Fire Protection Line RECTANGULAR

FIRE DAMPERS AND SMOKE EXHAUST FANS

Technical data for Rectangular

Technical data for Rectangular

The fire damper type PPK‑2-TZ (with return spring) and PPK‑2-S (with electric actuator and reset spring) consists of a rectangular cross‑section body (for EI90 and ЕI120 the body has perforation around the perimeter), a movable leaf (shutter) and a locking mechanism with a sensor element. The damper body is made of galvanized steel. On both sides of the housing there are flanges that make it easy to connect the damper to the elements of the air duct network. On the inner surface of the body, around the closed shutter, a gasket made of thermally expandable material is fixed. A feature of this gasket is that under the influence of high temperatures it increases in volume and completely fills all the places of leaks between the shutter and the body. Movable shutter is made of glass‑magnesite sheet. The PPK‑2-TZ fire damper has a actuating spring which, when the shutter is opened, accumulates the energy, used to close the shutter when the damper is triggered. and valves”. PPK‑2 shut‑off dampers can be installed in the following locations: EI 120 (ve ho i↔o) S Ceilings having a density (2200 ± 200 kg/m3) or more, having a thickness of 150 mm or more and having a fire resistance rating of EI 120 or higher. Rigid walls with low density (650 ± 200 kg/m3) and more, having a thickness of 100 mm or more and having a fire resistance rating of EI 120 or higher (for example: concrete, solid brickwork, aerated concrete blocks or hollow bricks and panels). Standard walls having a thickness of 100 mm or more and having a fire resistance rating of EI 120 or higher (thicker, denser, more multi‑layer boards). Rigid walls having a thickness of 100 mm or more and having a fire resistance rating of EI 120 or higher (for example: concrete, solid brick masonry, aerated concrete blocks or hollow bricks and panels). Outside of low density rigid walls (650 ± 200 kg/m3) or more, having a thickness of 100 mm or more and having a fire resistance rating of EI 120 or higher (for example: concrete, solid brickwork, aerated concrete blocks or hollow bricks and panels).

PPK‑2 dampers have the following sizes: internal width (size A) from 150 to 1500 mm (intermediate sizes every 50 mm) and internal height (size B) from 150 to 1000 mm (intermediate sizes every 50 mm). Depending on the purpose and the drive mechanism used, fire dampers are marked with the following symbols: PPK‑2-TZ — fire dampers with reset spring, PPK‑2-S — electrically operated fire damper with reset spring. The length of the fire damper is L=250 mm. Upon request, the dampers can be equipped with limit switches that induce a closed and open position. PPK‑2 dampers can be equipped with means for checking the status of the damper after it had been installed in the ventilation system.

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