fd march 2003 - fire security technical

FIRE DAMPERS

FDSERIES

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M A N U F A C T U R E R S O F A I R / F I R E / S M O K E C O N T R O L P R O D U C T S

Product Specifications and Features

1


IntroductionThe FD Series Steel Curtain Fire Damper is designedto stop the spread of fire through ducts, walls, floorsand ceilings.

The product range has many features and options tomeet the requirements of specifiers, contractors, localand national authorities. There are five casing variantswith infinite sizing capability within minimum/maximumdimensions. Dampers are available to suit low/mediumand high velocity applications.

FeaturesQ Low/medium and high velocity models

Q Galvanised or stainless steel blades and casings

Q Factory fitted HEVAC approved installation frame, or, other approved methods as shown on pages 5, 6 and 7

Q Fully welded construction

Q Infinite sizing capability

Q Comprehensive control options

Q Comprehensive status options

Q Tested for a duration of four hoursSpecifications and TestingQ Fire tested to:

• European standard EN 1366 - 2:1999

• International Standard ISO 10294 - 1:1996(E)

• Horizontal Test Report for 4 hour durationTE 201814

• Vertical Test Report for 4 hour durationTE 201633

and

Q Fire tested to BS 476 part 20:1987 for four hour duration

• Warrington Report WFRC C43264(stainless steel blades)

• Warrington Report WFRC C43265(galvanised blades)

Q 28 day salt corrosion test

• Chatfield Reports C7217 and C7218 refer

Q Conformance to DW144 and Eurovent 2/2 as relevant

BladesThe roll-formed interlocked steel curtain section isavailable in either cold reduced hot dipped galvanisedmild steel or stainless steel.

Formed within the full length of the blade are dualswages which provide additional strength and rigidity toform a high integrity interlocking blade.

Product Specifications

2


CasingFormed to provide twocontinuous internalflanges not less than25.4mm (1”).

Casing and componentsnot less than 1.5mm(16swg) thick coldreduced hot dippedgalvanised mild steel toBS EN 10142 1991.Coating Class FE P02bZ275 NA as standard.

Optional to order arecasings to Grade 430 orGrade 316 stainlesssteel to BS 1449 Part 21983 S172.

ClosureSpringsDampers are suppliedwith two constant forcecoil springs exerting a pullof not less than 35N, withone end fixed to theleading blade by rivetsand the coil fitted into thespindle of the lockingramp. The spring ismanufactured from Grade302 stainless steel to BS5770, 4 hard.

Fusible LinkBlades are held in the open position by a straightbar link (fitted as standard)rated at 72°C (162°F) with a formed reinforcing swage and two locationholes.

• The fusing alloy is to BS 219. The brass is to BS 2870 and is electro-tinned and soldered following this process.

• BSB can supply the FDSeries Fire Damper with the alternative rated fusible link for higher temperature applications as follows: 95°C (202°F), 124°C (260°F), 145°C (286°F), 182°C(360°F).

The Fusible Link Bracket is manufactured from Grade 430 stainless steel as standard to:BS 1449 Part 2 1983 S172.

Gate LatchReleaseOptional mechanism forelectrical release whenrequired. Rated 72°C(162°F), alternative ratingsavailable as per standardstraight bar link.

PaintAll welds, seams andjoints are sprayed withcommercial grade zincbased paint.

SealantWhere applicable, sealantconforms to DW144.

Pull RingClosing blades can be fitted with pull ring tofacilitate resetting thedamper from the non-access side.

Locking RampsDual locking rampsensure positive closingaction of the blade packin horizontral or verticalinstallations.

Control OptionsA range of direct acting orremote control releaseoptions are available tooperate in conjunction withthe gate latch release.

MicroswitchesAll BSB FD Fire Dampersare available with factoryfitted single or double polemicroswitches as optionalextras. (See page 9)

BladesFormed to provide a continu-ous interlocking hingeextending the full length withdual swages providing max-imum strength and rigidity.Not less than 0.7mm (22swg)thick cold reduced hot dippedgalvanised mild steel to BSEN 10142 1991. CoatingClass FE P02b Z275 NA asstandard. Optional to order areBlades to Grade 430 orGrade 316 stainless steelto BS 1449 Part 2 1983S172B.

Dimensions

Type A Square/Rectangular Spigot Blades partially in Airstream

Type B Square/Rectangular Spigot Blades out of Airstream

Type I Square/Rectangular Case “Induct” Blades partially in Airstream

40 30 3085 40 Duct Width –5mm100 - 1200

30

30

Duc

t Hei

ght –

5mm

100

- 10

00

40

30

303085 40 Duct Width –5mm100 - 1200

Duc

t030 55 75 95

85

20 20

Duc

t Hei

ght –

5mm

150

- 10

00

Duct Width –5mm150 - 1200

3


HEVAC Installation Frame detail


30 30Free Area

Fre

e A

rea

30

30

Duct Width –5mm100 - 1200

60 60

60

60

Duc

t Hei

ght –

5mm

100

- 10

00

Duc

t Hei

ght –

5mm

100

- 1

000

100

- 30

030

1 -

500

501

- 75

075

1 -

1000

60

6060 Duct Width –5mm100 - 1200

Duc

t060 85 10

512

5

Duc

t Hei

ght –

5mm

100

- 1

000

100

- 30

030

1 -

500

501

- 75

075

1 -

1000

Standard barfusible link shown

Blade pack clear of airstream onheights of 300mm or below

4


Installation Frame Corner Brackets

* Dimensions marked thus indicate overalldimensions including HEVAC installation frame “crimple” on corner brackets.

109*

85

89

Dimensions

Type C Circular Spigot Blades out of Airstream

40

30

303085 40 Duct Width –3mm100 - 1000

Duc

t Hei

ght –

3mm

10

0 -

1000

100

- 30

030

1 -

500

501

- 75

075

1 -

1000

Duc

t030 55 75 95

Type O Flat Oval Spigot Blades out of Airstream

40

30

303085 40 Duct Width –5mm100 - 1200

Duc

t030 55 75 95

Notes: 1. All dimensions are in mm 2. Spigoted Models are supplied with actual spigot dimensions nominal less 5mm + 1mm (3mm + 1mm for type C)3. For sizes greater than detailed maximum sizes, multiple section units would be supplied

HEVAC/HVCA Installation Frame



The installation frame is factory fitted around the Fire Damper to allowexpansion without either distorting or exerting severe stresses within thesurrounding structure within which the assembly is installed.The frame is formed with a “Z” section using galvanised mild steel 1.6mm(16swg) to BS EN 10142 1991. Coating Class FE P02b Z275 NA.Corner brackets manufactured from 1.5mm galvanised mild steel are fixed tothe “Z” section by four 5mm (3/16”) diameter aluminium rivets.A number of fixing tie tabs are positioned equally along each side of theframe, (as indicated below) for positive fixing into the surrounding builder’swork to maintain structural integrity.

Duct Dimension (mm) No. of equally spaced fixing points per sideUp to 508 1 Minimum

509 to 1016 2 Minimum1017 to 1524 3 Minimum

60

6060 Duct Width –3mm100 - 1000

Duc

t Hei

ght –

3mm

10

0 -

1000

100

- 30

030

1 -

500

501

- 75

075

1 -

1000

Duc

t060 85 10

512

5

60

6060 Duct Width –5mm100 - 1200

Duc

t060 85 10

512

5

Duc

t Hei

ght –

5mm

100

- 1

000

100

- 30

030

1 -

500

501

- 75

075

1 -

1000

Duc

t Hei

ght –

5mm

100

- 1

000

100

- 30

030

1 -

500

501

- 75

075

1 -

1000

5


Installation

HEVAC/HVCA FramesThe HEVAC/HVCA approved factory fitted InstallationFrame is designed to allow expansion of the damperunder fire conditions, without affecting its integrity or theconstruction it is installed within.

One Piece Corner BracketThe one piece pressed corner bracket is rivetted (usingaluminium rivets) to the ‘‘Z’’ Section which makes theframe. This bracket allows the frame to expand underfire conditions without affecting the integrity of theconstruction it is installed within.

Fixing Tie TabsFor securing the assembly into the builders workstructure as specified by the specifying/authorisingauthority.

Expansion CornersThese pressed corners are fitted into each corner topermit expansion of the fire damper within theconstruction of the frame.

The frame should be installed centrally within thethickness of the surrounding wall or floor. Or, in the caseof thick walls or floors, the centre line of the frame shouldbe at least 50mm away from the nearest face.Where more than one duct penetrates a wall or floor,adjacent fire damper assemblies should be separated bybuilder’s work of a minimum thickness of 225mm. Duringinstallation, all fixing tabs should be bent out and builtinto the surrounding structure so as to ensure ‘‘positivefixing into the surrounding builder’s work’’.The illustrated detail on this page is BSB’s interpretationof the HEVAC/HVCA Installation Frame specification. Foradditional details, contact our sales office.

Special Note:All fire damper installations should be carried out to thesatisfaction of the appropriate district surveyor, fire officerand/or specifying authority as other approved methods ofinstallation may well be used.

50mm

225mm

Installation Codes of Practice

FD Series Fire Dampers are designed for application innormal dry filtered air systems. If exposed to fresh airintakes and/or inclement conditions the damper shouldbe subject to a planned inspection programme.

Installations involving corrosive and/or aggressive hostileenvironmental conditions (e.g. swimming pools) mayinvalidate our warranty and should be referred to ourSales Office.

Installation Parameters

Installation

6


Special Note: All fire damper installations should be carried out to the satisfaction of the appropriate district surveyor, fire officer and/or specifying authority as other approved methods of installation may well be used.

In Fire/Smoke Curtain Special Note: The methods detailed in these illustrations are proposed methods only. Acceptance must besought from the specifying authority prior to ordering or installation. These options must be factory fitted priorto despatch.

1.5mm thick anglewelded to this sideof casing

50mm x 50mm x 3mmAngle Lugs, tackwelded onto dampercasing for drop rods

Airflow

Fire Curtain

1.5mmthick plate thisside

Duct Width + approx 200mm

Duc

t H

eigh

t +

app

rox

200m

m

60mm min.50mm min.

In Brick/Block Wall

High strength mortar, concretebackfill or assessed alternative

Frame positioned centrally (or the centre to be at least 50mmaway from nearest wall face)

Frame fixing lug built into mortar joints/wall onall four sides. Approximately 50mm deep

Installation

7


Dry Line Partition Walls

External sleeve around FireDamper for Low Velocity Ductconnection

External sleeve fitted ontothe Fire Damper for HighVelocity Duct connection

Loose Angle Frame for site fixing onto theSleeve, on both sides of the partition wallAngle Frames are to be bolted onto

the sleeve by the installer.

Duct wallconstruction

It is recommendedthat slotted holesare inserted forlinear expansionwithin this “L”formed frame

60mm

60mm

75mm

75mm

Sleeve and Angle Method

HEVACFrame withDry LinerPlate

AngleFrameMethod

Special Note: The methods detailed in these illustrations are proposed methods only. Acceptance mustbe sought from the specifying authority prior to ordering or installation. These options must be factoryfitted prior to despatch.


8


Installation

Induct/Sleeve Applications

Angle flanges fitted as a “frame” either side of thedamper, inside the duct. The Angle Flanges arefixed to the duct - not to the damper.

DUCT

25mm min betweentop/bottom of FireDamper case andend of Lug

In Wall - “Z” Frame

25mm min.

Fire rated steel anchors at maximum of 400ctrs,minimum of 2 fixings per side.

Non-combustible fire stopping material betweendamper wall and “Z”section: eg. mineral wool with a density greater than80kg/m3.

Minimum clearance 3mm per 300mm width andheight of duct to cater for expansion.

50mm min.

1.5mm “Z” section mild steel framesupplied by damper manufacturer

Finished with intumescent beadfor gaps up to 15mm, or, 1.5mmthick Angle Frame for gapsgreater than 15mm.

Expansion gaparound Damper

DamperCase

Special Note: The methods detailed in these illustrations are proposed methods only. Acceptance must be soughtfrom the specifying authority prior to ordering or installation. These options must be factory fitted prior to despatch.


90mm

9


Installation

Special Note: The methods detailed in these illustrations are proposed methods only.Acceptance must be sought from the specifying authority prior to ordering orinstallation. These options must be factory fitted prior to despatch.


Drop Rod Drop Rod

50mm x 50mm x 3mmLugs tack welded to Damper Casing to accept Drop Rods with 12mm dia. hole.

Fitted with Lugs for Drop Rod Support

Testing and Resetting

BSB Curtain Fire Dampers will need to be testedand reset through an access panel sited in theadjacent ductwork. It is important to note that thedamper should be fitted with the marked “AccessSide” downstream, i.e. on the opposite side to thatof the incoming air-flow.

The damper blades are spring assisted and willclose instantly once the fusible link has beenremoved. We do not recommend that our firedampers be closed while the fan is still operatingas this will stress the ductwork, fan and damper.

Where there is a rise in temperature and during afire situation, the fusible link will part in the centre,releasing the blade pack via the release bracket

Testing and Resetting

situated centrally in the width of the case. Whendrop testing during routine maintenance, thisaction should be replicated to avoid misfiring. Theblade pack must never be supported to one sideonly when releasing or resetting the blade pack.

Comprehensive testing and resetting information isavailable via our Sales Office.

Blade Control Options

Mechanical Visual IndicatorTo provide local indication of the blade status.

When the indicator appears in the bulb, this shows thatthe blades have closed.

Single Pole MicroswitchTo provide remote indication of theblade status. As the leading bladetravels to the locking ramp, itcontacts the arm and operates theswitch. Factory Fitted.

The Single Pole Microswitch issupplied as a dependent snapaction contact 1NO + 1NC.

For indication of damper closed,terminals 13 and 14 should be used. Degree of protection: IP66.

Double Pole MicroswitchOperates as abovebut with two switchesfor double poleoperation. Can alsoprovide a signal to acontrol panelenabling isolation ofplant in case of fire.Factory fittedPole 1 and Pole 2

13 21

14 22

11 13

12 14

21 23

22 241 4 2

13 21

14 22

11 13

12 14

21 23

22 241 4 2

Economy Sealed MicroswitchTo provide remote indicationof the blade status.

As the leading blade travelsover the locking ramp, thelever is depressed andoperates the switch.

Factory Fitted.

Degree of protection: Casing and Outlet IP67

Connection details:Common (1) Black leadNormally open (4) Blue leadNormally closed (2) Brown lead

10


13 21

14 22

11 13

12 14

21 23

22 241 4 2

11


Control Options

Solenoid (De-energised) 240 volt

The BSB Solenoid option is designed for use with‘normally de-energised’ systems and releases whena240VAC detector signal is applied.The solenoid is supplied with the release mechanismhoused in a remote casing and comes complete with a1m length of Bowden cable as standard. For thepurposes of remote test firing the damper, a manualrelease version of the cable operator is available.Note: this option is only suitable for dampers greaterthan 150mm in height and fitted with the gate latchrelease mechanism.A 24 volt option is available.

Available for sizes from 150 x 150mm to 1200 x 1000mm and 150 x 1000mmdiameter.

Electro-Magnet (Energised) 24 volt

The BSB Electro Magnet option is designed for usewith ‘normally energised’ systems and releases uponinterruption of the power supply.The electro magnet is supplied with the releasemechanism housed in a remote casing and comescomplete with a 1m length of Bowden cable asstandard. For the purposes of remote test firing thedamper, a manual release version of the cable operatoris available.Note: this option is only suitable for dampers greaterthan 150mm in height and fitted with the gate latchrelease mechanism.A 240 volt option is available.

Available for sizes from 150 x 150mm to 1200 x 1000mm and 150 x 1000mmdiameter.

E L N

Neon Indicator

Solenoid

Microswitch

N/C

N/O

Solenoid 240V Release WiringInstructionsRed neon indicates damperreleased

240V AC single phase 50 HzSurge (100 m/s max.) 5 ampsRunning current 0.5 amps

E + –

Filament Lamp

Electromagnet

Microswitch

N/C

N/O

Electromagnet 24V ReleaseWiring InstructionsGreen lamp indicates damperreleased

24V DC continuously rated at 2 wattsCurrent - 200 milliamps max.5 amp rating

Control Options

Fusible Link Release

Straight Bar Fusible Link (Standard)

The standard fusible link will be supplied and rated at72°C unless otherwise specified.

Gate Latch Link OptionProviding a trigger operation feature, this self-locating andeasily resettable cassette can be used with either thesolenoid or electro-magnet controls - or, as a standardcomponent to assist the engineer in the resetting of thefire damper during regular inspection and maintenanceprocedures.

Only available from 150 to 1000mm (high).

Installation Diagram

These illustrations show the electro-magnet control boxmounted on the outside of the duct, with a BowdenCable being fed through the duct to the trigger releasemechanism ensuring that the curves of the cable areminimal.

Grommetfitted to ductwall

Grommetfitted to ductwall

12


Minimum cableradius is 100mm

BSB Ltd.

Performance Characteristics and Weight Chart

Weight Chart (kg) Models A and B

FORCIRCULARAND FLATOVALMODELS ADD25% TOTHESEVALUES

For modelswithHEVAC/HVCAinstallationframes, add afurther 25%.These valueshave beenrounded towholenumbers andare illustratedfor estimationpurposes only.

Pressure Drop Graphs

Damper Damper Width (mm)Height (mm) 100 200 300 400 500 600 700 800 900 1000

100 2.0 3.0 4.0 5.0 6.5 7.0 8.0 9.0 9.5 10.0200 3.0 3.5 4.0 5.0 7.0 8.0 9.0 10.0 11.0 12.0300 3.5 4.0 4.5 5.5 7.0 9.0 9.5 10.5 12.0 13.0400 4.0 5.0 5.5 6.0 7.5 10.0 11.0 12.0 13.0 14.0500 5.0 6.0 7.0 7.5 8.5 11.0 12.0 13.0 15.0 16.0600 6.0 7.0 8.0 8.0 9.5 12.0 13.0 14.0 16.0 17.0700 7.0 8.0 9.0 9.5 10.5 13.0 14.0 15.0 17.0 18.0800 8.0 9.0 10.0 10.0 12.0 14.0 15.0 16.0 18.0 19.0900 9.0 10.0 11.5 12.0 14.0 15.0 15.5 17.0 18.0 20.01000 10.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 20.0 22.0

100

80

60

40

50

20

10

8

6

5

4

3

2

1

30

Pre

ssur

e D

rop

(Pa)

Duct Velocity (m/s)1 2 3 4 5 6 7 8 10 20

Minimum free area = 91% Velocity range 0 to 12.5 m/s

100

200

80

60

40

20

10

8

6

5

4

3

2

1

30

Pre

ssur

e D

rop

(Pa)

Duct Velocity (m/s)1 2 3 4 5 6 8 10 20 30 40 60 80100

Maximum unrestricted airflow Velocity range 0 to 30m/s

Type A/I Type B/C/O15

0mm

x 1

50m

m10

00m

m x

100

0mm

150m

m x

150

mm

1000

mm

x 1

000m

m

13


Performance Characteristics

British Standard 476,Time Temperature Curve

Tem

pera

ture

(°C

)

Time (minutes)

Fire Test

14


When Fire Dampers are required to beinstalled in apertures with dimensions greaterthan the maximum single unit size, multipleassemblies can be supplied.

HorizontalAssemblies

Multiple Assemblies

Dampers are either welded together as amultiple construction or alternatively suppliedloose with 1.5mm galvanised steel ‘‘U’’shaped joining channels formed 60mm x 40mm.

These would normally be supplied undrilledfor on-site installation by others.

When multiple units are ordered with HEVAC/HVCA approvedinstallation frames, these would be supplied fully assembledwith the installation frame fitted

VerticalAssemblies

Special Note:Before installation, proposed multiple arrangements should beagreed with the appropriate district surveyor, fire officerand/or specifying authority.

1200

1100

1000

900

800

700

600

500

400

300

200

100

050 100 150 200 250

FD Fire Damper

Model:A Low/Medium VelocityB High VelocityI in-Duct - Low/Medium VelocityC Circular - High VelocityO Flat Oval - High Velocity

Blade Material:G Galvanised Mild Steel Roll-formed BladesS Stainless Steel Roll-formed Blades (state grade)

Installation Frames:F Fitted with HEVAC/HVCA Installation Frame

Control Options:SL Solenoid (state voltage)EM Electro-Magnet (state voltage)VI Visual IndicatorMS Micro-Switch Fitted (state single or double pole)

Ordering CodesExample:

FD A G - F VI

ControlOptions

Installation Frame

Blade Material

Model

Fire Damper

BSB Engineering Services Ltd. reserves the right to modify or withdraw any specification without prior notice that may result from continuous product development. The information contained within this brochure is correct at the time of going to press.

BSB Engineering LimitedUnit E, Tribune Drive, Trinity Trading Estate,

Sittingbourne, Kent ME10 2PDTel: +44 (0)1795 422609. Fax: +44 (0)1795 429543

Email: [email protected]

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BSBFD. Dec. 2005

Designed and produced by JK Enterprise 07989 562375

BSB Product Range

FSD SeriesFire/Smoke Damper

HD SeriesHeavy Duty Control Damper

FD SeriesFire Damper

SB SeriesSingle Blade Regulating Damper

DD SeriesDuct Damper

BD SeriesBackdraught Damper

EF SeriesEasifitDamper

IF SeriesIntumescentFire Damper

SF SeriesSlimfitRegulating Damper

SC SeriesSmoke Control Damper

Control PanelElectro-Mechanical

Control PanelFullyAddressable

fd march 2003 - fire security technical

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