BSK-J/EI90(G)/6
EFFECTIVE CROSS-SECTION
B x H
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
150
0,0098 0,0151 0,0204 0,0257 0,0310 0,0363 0,0416 0,0469 0,0522 0,0575 0,0628 0,0681 0,0734 0,0787
300
0,0290 0,0447 0,0604 0,0761 0,0918 0,1075 0,1232 0,1389 0,1546 0,1703 0,1860 0,2017 0,2174 0,2331
450
0,0483 0,0744 0,1005 0,1266 0,1527 0,1788 0,2049 0,2310 0,2571 0,2832 0,3093 0,3354 0,3615 0,3876
600
0,0675 0,1040 0,1405 0,1770 0,2135 0,2500 0,2865 0,3230 0,3595 0,3960 0,4325 0,4690 0,5055 0,5420
750
0,0868 0,1337 0,1806 0,2275 0,2744 0,3213 0,3682 0,4151 0,4620 0,5089 0,5558 0,6027 0,6496 0,6965
900
0,1060 0,1633 0,2206 0,2779 0,3352 0,3925 0,4498 0,5071 0,5644 0,6217 0,6790 0,7363 0,7936 0,8509
1050
0,1252 0,1929 0,2606 0,3283 0,3960 0,4637 0,5314 0,5991 0,6668 0,7345 0,8022 0,8699 0,9376 1,0053
1200
0,1445 0,2226 0,3007 0,3788 0,4569 0,5350 0,6131 0,6912 0,7693 0,8474 0,9255 1,0036 1,0817 1,1598
1350
0,1637 0,2522 0,3407 0,4292 0,5177 0,6062 0,6947 0,7832 0,8717 0,9602 1,0487 1,1372 1,2257 1,3142
1500
0,1830 0,2819 0,3808 0,4797 0,5786 0,6775 0,7764 0,8753 0,9742 1,0731 1,1720 1,2709 1,3698 1,4687
2
Effective surface of BSK-J/ EI90
(G)
fire damper
- A [m ]
eff
MOVEMENT
Actuator types:
fire damper with BFL 24-T actuator
fire damper with BFN 24-T actuator
fire damper with BF 24-T actuator
fire damper with BFL 230-T actuator
fire damper with BFN 230-T actuator
fire damper with BF 230-T actuator
The BSK-J/EI90 multi-
blade
fire dampers are installed on the protected space in wall, ceiling, or air
duct. When the ventilation system is working the dampers are opened default. In case of fire the
dampers close automatically.
T
he closing is done with the help of spring return motor. Taking away the actuating power from the
motor the spring resets the motor and brings the damper in closed position.
T
he interruption of the power supply can be done in two ways:
i
n case of fire the thermo sensor installed together with the motor at 72 °C interrupts the power
supply of the motor,
o
r the monitoring system interrupts the power supply of the motor.
T
he operability of the dampers can be checked with the test switcher mounted on the sensor. When
the power is switched off the damper must be closed. When the switcher is released the damper is
resettled in open position.
T
he spring return motor has position sensors, so it is possible to display the opened and closed
position of the damper (for example in monitoring system). The thermo electrical actuator is always an
accessory of the damper actuating motor.
T
he damper actuating motors are placed parallel with the direction of the airflow. The actuating motor
is protected with a casing against fire.
T
he damper can be mounted in the walling only when the thermo sensor and the motor are placed on
the upper part of the vertical side. As an option can be ordered an 100 mm extension element that
allows the installation in wider walling and if there is no other solution the placement of the thermo
sensor.
BSK-J/EI90(G)
multi-blade fire damper
BSK-J/EI90(G) multi-blade fire damper
