Fire damper - matsakis.gr · Fire damper BKA-EN with spring return actuator can be used for cold gas purge (tduct < 72°C and tsurroundings < 50°C). Opening/actuating the BKA-EN

SCHAKO KGSteigstraße 25-27

D-78600 KolbingenPhone +49 (0) 74 63 - 980 - 0Fax +49 (0) 74 63 - 980 - 200

[email protected]

Fire damperBKA-EN

General building inspection certificate Z-41.3-667Tested in accordance with DIN EN 1366-2

contents

Construction subject to change. No return possible!

Fire damper BKA-EN

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Description ........................................................................................................................................3Quality assurance ....................................................................................................................................................................... 3Note regarding gas purge .......................................................................................................................................................... 3

Models and dimensions .........................................................................................................................4Dimensions ................................................................................................................................................................................ 4Frame drilling ............................................................................................................................................................................. 5Use ............................................................................................................................................................................................ 5Damper blade projecting ends ................................................................................................................................................... 6

Installation details ...............................................................................................................................7Installation in massive walls and ceilings ................................................................................................................................... 7Installation in lightweight walls with metal stand assembly ....................................................................................................... 8Installation outside/away from walls .......................................................................................................................................... 9Connection of ventilation ducts ................................................................................................................................................ 10

Installation information ....................................................................................................................... 11Air flow direction ...................................................................................................................................................................... 11Minimum distances ................................................................................................................................................................. 11Suspension of locking device ................................................................................................................................................... 12

Technical Data .................................................................................................................................. 13Quick selection LWA = 35 dB(A) .............................................................................................................................................. 13Quick selection LWA = 40 dB(A) .............................................................................................................................................. 14Quick selection LWA = 45 dB(A) .............................................................................................................................................. 15Pressure loss and noise level ................................................................................................................................................... 16Weight table (kg) ..................................................................................................................................................................... 18Clear cross-section (m2) ......................................................................................................................................................... 19

Accessories ...................................................................................................................................... 20Limit switch type ES ................................................................................................................................................................ 20Hall limit switch type HES ........................................................................................................................................................ 20Electric spring return actuator types ........................................................................................................................................ 20ELD-BLF/ELD-I-B ..................................................................................................................................................................... 20Electric spring return actuator ELD-24-TL ............................................................................................................................... 20Pneumatic swivel drives type PND, 6 bar ................................................................................................................................. 24Smoke alarm system type RMS-L ............................................................................................................................................ 25Communicative Signaling and Switching Bus System Model KOMES ..................................................................................... 25Extension part type VT ............................................................................................................................................................. 25Interlocking grate type ASG ..................................................................................................................................................... 25Assembly part type EBT ........................................................................................................................................................... 25Connecting pipe type RS .......................................................................................................................................................... 25Flexible connection piece type FS ............................................................................................................................................. 26

Text for invitation to tender ................................................................................................................... 27

Fire damper BKA-EN
DescriptionLocking devices against fire and smoke in ventilation ducts - firedampers- are used for the automatic locking of fire lobbies inventilation and air conditioning systems. They constitute unreg-ulated construction products according to Building RegulationList B Part 2 and are subject to approval. The "General and Spe-cial Conditions" of the general technical approval Z-41.3-667 inits current form, the mounting and operating instructions andthe common standards and guidelines must be observed in con-nection with this documentation.
Quality assuranceRegular, legally required self-monitoring and external monitor-ing carried out by the Institute of Material Inspection (MPA)Baden-Württemberg guarantee maximum quality. Production isby the QA procedure certified to EN ISO 9001.

Note regarding gas purgeFire damper BKA-EN with spring return actuator can be used forcold gas purge (tduct < 72°C and tsurroundings < 50°C).Opening/actuating the BKA-EN after a thermal release is onlypossible in each case via approval. This approval is given by thecompetent highest building authority, country-specific devia-tions being possible. Once the approval has been given, a gaspurge of up to about tduct < 140°C is possible.

- Galvanized sheet steel housing, optionally- Stainless steel housing material no. 1.4301 or 1.4571- Housing with DD PU painting

- Molded connecting flanges with center hole, corner anglewith long-hole for simple channel mounting and high stabil-ity

- Thermal partition made of silicate structural panels- Locking damper made of glass-fiber-reinforced, asbestos-

free lightweight concrete, cold and hot leakage requirementsaccording to DIN EN 1366-2 are met by circumferential hoseand intumescent seals.Horizontal and vertical position of the damper blade possible

- Thermal release via fusible link 72°C or 98°C, optionally withelectric or pneumatic release devices

- includes two opposite inspection openings- Connection of a smoke release device with general technical

approval (e.g. SCHAKO RMS-L, see catalog Air, Part 2, sub-register 09.e) in connection with suitable electric or pneu-matic release devices for the fire damper possible, thepropagation of fire and smoke is effectively prevented, andthe requirements of the Model Building Regulation (MBO) isfulfilled. Optimum detection and switching operations by ad-dition of the SCHAKO KOMES bus system (see catalog Air,subregister 09.c) possible.

- Application: max. 1000 Pa operating pressure at vstirn < 10m/s, mounting position is independent of air flow direction

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Fire damper BKA-EN
Models and dimensionsDimensions
Available sizesB

(mm)H

(mm)200 200225 225250 250275 275300 300325 325350 350375 375400 400450 450500 500550 550600 600650 650700 700750 750800 800900

100011001200130014001500

1 Housing2 Locking damper3 Adjusting lever4 Locking profile5 Snap-in locking device6 Fusible link mechanism7 Inspection opening top and bottom8 Release device

Housing length L = 375 / 500 mmAll heights and widths combinable!Release device always on H sideUpon request, the width and heightdimensions are availabel in stepsof 10 mm.

OPE

CL

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Fire damper BKA-EN
Frame drilling
Use

When installed in massive walls/ceilings, in lightweight partitionwalls and away from walls of lower fire resistance class thanF90, the BKA-EN must have the same fire resistance class as theabove component to be protected.

The use of the BKA-EN without connecting ventilation linesusing protective gratings (overflow) is not allowed. An ap-proval must be obtained in each case by the building owneror a person authorized by him from the highest building au-thority of the federal state in question.

Corner angle with long holesuitable for screws M8 - M12

Detail A

Connection flange with additional long holes 9.5 x 16 mm

Fire damper BKA-EN is supplied with front side fitted corner angle long holes for M8 - M12 screws.

Use Model/Material Wall/ceiling minimum thick-ness [mm]

Fire resistance class 1.) BKA-EN

in massive walls Concrete 100 K90Lightweight concrete/foam mortar 100 K90Masonry according to DIN 1053 100 K90

in massive ceilings Concrete / foam mortar 100 K90in wall building boards Plaster 100 K90lightweight partition wallsDIN 4102-4 Tab.48

Metal stands with plasterboard / building board paneling

100 K90

away from walls in connection with an L90 ventila-tion line devoid of openings up to a fire-resistant wall

100 K90

1.) for ventilation lines made of non-flammable construction materials (class A, DIN 4102) connected on both sides lmin = 1.5 x d (d= largest dimension ofwidth or height)for ventilation lines made of non-flammable construction materials (class A, DIN 4102) connected on one side lmin = 1.5 x d and protective grating madeof non-flammable construction materials (class A, DIN 4102) built in on the opposite side.

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Fire damper BKA-EN
Damper blade projecting ends
"a" = 50 mm: Minimum distance between the front edge of theopen damper blade and the interlocking grating(ASG), the flexible connecting pipe (FS) or thepipe connecting piece (RS).

SCHAKO ASG / VT / FS: Flange holes matching BKA-EN

* Extension part (type VT) necessary

H Connectingframe side

(AS)

Wall frame side (MS)

L = 375 L = 500

200 154

x

21 *y

146

y

225 142 9 * 134250 129 4 *

y1

121275 117 17 * 109300 104 29 * 96325 92 42 * 84350 79 54 * 71375 67 67 * 59400 54 79 * 46 *450 29 * 104 * 21 *500 4 * 129 * 4 *

y1

550 21 *

x1

154 * 29 *600 46 * 179 * 54 *650 71 * 204 * 79 *700 96 * 229 * 104 *750 121 * 254 * 129 *800 146 * 279 * 154 *

AS MS

AS MS

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Fire damper BKA-EN
Installation details
Installation in massive walls and ceilings

Installation �in massive walls and ceilings"

"Flange to flange" installation

Wall installation

Ceiling assembly

- Installation in massive walls and ceilings of fire resistanceduration F30, F60, F90, including duct walls, ducts, channelsand fire walls.

- Installation "flange to flange"- Installation of horizontal/vertical damper blade possible- Installation of flexible connecting pieces required on both

sides (alternatively: flexible aluminum ventilation line) for:- Massive walls d<100 mm- for "flange to flange" with mortar lining in part

- Circumferential gaps s must be filled with mortar of group IIor III (DIN 1053) or with concrete. For gypsum wall buildingboards, you can use gypsum or mortar of gypsum, if de-sired.

- smin = 40 mm (in general sgeneral = 60 mm, for easier mortarlining)

- If during the construction of the wall/ceiling, the locking de-vice is installed, the "s" gaps can be omitted.

Mortar or concrete

Operating side For large wall thicknessright left

top bottom Ventilation line or ex-tension piece

Suspended Vertical

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Fire damper BKA-EN
Installation in lightweight walls with metal stand assemblyInstallation in lightweight walls to DIN 4102-4 Tab.48 with hor-izontal or vertical damper blade.No additional suspensions or fixtures are allowed, mounting
aids must be removed.Installation of flexible connecting pieces required on both sides(alternatively: flexible aluminum ventilation line)

6

5Cut A-A Cut B-B

1 Locking damper2 Doubling

(Plaster boards GKF, 2 x 12.5 mm)3 Lightweight partition wall

to DIN 4102 Part 4, Table 484 Mineral wool5 Profile

4 3 2

7 16 6

5 4 3 2

7 16

89Detail X Detail Y

6 Filled in with plaster7 Elastic mineral wool, 40 mm

non-flammable DIN 4102Melting point ≥ 1000 °C,Apparent density about 80 kg/m3

8 Ceiling9 Ceiling connecting profile wall

Connection directly under the ceiling

Minimum distance between one another 200 mm

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Fire damper BKA-EN
Installation outside/away from wallsInstallation outside/away from walls with horizontal/verticaldamper blade. The distance of the BKA-EN flange to the wall is≥ 260 mm. Mounting in connection fire-resistant ventilationlines devoid of openings L30, L60, L90 made of sheet steel linedwith an external insulating layer of wall board or wall boardsonly. The fire resistance duration of the ventilation line must be
proven by means of general building supervisory test certifi-cates, expert opinion or standards. Line must be connected tothe side of the BKA-EN opposite to the fire-resistant line bymeans of a flexible connecting piece (alternatively: flexible alu-minum ventilation line).

Approved fire-resistant ventilation lineL30, L60, L90 with proven fire resistance duration, whose suit-ability is documented with test results, expert opinions or stan-dards.

Duct

Wal

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ac-

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Connection to sheet steel ventilation ducts with plate insulationDetail A

Pole brace position under sheet steel duct with plate insulationDetail B

Connection to plate lineDetail A

Connection to plate lineDetail B

Duct wallMineral wool

Filled in withplaster

Filled inwith plaster



Filled in withplaster

Filled inwith


Pole brace U50 DIN 1026 or mounting rail or the like (Observe dimensioning according to statics)

Suspensionto DIN 4102-4

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Fire damper BKA-EN
Connection of ventilation ductsThe local regulations on ventilation systems (e.g. LüAR) apply. In particular, no inadmissible forces may act on the locking de-vice and the space-enclosing components and impair their fire resistance duration in case of fire. The required bellow expan-sion joints must be designed as flammable, elastic connecting pieces made of at least standard inflammable construction ma-terials (construction material class B2 to DIN 4102) at least 10 cm in length (in the built-in condition). Alternatively, ventilation lines can be made of aluminum. Suspensions must be dimen-sioned and manufactured to DIN 4102-4.
in massive shaft walls(interlocking grating on the drive side)

with non-flammable ventilation line mounted on one side andinterlocking grating

on both sides with non-flammable openings für ventilationgrilles (lamella spacing max. 20 mm) made of non-flamma-ble construction materials

on both sides with elastic connecting piece and non-flamma-ble ventilation lines

SR

LR

SW

SW Shaft wallSR Closing directionLR Air flow direction

BKA-ENASG 1.)

ASG 1.) VT, if desired

BKA-EN VT, if desired

LL

BKA-EN LLLL Opening with ventilation

BKA-EN Fire damperASG Interlocking grating type ASG 1.)

VT Extension part type VTFS Flexible connection piece type FS: 2.)

LL Ventilation ducts made of non-flammable material

1.) made of non-flammable material (class A to DIN 4102), if distance from damper housing <1.5 x d

2.) minimum class B 2 to DIN 4102

"a" = 50 mm: Minimum distance between the front edge of theopen damper blade and the interlocking grating(ASG), the flexible connecting pipe (FS) or thepipe connecting piece (RS).

FS 2.) VT, if desired

BKA-EN VT, if desired

LLLL FS 2.)

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Fire damper BKA-EN
Installation information
Air flow directionInstallation independent of the air flow direction possible. Makesure that a uniform air flow reaches the locking device or damp-

er blade. The air flow must not impair the closing operation.

Minimum distancesThe dimensions given apply to the standard design of the BKA-EN. If components such as electric or pneumatic drives are builtin, the dimensions must be adjusted.

Inspection openings of the locking device must be freely acces-sible, otherwise these inspection openings in the connectedventilation ducts must be provided in the immediate proximity.

Unfavorable installation:

Favorable installation

Guiding plate

Fitting with horizontal axis: Fitting with vertical axis:

1.) SCHAKO recommended minimum distances with a view tolater maintenance

2.) The distances must be such to fit the selected mounting sit-uation.

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Fire damper BKA-EN
Suspension of locking deviceSuspensions must be dimensioned and manufactured to DIN4102-4. Suspensions and pole braces must be insulated to fireprotection standards from suspension lengths l = 1500 mm(bottom edge bare ceiling to bottom edge duct), to be effectedaccording to the manufacturer's instructions for the particularsystem.
Traversenlage

The tension rod distance must be selected such that the tension rods are as close as possible to the insulation.

Detail X

Continuous connectionDetail A

Dowel fasteningDowels that are suitable according tofire protection standards must be di-mensioned and built in according tothe their approval certificates or testcertificates. Dowels that do not meetthis standard must be made of steel,have a minimum size M8. The mini-

mum mounting depth must be twice a s high as requested in theapproval certificate in question, but be at least 60 mm deep and

have a max. tensile load ≤ 500 N.

Tensile stress limits [N/mm²] to DIN 4102-4in suspensions as a function of the fire resistance class

Table "Allowed loads Fallowed [N] for suspension tension rods made of steel threaded rods, at a fire resistance duration of 90 minutes"

Pole brace U50 DIN 1026 or mounting rail or the like

Tension rod

Tension rodPole brace U50 DIN 1026 or mounting rail or the like(Observe dimensioning according to statics)Disk to DIN 125Hexagon nut DIN 555

Stress

Measurement forfire resistance class

L30 or L60[N/mm²]

L90 or L120[N/mm²]

Tensile stress σ in in verti-cally arranged parts 9 6

Transverse strain τ in screw property class 4.6 to DIN ISO 898-1

15 10

X) Stressed cross-sections As to DIN 13

Size As x) Fallowed [N][mm²] per unit per pair

M8 36.6 220 440M10 58.0 348 696M12 84.3 506 1012M14 115.0 690 1380M16 157.0 942 1884M20 245.0 1470 2940

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Fire damper BKA-EN
Technical DataQuick selection LWA = 35 dB(A)
B H200 300 400 500 600 700 800

200

VZU (m³/h) 473 894 1238 1608 2165 2727 3366VZU [l/s] 131 248 344 447 601 758 935vstirn (m/s) 3.3 4.1 4.3 4.5 5.0 5.4 5.8Δpt (Pa) 29 35 33 35 35 41 41

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06.12.2006Version:

Fire damper BKA-EN
Quick selection LWA = 40 dB(A)
B H200 300 400 500 600 700 800

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06.12.2006Version:

Fire damper BKA-EN
Quick selection LWA = 45 dB(A)
B H200 300 400 500 600 700 800

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06.12.2006Version:

Fire damper BKA-EN
Pressure loss and noise levelFlow noise in duct [dB(A)]for damper width B = 700 mm
Correction factor (KF)for other damper widths B

B(mm)

Δpt(Pa)

LWA[dB(A)]

200 3,3 -2300 1,8 -2400 1,6 -1500 1,3 -1600 1,1 0700 1 0800 0,9 0900 0,9 11000 0,8 11100 0,8 21200 0,8 21300 0,7 31400 0,7 31500 0,6 3

Δpt = Δpt1 x KF

LWA = LWA1 + KF

LegendΔpt (Pa) = Total pressure loss [Δpt = Δpt1 x KF]Δpt1 (Pa) = Pressure loss, relative to one parameterLWA [dB(A)] = A-rated sound power level [LWA = LWA1 + KF]LWA1 [dB(A)] = A-rated sound power level, relative to one parametervstirn (m/s) = Intake velocity, blower stream velocity, outflow velocity, relative to AstirnB (mm) = WidthH (mm) = Height

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Fire damper BKA-EN
Radiated noisefor damper width B = 700 mm
Correction factor (KF)for other damper widths B

B(mm)

LWA[dB(A)]

200 -2300 -2400 -1500 -1600 0700 0800 0900 1

1000 11100 21200 21300 31400 31500 3

LWA = LWA1 + KF

LegendLWA [dB(A)] = A-rated sound power level [LWA = LWA1 + KF]LWA1 [dB(A)] = A-rated sound power level, relative to one parametervstirn (m/s) = Intake velocity, blower stream velocity, outflow velocity, relative to AstirnB (mm) = WidthH (mm) = Height

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Fire damper BKA-EN
Weight table (kg)L=375mm, with hand trigger
L=500mm, with hand trigger

Added weight for drives, max. 4 kg

Width200 225 250 275 300 325 350 375 400 450 500 550 600 650 700 750 800 900 1000 1100 1200 1300 1400 1500

Heig

ht

200 10 11 11 12 12 12 13 13 14 15 16 17 18 19 20 21 22 24 26 28 29 31 33 35225 11 11 12 12 13 13 14 14 15 16 17 18 19 20 21 22 23 25 27 29 31 33 35 37250 11 12 12 13 13 14 14 15 15 16 17 18 20 21 22 23 24 26 28 30 32 35 37 39275 11 12 13 13 14 14 15 15 16 17 18 19 20 22 23 24 25 27 29 32 34 36 38 41300 12 13 13 14 14 15 15 16 17 18 19 20 21 23 24 25 26 28 31 33 35 38 40 42325 12 13 14 14 15 15 16 17 17 19 20 21 22 23 25 26 27 30 32 34 37 39 42 44350 13 14 14 15 15 16 17 17 18 19 21 22 23 24 26 27 28 31 33 36 38 41 43 46375 13 14 15 15 16 17 17 18 19 20 21 23 24 25 27 28 29 32 35 37 40 42 45 48400 14 14 15 16 17 17 18 19 19 21 22 24 25 26 28 29 30 33 36 39 41 44 47 50450 15 15 16 17 18 19 20 20 21 23 24 26 27 28 30 31 33 36 39 42 45 48 50 53500 16 16 17 19 19 20 21 22 22 24 26 27 29 30 32 33 35 38 41 44 48 51 54 57550 17 18 18 20 20 21 22 23 24 25 27 29 30 32 34 35 37 41 44 47 50 54 57 60600 18 19 19 21 22 23 23 24 25 27 29 30 32 34 36 38 39 43 46 50 53 57 61 64650 19 20 20 22 23 24 25 26 27 28 30 32 34 36 38 40 41 45 49 53 56 60 64 68700 20 21 21 23 24 25 26 27 28 30 32 34 36 38 40 42 44 48 51 55 59 63 67 71750 21 22 23 24 25 26 27 28 29 31 33 35 38 40 42 44 46 50 54 58 62 66 71 75800 22 23 24 25 26 27 28 30 31 33 35 37 39 41 44 46 48 52 57 61 65 70 74 78

Width200 225 250 275 300 325 350 375 400 450 500 550 600 650 700 750 800 900 1000 1100 1200 1300 1400 1500

Heig

ht

200 12 13 14 14 15 15 16 16 17 18 19 20 21 23 24 25 26 28 31 33 35 37 40 42225 13 14 14 15 15 16 17 17 18 19 20 21 22 24 25 26 27 30 32 34 37 39 41 44250 14 14 15 15 16 17 17 18 18 20 21 22 23 25 26 27 28 31 33 36 38 41 43 46275 14 15 15 16 17 17 18 19 19 21 22 23 24 26 27 28 29 32 35 37 40 42 45 47300 15 15 16 17 17 18 19 19 20 21 23 24 25 27 28 29 31 33 36 39 41 44 47 49325 15 16 17 17 18 19 19 20 21 22 23 25 26 28 29 30 32 35 37 40 43 46 48 51350 16 16 17 18 19 19 20 21 21 23 24 26 27 29 30 32 33 36 39 42 44 47 50 53375 16 17 18 19 19 20 21 21 22 24 25 27 28 30 31 33 34 37 40 43 46 49 52 55400 17 17 18 19 20 21 21 22 23 25 26 28 29 31 32 34 35 38 41 44 48 51 54 57450 18 19 19 21 22 22 23 24 25 27 28 30 31 33 35 36 38 41 44 48 51 54 57 61500 19 20 21 22 23 24 25 25 26 28 30 32 33 35 37 38 40 44 47 51 54 58 61 64550 20 21 22 23 24 25 26 27 28 30 32 33 35 37 39 41 43 46 50 53 57 61 64 68600 21 22 23 25 26 26 27 28 29 31 33 35 37 39 41 43 45 49 53 56 60 64 68 72650 22 23 24 26 27 28 29 30 31 33 35 37 39 41 43 45 47 51 55 59 63 67 71 76700 23 24 25 27 28 29 30 31 32 35 37 39 41 43 45 47 49 54 58 62 66 71 75 79750 25 26 27 28 29 31 32 33 34 36 38 41 43 45 47 49 52 56 61 65 70 74 78 83800 26 27 28 30 31 32 33 34 35 38 40 42 45 47 49 52 54 59 63 68 73 77 82 87

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Fire damper BKA-EN
Clear cross-section (m2)
Width200 225 250 275 300 325 350 375 400 450 500 550 600 650 700 750 800 900 1000 1100 1200 1300 1400 1500

Heig

ht

200 0.029 0.033 0.036 0.040 0.044 0.047 0.051 0.054 0.058 0.065 0.073 0.080 0.087 0.094 0.102 0.109 0.116 0.131 0.145 0.160 0.174 0.189 0.203 0.218

225 0.034 0.038 0.043 0.047 0.051 0.055 0.060 0.064 0.068 0.077 0.085 0.094 0.102 0.111 0.119 0.128 0.136 0.153 0.170 0.187 0.204 0.221 0.238 0.255

250 0.039 0.044 0.049 0.054 0.059 0.063 0.068 0.073 0.078 0.088 0.098 0.107 0.117 0.127 0.137 0.146 0.156 0.176 0.195 0.215 0.234 0.254 0.273 0.293

275 0.044 0.050 0.055 0.061 0.066 0.072 0.077 0.083 0.088 0.099 0.110 0.121 0.132 0.143 0.154 0.165 0.176 0.198 0.220 0.242 0.264 0.286 0.308 0.330

300 0.049 0.055 0.061 0.067 0.074 0.080 0.086 0.092 0.098 0.110 0.123 0.135 0.147 0.159 0.172 0.184 0.196 0.221 0.245 0.270 0.294 0.319 0.343 0.368

325 0.054 0.061 0.068 0.074 0.081 0.088 0.095 0.101 0.108 0.122 0.135 0.149 0.162 0.176 0.189 0.203 0.216 0.243 0.270 0.297 0.324 0.351 0.378 0.405

350 0.059 0.066 0.074 0.081 0.089 0.096 0.103 0.111 0.118 0.133 0.148 0.162 0.177 0.192 0.207 0.221 0.236 0.266 0.295 0.325 0.354 0.384 0.413 0.443

375 0.064 0.072 0.080 0.088 0.096 0.104 0.112 0.120 0.128 0.144 0.160 0.176 0.192 0.208 0.224 0.240 0.256 0.288 0.320 0.352 0.384 0.416 0.448 0.480

400 0.069 0.078 0.086 0.095 0.104 0.112 0.121 0.129 0.138 0.155 0.173 0.190 0.207 0.224 0.242 0.259 0.276 0.311 0.345 0.380 0.414 0.449 0.483 0.518

450 0.079 0.089 0.099 0.109 0.119 0.128 0.138 0.148 0.158 0.178 0.198 0.217 0.237 0.257 0.277 0.296 0.316 0.356 0.395 0.435 0.474 0.514 0.553 0.593

500 0.089 0.100 0.111 0.122 0.134 0.145 0.156 0.167 0.178 0.200 0.223 0.245 0.267 0.289 0.312 0.334 0.356 0.401 0.445 0.490 0.534 0.579 0.623 0.668

550 0.099 0.111 0.124 0.136 0.149 0.161 0.173 0.186 0.198 0.223 0.248 0.272 0.297 0.322 0.347 0.371 0.396 0.446 0.495 0.545 0.594 0.644 0.693 0.743

600 0.109 0.123 0.136 0.150 0.164 0.177 0.191 0.204 0.218 0.245 0.273 0.300 0.327 0.354 0.382 0.409 0.436 0.491 0.545 0.600 0.654 0.709 0.763 0.818

650 0.119 0.134 0.149 0.164 0.179 0.193 0.208 0.223 0.238 0.268 0.298 0.327 0.357 0.387 0.417 0.446 0.476 0.536 0.595 0.655 0.714 0.774 0.833 0.893

700 0.129 0.145 0.161 0.177 0.194 0.210 0.226 0.242 0.258 0.290 0.323 0.355 0.387 0.419 0.452 0.484 0.516 0.581 0.645 0.710 0.774 0.839 0.903 0.968

750 0.139 0.156 0.174 0.191 0.209 0.226 0.243 0.261 0.278 0.313 0.348 0.382 0.417 0.452 0.487 0.521 0.556 0.626 0.695 0.765 0.834 0.904 0.973 1.043

800 0.149 0.168 0.186 0.205 0.224 0.242 0.261 0.279 0.298 0.335 0.373 0.410 0.447 0.484 0.522 0.559 0.596 0.671 0.745 0.820 0.894 0.969 1.043 1.118

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Fire damper BKA-EN
Accessoriesavailable at extra cost:
Limit switch type ESElectric limit switch for position indicators"OPEN" and/or"CLOSED".. Switching element including one NC and one NOcontact each, 4 connections for M3.5 screw terminals for max.2mm². 250 V AC, Ie 6A, IP65 -using suitable screwed cableglands M20 (on-site)- Connection to LON networks possible via SCHAKO LON-K-OR module. For a technical description and documents, see catalog Air, subregister 09.c.

Damper positions that can be dis-

played:Limit switch type ES 1(2) Z(A) EX : limit switch for application in areas subject to explosion hazards

II 2 G/D EEx d IIC T6/T5 IP65 T 80 °C/ 95 °C≤ 250 V, Ie 6 A~ (0.24 A-), with 2 m cable harness.

Hall limit switch type HESFor a technical description and documents, see catalog Air, sub-register 09.c.

Electric spring return actuator types ELD-BLF/ELD-I-B(BLF24-T SO, BLF230-T SO, BF24-T SO, BFG24-T SO, BF230-T SO, BFG230-T-SO)Electric spring return actuator with thermoelectric release devic-es BAE-72B-S.

Electric spring return actuator ELD-24-TL(BF24TL-T-ST, BFG24TL-T-ST)Electric spring return actuator with thermoelectric trigger deviceBAE-72 TL

Technical data and connection diagrams avaialble upon request.

- Design in stainless steel material no. 1.4301 (V2A) or 1.4571 (V4A)

- Protective coating DD paint, PU-based, interior/exterior- Thermal trigger with fusible link 98°C- Limit switch type ES, Hall limit switch type HES- Electric spring return actuator ELD-BLF, ELD-I-B,

ELD-24-TL, trigger temperatures 72°/95°C- Pneumatic swivel drives type PND, 6 bar- Smoke alarm system type RMS-L withAbZ No. Z-78.6-58- Communicative Signaling and Switching Bus System Model

KOMES- Interlinking grate type ASG 1.)

- Extension part type VT 1.)

- Assembly part type EBT 1.)

-for installation of the smoke alarm type RMS-L- - Connecting pipe type RS 1.)

- Flexible connection piece type FS: PVC, sheet steel connect-ing piece 2.)

1.) Standard design galvanized sheet steel, material No. 1.4301 or1.4571, powder coating (RAL 9010) and DD coating possible.

2.) Standard design galvanized sheet steel, material No. 1.4301 or1.4571 possible.

Type ES 1 Z : "CLOSED" Type ES 1 A : "OPEN"

Type ES 2 : "OPEN" and"CLOSED"

ES circuit diagram

Circuit diagram ES 1(2) Z(A) EX

- Trigger temperatures 72°/95°C- Operating position (damper "OPEN") and tensioning of the

return spring by applying the supply voltage (230V AC, 24VAC/DC)

- Safety position (damper "CLOSED") through spring energywhen supply voltage is interrupted or the temperature fusesTf1 (ambient temperature) or Tf2/Tf3 (duct inside tempera-ture) respond. A response of the temperature fuses Tf1, Tf2/Tf3 will interrupt the supply voltage permanently and irre-trievably.

- Damper end positions are displayed by integrated mi-croswitches

- Manual actuation and arresting in any position is possible inthe no-current state. It can be unlocked manually or by ap-plying the supply voltage.Attention: safety function is only guaranteed if the drive has been connected to the supply voltage in accordance with regulations.

- On-site function control is possible by means of the controlkey of the BAE-72 B-S

- Spare parts: temperature fuse Tf2/Tf3 with baseplate (ZBAE72 or ZBAE 95), for an y other damage, the entire "Drive ther-mal trigger device" unit must be replaced.

- Connection to LON networks possible via SCHAKO LON-K-OR module. For a technical description and documents, seecatalog Air, subregister 09.c.

- Trigger temperature 72° / 95° C- Supply voltage: 24 V AC/DC- Connection to LON or Belimo MP bus systems via commu-

nication and power supply unit BKN230-24LON or BKN230-24MP possible

- Damper height ≤ 400 mm, drive BF24TL-T-ST- Damper height > 400 mm, drive BF24TL-T-ST

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Fire damper BKA-EN
ELD-BLF 24 (BLF24-T SO)Available to width <797mm and height <400mm
ELD-BLF 230 (BLF230-T SO)Available to width <797mm and height <400mm

Rated voltage: 24 V AC - 50/60 Hz24 V DC

Functional range: 19.2...28.8 V AC21.6...28.8 V DC

Response temperature of the temperature fuses Tf1: Duct external temperature 72 °C

Tf2+Tf3: duct internal temperature 72 °C (Art. No. ZBAE 72)Tf2+Tf3: duct internal temperature 95 °C (Art. No. ZBAE 95)

Power consumption:- running 5 W- holding 2,5 WDimensioning: 7 VA (Imax 5.8 A @ 5 ms)Protection class: III Safety extra low voltageProtective system: IP 54Auxiliary switch: 2 x EPU 3 (0.5) A, 250 V AC ,

Silver contacts, gold-plated- Switching points 5°, 80°Connection:- Motor Cable 1 m, 2 x 0.75 mm², halogen-free

...-ST with 3-pin connector- Auxiliary switch Cable 1 m, 6 x 0.75 mm², halogen-free

...-ST with 6-pin connector(BLF24-T-ST with connectors, to fit BKN230-24)

Angle of rotation: 95° (including 5° spring pre-tension)Damper drive: Positive locking 12mm (8/10mm with

added adapter)Torque: Motor and spring return min. 4 NmRunning time: - Motor 40...75 s (0...4 Nm)

- Spring return ≈ 20 s @ -20...+50 °C / max. 60 s @ -30 °C

Direction of rotation: selectable via L / R mountingPosition indicator mechanically by pointerSurrounding temperature:Standard operation: -30... +50 °C-Safety incident Reaching the safety position is guaran-

teed up to max. 75 °C Storage temperature: -40... +50 °CHumidity test: according to EN 60730-1EMC: CE according to 89 / 336 / EECLow voltage directive: CE according to 73 / 23 / EECSound power level: Motor max. 45 dB(A); spring ≈ 62 dB(A)Service life: min. 60.000 safety positionsMaintenance: maintenance freeWeight: 1630 g

Rated voltage: 230 V AC - 50/60 HzFunctional range: 198...264 V ACResponse temperature of the temperature fuses Tf1: Duct external temperature 72 °C


Power consumption:- running 5 W- holding 3 WDimensioning: 7 VA (Imax 150 mA @ 10 ms)Protection class: II protective insulationProtective system: IP 54Auxiliary switch: 2 x EPU 3 (0.5) A, 250 V AC ,

Silver contacts, gold-plated- Switching points 5°, 80°Connection:- Motor Cable 1 m, 2 x 0.75 mm², halogen-free- Auxiliary switch Cable 1 m, 6 x 0.75 mm², halogen-freeAngle of rotation: 95° (including 5° spring pre-tension)Damper drive: Positive locking 12mm (8/10mm with

added adapter)Torque: Motor and spring return min. 4 NmRunning time: - Motor 40...75 s (0...4 Nm)

- Spring return ≈ 20 s @ -20...+50 °C / max. 60 s @ -30 °C

Direction of rotation: selectable via L / R mountingPosition indicator mechanically by pointerSurrounding temperature:Standard operation: -30... +50 °C-Safety incident Reaching the safety position is guaran-

teed up to max. 75 °C Storage temperature: -40... +50 °CHumidity test: according to EN 60730-1EMC: CE according to 89 / 336 / EECLow voltage directive: CE according to 73 / 23 / EECSound power level: Motor max. 45 dB(A); spring ≈ 62 dB(A)Service life: min. 60.000 safety positionsMaintenance: maintenance freeWeight: 1730 g

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Fire damper BKA-EN
ELD-I-B 24 (BF24-T SO, BFG24-T SO) ELD-I-B 230 (BF230-T SO, BFG230-T-SO)
Rated voltage: 24 V AC - 50 / 60 Hz24 V DC

Functional range: 19.2....28.8 V AC21.6....28.8 V DC

Response temperature of the temperature fuses Tf1: Duct external temperature 72 °C


Power consumption:- running 7 W- holding 2 WDimensioning: 10 VA (Imax 8,3 A @ 5ms)Protection class: III Safety extra low voltageProtective system: IP 54Auxiliary switch: 2 x EPU 6 (3) A, 250 V AC ,

Silver contacts, gold-plated- Switching points 5°, 80° (BF24-T)

5°, 175° (BFG24-T)Connection:- Motor Cable 1 m, 2 x 0.75 mm², halogen-free- Auxiliary switch Cable 1 m, 6 x 0.75 mm², halogen-free

(BF24-T-ST, BFG24-T-ST includingconnectors, to fit BKN230-24)

Angle of rotation:- BF24-T 95° (including 5° spring pre-tension)- BFG24-T 180°Damper drive: Positive locking BF24-T 12mm (10mm

adapter), BFG24-T 10mmTorque: - Motor min. 18 Nm, spring return

min. 12 Nm (BF24-T)- Motor min. 11 Nm, spring return

min. 8.5 Nm (BFG24-T)Running time: - Motor 140 s,

- Federrücklauf ≈ 16 s (tamb = 20°C)(BF24-T)

- Spring return ≈ 20 s (tamb = 20°C) (BFG24-T)

Direction of rotation: selectable via L / R mountingPosition indicator mechanically by pointerSurrounding temperature:Standard operation: -30... +50 °C-Safety incident Reaching the safety position

is guaranteed up to 75°C max.Storage temperature: -40... +50 °CHumidity test: according to EN 60730-1EMC: CE according to 89 / 336 / EECLow voltage directive: CE according to 73 / 23 / EECSound power level: Motor max. 45 dB(A); spring ≈ 62 dB(A)Service life: min. 50,000 safety positionsMaintenance: maintenance freeWeight: 2800 g

Rated voltage: 230 V AC 50 / 60 HzFunctional range: 198....264 V ACResponse temperature of the temperature fuses Tf1: Duct external temperature 72 °C


Power consumption:- running 8 W- holding 3 WDimensioning: 12,5 VA (Imax 500mA @ 5 ms)Protection class: II protective insulationProtective system: IP 54Auxiliary switch: 2 x EPU 6 (3) A, 250 V AC ,

Silver contacts, gold-plated- Switching points 5°, 80° (BF230-T)

5°, 175° (BFG230-T)Connection:- Motor Cable 1 m, 2 x 0.75 mm², halogen-free- Auxiliary switch Cable 1 m, 6 x 0.75 mm², halogen-freeAngle of rotation:- BF-230-T 95° (including 5° spring pre-tension)- BFG-230-T 180°Damper drive: Positive locking BF230-T 12mm (10mm

adapter), BFG230-T 10mmTorque: - Motor min. 18 Nm, spring return

min. 12 Nm (BF230-T)- Motor min. 11 Nm, spring return

min. 8.5 Nm (BF230-T)Running time: - Motor 140 s,

- Spring return ≈ 16 s (tamb = 20°C) (BF230-T)

- Spring return ≈ 20 s (tamb = 20°C) (BFG230-T)

Direction of rotation: selectable via L / R mountingPosition indicator mechanically by pointerSurrounding temperature:Standard operation: -30... +50 °C-Safety incident Reaching the safety position

is guaranteed up to 75°C max.Storage temperature: -40... +50 °CHumidity test: according to EN 60730-1EMC: CE according to 89 / 336 / EECLow voltage directive: CE according to 73 / 23 / EECSound power level: Motor max. 45 dB(A); spring ≈ 62 dB(A)Service life: min. 50,000 safety positionsMaintenance: maintenance freeWeight: 3100 g

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Fire damper BKA-EN
Connection diagramELD-BLF
ELD-I-B

Connection via safety trans-former BLF24-T-ST: Plug-in version for

connection to the communicationand power supply unit BKN230-24.

BLF24-T, BLF24-T(-ST), BLF230-T

Parallel connection of further drives ispossible. Observe specificationsBAE72B-S

BF24-T(-ST), BF230-T

24 V connectionvia safetytransformer

BF230-T: To disconnect from power, a devicemust be available which separates the terminal(min. 3 mm contact opening).

BF24-T-ST: Plug-in version for connection to thecommunication and power supply unit BKN230-24.

BAE72B-S

<5° <80°

Parallel connection of further drives is possible. Observe specifications

BFG24-T(-ST), BFG230-T

24 V connectionvia safetytransformer

BFG230-T: To disconnect from power, a devicemust be available which separates the terminal(min. 3 mm contact opening).

BFG24-T-ST: Plug-in version for connection tothe communication and power supply unitBKN230-24.

BAE72B-S

<5° <175°

Parallel connection of further drives is possible. Observe specifications

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06.12.2006Version:

Fire damper BKA-EN
Pneumatic swivel drives type PND, 6 bar(Closed-circuit principle)Remote controlled opening and closing by pneumatic swiveldrive (continuous pressure). Complete regulation mechanismfor easy fitting with 4 screws. If the fusible link is intact, thelocking damper can be closed and opened as desired by on-sitecompressed air supply. Mounting a solenoid valve (accesso-ries) allows the locking damper to be opened while power is ac-tive and to be closed by interrupting power, thus allowingswitches, smoke trigger devices, etc., installed on-site to beconnected. The locking damper can be kept open under com-pressed air and power. It can be closed via thermal release(72°C) or by removing the pressure.Thermal functional readiness through 72°C thermal switch.
AttentionAir consumption at 6 bar max. 2 Nl/h (as delivered), max. 10 Nl/h (after 50 cycles). (Supply line must be dimensioned sufficient-ly large). Valves mounted on-site must be dimensioned in ac-cordance with their distance from the pneumatic unlocking andrelease device.

It is connected on-site via a commercially available G 1/8" con-necting nipple

For transport reasons and to avoid possible damage during fit-ting, the complete regulation mechanism can be delivered sep-arately (if desired). The space required for retrofitting must betaken into account. Fitting is easy as the complete regulationmechanism is assembled on a mounting plate (if required withwiring).

Circuit diagram

Mounting example:Pneumatic swivel drive type PND (H ≤ 400)

with micro limit switch (accessories)

Pneumatic swivel drive type PND (H > 400)with IP66 limit switch (accessories)

Accessories (at extra cost):):

Mounting order:

Thermal pneumatic triggeringThe thermal release will break the fusible link, and the attacheddirectional valve will interrupt the compressed air supply to thecylinder and close the damper blade. Opening velocity can beset. After thermal release is complete, the locking damper can-not be opened by means of the actuating cylinder, before replac-ing the fusible link.

Electro-pneumatic releaseThe electro-pneumatic release will interrupt the power supply ofthe solenoid valve. If the fusible link is not broken, the lockingdamper will open again as soon as the power supply of the so-lenoid valve has been restored.

1

2

3

5

1

2

3

4

5

Standard model Standard model additionally with solenoid valve(Accessories, at extra cost)

1 Single-acting pneumatic cylinder operating pressure 6 bar2 Pneumatic throttle valve3 Pneumatic thermal switch with fusible link 72°

3/2-way valve, G1/8 connection4 Electro-pneumatic 3/2-way valve, G1/8 connection5 Feed pressure 6 bar

- Solenoid valve, optionally in EX design- "OPEN/CLOSED" micro limit switch for function display- IP 66 "OPEN/CLOSED" limit switch, optionally in EX design- Fitting of a pressure controller for monitoring the com-

pressed air- Wiring of all fitted electrical parts

- Insert seal- Connect mounting plate with 4 nuts on stud bolt- Connect air supply.- Connect accessories, if availaible, according to circuit dia-

gram (limit switch, solenoid valve)- Perform a functional test.

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Fire damper BKA-EN
Smoke alarm system type RMS-LFor a technical description and documents, see catalog Air, sub-register 09.e.
Communicative Signaling and Switching Bus Sys-tem Model KOMESFor a technical description and documents, see catalog Air, sub-register 09.c.

Extension part type VT

Interlocking grate type ASG

Assembly part type EBT

Connecting pipe type RS

- Extension piee made of profiled sheet steel fitted with con-necting flanges

- Intended use: for large wall/ceiling thickness, in order tomaintain a minimum distance amin = 50 mm from the opendamper blade when fitting interlocking grates type ASG, flex-ible connecting pieces type FS or connecting pipes type RS

- Wire or punch grid with a mesh width of ≤ 20 mm- Intended used: to be fitted for one-sided connection- Minimum distance amin = 50 mm from open damper blade

must be taken into account, if ncessary, use extension parttype VT

- Assembly part made of profiled sheet steel fitted with con-necting flanges and mounting opening for SCHAKO smokealarm system RMS-L.

- Intended use: for installation of the SCHAKO smoke alarmsystem type RMS-L-

- Round connecting pipe fitted with joining plate- Intended use: connection/transition of fire damper to round

lines- Other dimensions on request

B x H øD200x200 198250x250 248325x325 313375x375 353400x400 398450x450 448500x500 498600x600 558650x650 628750x750 708800x800 798

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06.12.2006Version:

Fire damper BKA-EN
Flexible connection piece type FS
- Flexible connection piece consisting of profiled connectionflanges with elastic intermediate piece made of polyesterfabric PVC-coated on both sides, construction material classB2 to DIN 4102, with welded lip seals (sealing degree to24194/VDI 3803/EN1886 B; temperature-resistant from -20°to 80°C). Flexible part of the connecting piece (polyester fab-ric) must have a length lmin of 100 mm when mounted.

- The required equipotential bonding must be carried out on-site according to the VDE regulations. The fire dampers mustnot be subjected to mechanical stress under any circum-stances.

- Intended use: to prevent built-in fire dampers or space-en-closing components from being subjected to inadmissible forces even in case of fire. The local regulations regarding ventilation systems apply. In addition, flexible connection pieces must be mounted in the following mounting situa-tions:Both sides:

- into walls according to DIN 1053 when dwall <100 mm

- into lightweight walls with metal stand assem-blies

- for "flange to flange" with mortar lining in partOne side: - outside/away from wallsFlexible ventilation ducts made of steel or aluminum can beused instead of the flexible connection pieces.

Equipotential bonding

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Fire damper BKA-EN
Text for invitation to tenderFire dampers of fire resistance classification K90 to DIN 4102-6, tested in accordance with European harmonized standard DINEN 1366-2, for locking fire lobbies in ventilation and air condi-tioning systems.Housing made of galvanized sheet steel - 2-part- without cir-cumferential stop sheet profiles for maximum cross-sections,thermal partitioning made of fire protection panels, 2 oppositeinspection openings. Damper blade made of abrasion-resistant,glass-fiber-reinforced lightweight concrete with circumferentialhose and intumescent seals to meet the cold and hot leakage re-quirements according to DIN EN 1366-2.Any accessories that may be required for the mounting situationat hand (flexible connection pieces, suspensions, pole braces,etc.) are listed in separate positions of the delivery list.For connection to non-flammable ducts, the air flow directiondoes not matterThe connection of smoke detector devices is possible with ageneral building supervisory approval.
Installation:

Product: SCHAKO type BKA-ENGeneral building supervisory approval No.: Z-41.3-667

Dimensions::

Alternative designs or accessories("Select as desired")

- with horizontal or vertical damper blade axis- into massive walls and ceilings, into lightweight walls with

metal stands according to DIN 4102-4 Tab.48- outside/away from walls- flange to flange

Width (B) : .................... mmHeight (H): .................... mmLength (L): 375/500 mmOperatingside:

right / left(If not stated otherwise, the operating side"right", length 500 mm and release temperature72° will be delivered)

- Design in stainless steel material no. 1.4301 (V2A)- Design in stainless steel material no. 1.4571 (V4A)- Housing with anticorrosive paint

- DD coating inside (two-component paint, PU-based)- DD coating outside (two-component paint, PU-based)

- Thermal trigger with mechanical fusible link release temper-ature 98°C

- Electric limit switch for "OPEN" and/or "CLOSED".position in-dicators, switching element containing one NC and one NOcontact.:- Type ES 1 Z: "CLOSED"- Type ES 1 A: "OPEN"- Type ES 2: "OPEN" and "CLOSED"

- Limit switch for "OPEN" and "CLOSED" position indicators,application in areas subject to explosion hazards- Type ES Ex 1 Z: "CLOSED"- Type ES Ex 1 A: "OPEN"- Type ES Ex 2: "OPEN" and "CLOSED"

- HALL limit switch type HES, "OPEN", "CLOSED" and interme-diate position indicators for connection to SCHAKO signal-ing and bus switching system KOMES

- Electric spring return actuator with thermo-electric releasedevice BAE-72(95)B-S - release temperature 72°C (95°C) -and integrated micro switches for indicating the damper endpositions.- Type ELD-BLF (230V AC, 24V AC/DC), with damper

height = 400 mm- Type ELD-IB (230V AC, 24V AC/DC), with damper height

> 400 mm- Electric spring return actuator with thermo-electric release

device BAE-72TL - release temperrature 72°C (95°C) and in-tegrated micro switch for indicating the damper positions,connection to LON or Belimo MP bus systems possible viacommunication devices- Type ELD-24-TL (24V AC/DC)- Communication device BKN230-24LON for connecting to

LON bus system- Communication device BKN230-24MP for connecting to

Belimo-MP bus system- Pneumatic swivel drive type PND 6 bar

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Fire damper BKA-EN
Extension part type VT, for installation with large wall/ceilingthicknesses, to maintain the minimum distance amin of 50 mmfrom the open damper blade when fitting interlocking grate typeASG, flexible connection piece type FS or connection pipe typeRS. Extension part made of profiled galvanized sheet steel fittedwith connection flanges, l= 160 mm.Product: SCHAKO type VT
Dimensions::

Flexible connection piece type FS, consisting of profiled con-nection flanges - galvanized sheet steel - with elastic intermedi-ate piece made of polyester fabric PVC-coated on both sides,construction material class B2 to DIN 4102, with welded lipseals (sealing degree to 24194/VDI 3803/EN1886 B; tempera-ture-resistant from -20° to 80°C). Flexible part of the connect-ing piece (polyester fabric) must have a length lmin of 100 mmwhen mounted. The required equipotential bonding must be carried out on-siteaccording to the VDE regulations. The fire dampers must not besubjected to mechanical stress under any circumstances.Product: SCHAKO type FS

Dimensions::

Interlocking grate type ASG, for connection with ventilationduct connection on only one side, galvanized sheet steel, meshwidth = 20 mm, minimum distance amin = 50 mm from the opendamper blade must be taken into account, if necessary, use ex-tension part type VT.Product: SCHAKO type ASG

Dimensions::

Connecting pipe type RS, for connecting round ventilationducts to BKA-EN, consisting of joining plate with bores and con-necting pipe, galvanized sheet steel.Product: SCHAKO type RS

Dimensions (B;H according to damper size):

Assembly part type EBT, to be built into the SCHAKO smokealarm system RMS-L, assembly part made of profiled galva-nized sheet steel fitted with connection flanges and installationopening to fit SCHAKO smoke alarm system RMS-L, l= 180 mm.Product: SCHAKO type EBT

Dimensions::

Width (B) : .................... mmHeight (H): .................... mm

- Extra cost for anticorrosive paint - inside -- Two-component paint, PU-based

- Extra cost for powder coating in RAL 9010- Extra cost for model:

- Material No. 1.4301 (V2A)- Material No. 1.4571 (V4A)


- Extra cost for model with connection flanges:- Material No. 1.4301 (V2A)- Material No. 1.4571 (V4A)


- Extra cost for anticorrosive paint- Two-component paint, PU-based



Width (B) : .................... mmHeight (H): .................... mmConnecting pipe ø (øD): .................... mm








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Documents

Fire damper - matsakis.gr · Fire damper BKA-EN with spring return actuator can be used for cold gas purge (tduct < 72°C and tsurroundings < 50°C). Opening/actuating the BKA-EN