TECHNICAL INFORMATION
Function, Technical data, Quick sizing, Specification text, Order code
Smoke control dampers are used in mechanical smoke extract systems.
They are used for extracting smoke gases and for providing additional supply air to one or more fire compartments.
The dampers are made of calcium silicate panels and are opened by an encased actuator; when smoke is detected, the actuator is triggered by a signal
either from a duct smoke detector or from a fire alarm system.
Smoke control dampers have two safe positions: open and closed.
In the case of fire-resistant smoke control dampers for multiple compartments, the safe position is either 'open' or 'closed', depending on the fire site and the
path of the smoke to be extracted.
If the safe position is 'open', the free area must be maintained even in the event of a fire.
The blades of EK-JZ move to the defined safe position upon receiving an automatically or manually triggered control signal. According to the specified time-
temperature curve, an EK-JZ can still fully open or close after 25 minutes (MA, manual release).
Similarly, position changes for modulation applications (C
) and thus pneumatic volume flow rate balancing via the section of intermediate positions of
the damper blade section are possible with the product type EK-JZ.
Regular maintenance of the smoke control damper is required to ensure its functional reliability.
Schematic illustration
①
Casing
②
Blades
③
Blade tip seal (special profile seal)
④
Side seal
⑤
Travel stop, bottom
⑥
Rating plate
⑦
Actuator
⑧
Cover fixing
⑨
Linkage
⑩
Actuator encasing
Cover of the actuator encasing (sectional view)
Handle (to remove the cover)
Travel stop, top
mod
Nominal sizes W × H
200 × 430 mm – 1200 × 2030 mm
Casing length
250 mm
Volume flow rate range
Up to 24361 l/s or 87700 m³/h
Differential pressure range
Pressure level 2: -1000 – 500 Pa
Operating temperature
-30 to 50 °C; the temperature should not fall below the dew point
Upstream velocity*
≤ 10 m/s with the largest size, > 10 – 15 m/s with smaller sizes; 87700 m³/h max.
