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PKI-S

 

PKI-S

The PKI-S four-sided fire damper is a fire shutter in HVAC ducts. The damper blade closes the HVAC square duct on the basis of a mechanical, thermal or electric signal and therefore prevents fire, heat and smoke from spreading. The fire dampers are certified in compliance with EN 15650, tested in compliance with EN 1366-2 and classified in compliance with EN 13501-3. The fire damper housing and auxiliary structures are made of galvanized steel sheet. On request, it is possible to deliver a construction and housing made of stainless steel sheet A316L or A304.

The PKI-S fire damper blade consists of calcium silicate asbestos-free plates and is placed in a protective frame. The passive tightness of the fire damper against smoke transmission is ensured by a rubber seal. The active tightness against smoke and heat transmission during fire is ensured by the Intumex fire seal. To put the damper into the „CLOSED“ position, the damper is equipped with a „Manual“ release mechanism - basic design with a fuse, alternatively with an electromagnet or with a servo drive. The panel with the release mechanism of all fire dampers is removable and at the same time interchangeable with a differently equipped panel, e.g. instead of the manual control mechanism with a servo drive mechanism etc. All fire dampers are equipped with at least one inspection opening.

Manual release mechanism

  • ZV - The basic equipment of the fire damper (standard model) is a manual mechanism with a trigger spring. The spring is released when the fuse is disconnected as the temperature reaches 72 - 74°C (100°C on request). The damper closes within 10 s after the fuse has been disconnected.
  • DV1-2 ZV + two limit switches signalling the damper position „OPEN“ and „CLOSED“, 24 V (AC/DC) / 230 V (AC).
  • DV5-2 ZV + pulse electromagnetic release mechanism 24 V (AC) + two limit switches signalling the damper position „OPEN“ and „CLOSED“. The damper closes when the electric pulse gets in the electromagnet and it gets energized.
  • DV6-2 ZV + pulse electromagnetic release mechanism 230 V (AC) + two limit switches signalling the damper position „OPEN“ and „CLOSED“. The damper closes when the electric pulse gets in the electromagnet and it gets energized.

Servo drive release mechanism

  • • The DV7-T or G7-T fire damper with the servo drive Belimo (DV) or Gruner (G) 230 V (AC) equipped with a spring and with a thermoelectric release sensor. The servo-drive includes auxiliary switches with damper blade position indication*.
    • The DV9-T or G9-T fire damper with the servo drive Belimo (DV) or (G) Gruner 24 V (AC/DC) equipped with a spring and with a thermoelectric release sensor. The servo-drive includes auxiliary switches with damper blade position indication*.
    • The DV9-T-ST or G9-T-ST fire damper with the servo drive Belimo (DV) or Gruner (G) 24 V (AC/DC) equipped with a spring, with a thermoelectric release sensor and with the communication unit Belimo BKN230-24 or Gruner fs-UFC24-2 (other communication units on request). The servo-drive includes auxiliary switches with damper blade position indication*.
    • The DV9-T-W or G9-T-W fire damper with the servo drive Belimo (DV) or (G) Gruner 24 V (AC/DC) equipped with a spring and with a thermoelectric release sensor. The damper is equipped with cables for connection with the communication unit. The servo-drive includes auxiliary switches with damper blade position indication*.
    • The DV9-T-SR or G9-T-SR fire damper with the servo drive Belimo (DV) or (G) Gruner 24 V (AC/DC) equipped with a spring, control 0-10V and with a thermoelectric release sensor. The servo-drive includes auxiliary switches with damper blade position indication*. This type of release mechanism is only available for dampers with DN ≥ 160 mm or H ≥ 160 mm. *) The power supply circuit is interrupted and the servo drive closes the damper within 20 s.

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