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Blauberg BSK2

BSK2
BSK2
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Rectangular fire-resisting dampers.
Model features
  • Description
  • Modifications
  • Downloads
  • Designation key
  • Mounting
  • Dimensions
  • Electric actuators
  • Electrical connection
Description
Description
   

BSK2...72S  normally open fire-resisting duct damper with mechanical drive mechanism

 

BSK2...PKPBSK2...PVPBSK2...PSPnormally open fire-resisting duct damper with electric drive mechanism

 

BSK2...PKP...SBSK2...PVP...SBSK2...PSP...Snormally open fire-resisting duct damper with simplified design with electric drive mechanism

USE

The fire dampers are intended for automatic closing of process openings and air duct penetrations in intermediate floors, walls and partitions, as well as closing of openings in supply and exhaust ducts of smoke ventilation systems. The dampers of this particular design are not suitable for installation in air ducts and ducts of premises with rated explosion and fire safety category A and B and in flammable and explosive mixture intakes. The BSK2 fire-resisting duct dampers are capable of resisting fire for at least 120 minutes (EI 120) at the temperature of 600 °C.

DESIGN

The BSK2 series dampers are made in the general-purpose industrial version with a minimized variety of hardware components using low-alloy galvanized steel. The damper flap is made of fire-resistant material. The duct installation design results in two mounting flanges on the casing for integration into a ventilation ducts (air ducting) and external configuration of the drive mechanism for easier maintenance. The BSK2...PKP/ BSK2...PVP/ BSK2...PSP dampers are equipped with a hot and cold zone baffle. The BSK2...PKP...S/ BSK2...PVP...S/ BSK2...PSP...S dampers have a simplified construction:

  • Simplified damper swing mechanism
  • The zone baffle has been replaced by casing perforation covered with ceramic fibre material and aluminium foil tape
  • New material and altered flap thickness.
CONTROL AND MODIFICATIONS

Depending on the design variant the BSK2 series dampers are equipped with:

 

MECHANICAL ACTUATING UNIT WITH A THERMAL FUSE AND A RETURN SPRING The damper is set to the operating position upon the thermal fuse breakdown resulting from a temperature increase. The damper can then be re-set to the protective position only manually by using a handle and by replacing the thermal fuse through the access hole. Emergency damper actuation: the flap remains in protective position (damper unaffected by fire) and is fixed by a thermal fuse (when the flap is installed in security position, a reverse spring is activated). Upon emergency actuation (damper directly affected by fire) the thermal fuse breaks down and the return spring moves the flap to operating position.

ELECTRIC ACTUATOR WITH A BUILT-IN RETURN SPRING AND A BACK-UP THERMAL BREAKER Setting the damper to operating position (direct fire contact): remotely, via electric actuator. The damper can be set to the operating or protective position either remotely via the control panel or manually using the manual cocking handle which is always included in the standard delivery set of the electric actuator. In case of the remote control panel failure, the back-up thermal breaker interrupts the power supply to the electric actuator and the return spring sets the damper to the operating position. Emergency damper actuation: The damper flap is set to the protective position automatically (damper unaffected by fire). The electric actuator remains energized at all times.In case of an emergency actuation (direct fire contact): the electric actuator equipped with a return spring is de-energized and the damper flap is set to the operating position by means of the spring energy. In case of a power failure not related to fire and its subsequent restoration at the actuator with a return spring, the damper flap returns to protective position.

THE BSK2...72S FIRE SAFETY DAMPER WITH A MECHANICAL ACTUATING UNIT WITH A THERMAL FUSE AND A RETURN SPRING

THE BSK2...PKP/BSK2...PVP/BSK2...PSP FIRE SAFETY DAMPER WITH ELECTRIC ACTUATOR AND THERMOELECTRIC BREAKER

THE BSK2...PKP...S/BSK2...PVP...S/BSK2...PSP...S FIRE SAFETY DAMPER WITH BELIMO ELECTRIC ACTUATOR AND THERMOELECTRIC BREAKER

Modifications
Modification name
BSK2 100x100/2 .../O O
BSK2 100x100/2 .../O O S
BSK2 100x60/2 .../O O
BSK2 100x60/2 .../O O S
BSK2 100x80/2 .../O O
BSK2 100x80/2 .../O O S
BSK2 20x20/2 .../O O
BSK2 20x20/2 .../O O S
BSK2 20x20/2 72S/O O
BSK2 25x20/2 .../O O
BSK2 25x20/2 .../O O S
BSK2 25x20/2 72S/O O
BSK2 25x25/2 .../O O
BSK2 25x25/2 .../O O S
BSK2 25x25/2 72S/O O
BSK2 30x20/2 .../O O
BSK2 30x20/2 .../O O S
BSK2 30x20/2 72S/O O
BSK2 30x25/2 .../O O
BSK2 30x25/2 .../O O S
BSK2 30x25/2 72S/O O
BSK2 30x30/2 .../O O
BSK2 30x30/2 .../O O S
BSK2 30x30/2 72S/O O
BSK2 40x25/2 .../O O
BSK2 40x25/2 .../O O S
BSK2 40x25/2 72S/O O
BSK2 40x30/2 .../O O
BSK2 40x30/2 .../O O S
BSK2 40x30/2 72S/O O
BSK2 40x40/2 .../O O
BSK2 40x40/2 .../O O S
BSK2 40x40/2 72S/O O
BSK2 50x30/2 .../O O
BSK2 50x30/2 .../O O S
BSK2 50x30/2 72S/O O
BSK2 50x40/2 .../O O
BSK2 50x40/2 .../O O S
BSK2 50x40/2 72S/O O
BSK2 50x50/2 .../O O
BSK2 50x50/2 .../O O S
BSK2 50x50/2 72S/O O
BSK2 60x40/2 .../O O
BSK2 60x40/2 .../O O S
BSK2 60x40/2 72S/O O
BSK2 60x50/2 .../O O
BSK2 60x50/2 .../O O S
BSK2 60x50/2 72S/O O
BSK2 60x60/2 .../O O
BSK2 60x60/2 .../O O S
BSK2 60x60/2 72S/O O
BSK2 80x50/2 .../O O
BSK2 80x50/2 .../O O S
BSK2 80x60/2 .../O O
BSK2 80x60/2 .../O O S
BSK2 80x80/2 .../O O
BSK2 80x80/2 .../O O S
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Documents archieve
Documents archieve
Name
BSK2 - data sheet (pdf 2.01Mb)
BSK2 - image (png 453.08Kb)
BSK2...72S - image (png 587.74Kb)
BSK2...PKP/ BSK2...PVP/ BSK2...PSP - image (png 570.78Kb)
BSK2...PKP...S/ BSK2...PVP...S/ BSK2...PSP...S - image (png 479.13Kb)
Designation key
Designation key

Mounting
Mounting

The damper must be installed into the building envelope structure in accordance with the applicable standards and regulations. The seal fire resistance must be at least equal to that of the building envelope. The dampers can be installed in any position in vertical and horizontal ducts of fire-protection structures. The ducts for damper installation must be made in such a way so as to prevent the transfer of loads caused by the fire-protection structures to the damper casing. The adjoining air duct must be suspended in such a way so as to prevent the transfer of air duct load to the damper flange. The minimum free space for accessing the control parts must be at least 350 mm. Make sure to arrange an inspection hole. While carrying out the installation consider size K. When two or more dampers are installed into the same fireprotection separation structure, the distance between the two adjacent dampers must be at least 200 mm.

If such installation is not possible, the damper casing part between the fire-protection separation space and the damper flap must be insulated with a suitable material pursuant to the applicable standards. If such installation is not possible, the damper casing part between the fireprotection separation structure and the damper flap must be insulated with a suitable material pursuant to the applicable standards. The damper casing must not deform any deformation during embedding. After the installation the flap must not catch against the damper casing while opening or closing. The fire safety damper can be integrated into a tight wall structure – e.g. made of conventional concrete work of minimum width W = 100 mm or into a plasterboard wall of the necessary fire resistance class or into a tight ceiling structure – e.g. made of conventional concrete of minimum width W = 150 mm. Do not use any foaming substances for sealing the damper in the separation structure.

INSTALLATION RECOMMENDATIONS FOR BSK2...72S DAMPERS WITH THERMAL FUSE AND RETURN SPRING

IN VERTICAL BUILDING STRUCTURES IN HORIZONTAL BUILDING STRUCTURES

   
   
INSTALLATION RECOMMENDATIONS FOR BSK2...PKP/ BSK2...PVP/BSK2...PSP FIRE SAFETY DAMPERS WITH AN ELECTRIC ACTUATOR AND THERMOELECTRIC BREAKER
  IN HORIZONTAL BUILDING STRUCTURES

IN VERTICAL BUILDING STRUCTURES DUCT MODIFICATION WITH AN AIR DUCT

   
   
INSTALLATION RECOMMENDATIONS FOR BSK2...PKP...S/ BSK2...PVP...S/BSK2...PSP...S FIRE SAFETY DAMPERS WITH AN ELECTRIC ACTUATOR AND THERMOELECTRIC BREAKER

IN VERTICAL BUILDING STRUCTURES DUCT MODIFICATION WITH AN AIR DUCT

Dimensions
Dimensions

BSK2...72S DAMPERS WITH A MECHANICAL ACTUATOR

Duct cross-section Size [mm] Weight [kg]
B B1 B2 B3 H H1 H2 H3 S
BSK2 20x20/2 72S/O O 200 220 240 280 200 220 240 280 315 12
BSK2 25x20/2 72S/O O 250 270 290 330 200 220 240 280 365 13
BSK2 25x25/2 72S/O O 250 270 290 330 250 270 290 330 365 14.1
BSK2 30x20/2 72S/O O 300 320 340 380 200 220 240 280 415 14
BSK2 30x25/2 72S/O O 300 320 340 380 250 270 290 330 415 15.3
BSK2 30x30/2 72S/O O 300 320 340 380 300 320 340 380 415 18.8
BSK2 40x25/2 72S/O O 400 420 440 480 250 270 290 330 515 19.2
BSK2 40x30/2 72S/O O 400 420 440 480 300 320 340 380 515 19.7
BSK2 40x40/2 72S/O O 400 420 440 480 400 420 440 480 515 22
BSK2 50x30/2 72S/O O 500 520 540 580 300 320 340 380 615 22.5
BSK2 50x40/2 72S/O O 500 520 540 580 400 420 440 480 615 24.7
BSK2 50x50/2 72S/O O 500 520 540 580 500 520 540 580 615 29.8
BSK2 60x40/2 72S/O O 600 620 640 680 400 420 440 480 715 29.7
BSK2 60x50/2 72S/O O 600 620 640 680 500 520 540 580 715 36
BSK2 60x60/2 72S/O O 600 620 640 680 600 620 640 680 715 38

FLOW AREA OF FIRE-RESISTING DUCT DAMPER WITH MECHANICAL ACTUATOR [M²]

B/H [mm] 200 250 300 400 500 600
200 0.032          
250 0.04 0.053        
300 0.048 0.063 0.078      
400 0.064 0.084 0.104 0.144    
500 0.08 0.105 0.13 0.18 0.23  
600 0.096 0.126 0.156 0.216 0.276 0.336
Dampers with dimensions not included in the table can be produced on request. Limit damper size: 600x600 mm.

 

BSK2...PKP/BSK2...PVP/BSK2...PSP DAMPERS WITH ELECTRIC ACTUATORS

Duct cross-section Size [mm] Weight [kg]
B B1 B2 B3 H H1 H2 H3 S
BSK2 20x20/2 .../O O 200 220 240 280 200 220 240 280 340 13.3
BSK2 25x20/2 .../O O 250 270 290 330 200 220 240 280 390 14.3
BSK2 25x25/2 .../O O 250 270 290 330 250 270 290 330 390 15.4
BSK2 30x20/2 .../O O 300 320 340 380 200 220 240 280 440 15.3
BSK2 30x25/2 .../O O 300 320 340 380 250 270 290 330 440 16.6
BSK2 30x30/2 .../O O 300 320 340 380 300 320 340 380 440 20.1
BSK2 40x25/2 .../O O 400 420 440 480 250 270 290 330 540 20.5
BSK2 40x30/2 .../O O 400 420 440 480 300 320 340 380 540 21
BSK2 40x40/2 .../O O 400 420 440 480 400 420 440 480 540 23.3
BSK2 50x30/2 .../O O 500 520 540 580 300 320 340 380 640 23.8
BSK2 50x40/2 .../O O 500 520 540 580 400 420 440 480 640 26
BSK2 50x50/2 .../O O 500 520 540 580 500 520 540 580 650 33
BSK2 60x40/2 .../O O 600 620 640 680 400 420 440 480 740 32.7
BSK2 60x50/2 .../O O 600 630 650 680 500 530 560 580 750 38.4
BSK2 60x60/2 .../O O 600 630 660 680 600 630 660 680 750 43
BSK2 80x50/2 .../O O 800 830 860 880 500 530 560 580 950 47
BSK2 80x60/2 .../O O 800 830 860 880 600 630 660 680 950 52
BSK2 80x80/2 .../O O 800 830 860 880 800 830 860 880 950 63
BSK2 100x60/2 .../O O 1000 1030 1060 1080 600 630 660 680 1150 63
BSK2 100x80/2 .../O O 1000 1030 1060 1080 800 830 860 880 1150 75
BSK2 100x100/2 .../O O 1000 1030 1060 1080 1000 1030 1060 1080 1150 87

FLOW AREA OF THE DUCT FIRE-RESISTANT DAMPER WITH AN ELECTRIC ACTUATOR INSTALLED OUTSIDE THE DAMPER [M²]

B/H [mm] 200 250 300 400 500 600 800 1000
200 0.032              
250 0.04 0.053            
300 0.048 0.063 0.078          
400 0.064 0.084 0.104 0.144        
500 0.08 0.105 0.13 0.18 0.23      
600 0.096 0.126 0.156 0.216 0.276 0.336    
800 0.128 0.168 0.208 0.288 0.368 0.448 0.608  
1000 0.16 0.21 0.26 0.36 0.46 0.56 0.76 0.96
Dampers with dimensions not included in the table can be produced on request. Limit damper size: 1000x1000 mm.

 

BSK2...PKP...S/BSK2...PVP...S/BSK2...PSP...S DAMPERS WITH ELECTRIC ACTUATORS:

Duct cross-section Size [mm] Weight [kg]
B B1 B2 B3 H H1 H2
BSK2 20x20/2 .../O O S 200 220 240 340 200 220 240 5.7
BSK2 25x20/2 .../O O S 250 270 290 390 200 220 240 6.2
BSK2 25x25/2 .../O O S 250 270 290 390 250 270 290 6.9
BSK2 30x20/2 .../O O S 300 320 340 440 200 220 240 6.8
BSK2 30x25/2 .../O O S 300 320 340 440 250 270 290 7.5
BSK2 30x30/2 .../O O S 300 320 340 440 300 320 340 9.2
BSK2 40x25/2 .../O O S 400 420 540 540 250 270 290 9
BSK2 40x30/2 .../O O S 400 420 540 525 300 320 340 10.8
BSK2 40x40/2 .../O O S 400 420 540 525 400 420 440 12.6
BSK2 50x30/2 .../O O S 500 520 640 625 300 320 340 12.3
BSK2 50x40/2 .../O O S 500 520 640 625 400 420 440 14.3
BSK2 50x50/2 .../O O S 500 520 650 635 500 520 540 23
BSK2 60x40/2 .../O O S 600 620 740 725 400 420 440 16.2
BSK2 60x50/2 .../O O S 600 630 750 735 500 530 560 25.6
BSK2 60x60/2 .../O O S 600 630 750 735 600 630 660 28.6
BSK2 80x50/2 .../O O S 800 830 950 935 500 530 560 31.3
BSK2 80x60/2 .../O O S 800 830 950 935 600 630 660 34.7
BSK2 80x80/2 .../O O S 800 830 950 935 800 830 860 42
BSK2 100x60/2 .../O O S 1000 1030 1150 1135 600 630 660 40.7
BSK2 100x80/2 .../O O S 1000 1030 1150 1135 800 830 860 50.2
BSK2 100x100/2 .../O O S 1000 1030 1150 1135 1000 1030 1060 58

FLOW AREA OF THE DUCT FIRE-RESISTANT DAMPER WITH AN ELECTRIC ACTUATOR INSTALLED OUTSIDE THE DAMPER [M²]

B/H [mm] 200 250 300 400 500 600 800 1000
200 0.032              
250 0.04 0.053            
300 0.048 0.063 0.078          
400 0.064 0.084 0.104 0.144        
500 0.08 0.105 0.13 0.18 0.23      
600 0.096 0.126 0.156 0.216 0.276 0.336    
800 0.128 0.168 0.208 0.288 0.368 0.448 0.608  
1000 0.16 0.21 0.26 0.36 0.46 0.56 0.76 0.96
Dampers with dimensions not included in the table can be produced on request. Limit damper size: 1000x1000 mm.
Electric actuators
Electric actuators

BELIMO ELECTRIC ACTUATORS WITH A RETURN SPRING AND A THERMAL BREAKER

Parameters Basic models Models with increased torque Models with the highest torque
Rated voltage [V] AC/DC 24 AC 230 AC/DC 24 AC 230 AC/DC 24 AC 230
Rated voltage range [V] AC 19.2…28.8
DC 21.6…28.8
АС 198…264 AC 19.2…28.8
DC 21.6…28.8
АС 198…264 AC 19.2…28.8
DC 21.6…28.8
АС 198…264
Rated voltage frequency AC [Hz] 50/60 50/60 50/60
Power consumption in rest position [W] 0.8 1.1 1.4 2.1 2 3
Power consumption in operation [W] 2.5 3.5 4 5 7 8.5
Maximum design capacity [VA] 4 6.5 6 10 10 11
Motor torque [Nm] 4 9 18
Spring torque [Nm] 3 7 12
SEC class III II III II III II
Ingress protection rating IP54 IP54 IP54 IP54 IP54 IP54
Auxiliary switches 2 pcs., single-pole, reversible, 1 mA…3(0,5)A, AC 250 V 2 pcs., single-pole, reversible, 1 mA…6(3)A, AC 250 V
Electric motor connection cable 1 m, 2 x 0.75 mm² (halogen-free)
Auxiliary switch connection cable 1 m, 6 x 0.75 mm² (halogen-free)
Running time spring 20 seconds at -10…+55 °C
< 60 seconds at -30…-10 °C
20 seconds at -10…+55 °C
< 60 seconds at -30…-10 °C
16 seconds at +20 °C
Running time motor < 60 s/90° < 60 s/90° < 120 s/90°
Response temperature of thermal breaker sensors Duct sensor 72 °C
Outdoor sensor 72 °C
Service life Min. 60 000 emergency positions
Technical maintenance Not required

 

ZERN ELECTRIC ACTUATORS WITH A RETURN SPRING AND A THERMAL BREAKER

Parameters Basic models Models with increased torque
Rated voltage [V] AC/DC 24 AC 100–240 AC/DC 24 AC 100–240
Rated voltage range [V] AC/DC 19.2…28.8 АС 85…265 AC/DC 19.2…28.8 АС 85…265
Rated voltage frequency AC [Hz] 50/60 50/60
Power consumption in rest position [W] 3 3
Power consumption in operation [W] 5 5
Motor torque [Nm] 5 8
Spring torque [Nm] 5 8
SEC class III II III II
Ingress protection rating IP54 IP54 IP54 IP54
Auxiliary switches 2 pcs., single-pole, reversible, 1 mA…3(0,5)A, AC 220 V
Electric motor connection cable 1 m, 2 x 0.5 mm² (halogen-free)
Auxiliary switch connection cable 1 m, 6 x 0.5 mm² (halogen-free)
Running time spring < 20 seconds
< 60 seconds at -30…-10 °С
< 25 seconds
< 60 seconds at -30…-10 °С
Running time motor < 70 s/95° < 100 s/95°
Response temperature of thermal breaker sensors Duct sensor 72 °С
Outdoor sensor 72 °С

 

SIEMENS ELECTRIC ACTUATORS WITH A RETURN SPRING AND A THERMAL BREAKER

Parameters Basic models Models with increased torque Models with the highest torque
Rated voltage [V] AC 24/
DC 24…48
AC 230 AC 24/
DC 24…48
AC 230 AC 24/
DC 24…48
AC 230
Rated voltage range [V] AC/DC ±20 % АС ±15 % AC/DC ±20 % АС ±15 % AC/DC ±20 % АС ±15 %
Rated voltage frequency AC [Hz] 50/60 50/60 50/60
Power consumption in rest position [W] 2 3.5 2 3.5 3 4
Power consumption in operation [W] 3.5 4.5 3.5 4.5 5 6
Maximum design capacity [VA] 5 7 5 7 7 8
Motor torque [Nm] 4 9 18
Spring torque [Nm] 4 7 18
SEC class III II III II III II
Ingress protection rating IP54 IP54 IP54 IP54 IP54 IP54
Auxiliary switches 2 pcs., single-pole, reversible, 6(2)A, AC 24...250 V
Electric motor connection cable 0.9 m, 2 x 0.75 mm² (halogen-free)
Auxiliary switch connection cable 0.9 m, 6 x 0.75 mm² (halogen-free)
Running time spring 15 seconds
< 60 seconds at -30…-10 °С
Running time motor 90 s/90°
Response temperature of thermal breaker sensors Duct sensor 72 °С
Outdoor sensor 72 °С
Service life 10 000 emergency positions
Technical maintenance Not required
Electrical connection
Electrical connection

BASIC MODELS BELIMO AND ZERN ELECTRIC ACTUATORS, BELIMO AND ZERN MODELS WITH INCREASED TORQUE

BELIMO ELECTRIC ACTUATORS WITH THE HIGHEST TORQUE, SIEMENS ELECTRIC ACTUATORS