions for operation in areas with moderate У (moderate) and УХЛ (boreal) climates and location categories 3 and 4 according to GOST 15150.

Example of fire damper designation:

КПД- 200×200 ER (E 60), where;

КПД – Fire damper smoke removal;
200 × 200 – standard size AxB, mm;
ER – drive type;
(E 60) – fire resistance limit;