kad's non-coated fire rated duct · the duct has been subjected to the condition indicated...

All copyrights reserved. KAD Airconditioning reserves the right to make changes without prior notice.

FIRE RATED DUCTWORK PROVIDING 2 HRS. FIRE RESISTANCE WHEN TESTED TO BS 476 PART 24 : 1987

KAD'S NON-COATED FIRE RATED DUCT

Manufactured, Developed and Tested by KAD Airconditioning.

Majority of deaths in fire situation are caused by smoke inhalation. Fire resisting ductwork system can be responsible for not allowing the initial spread of fire between the compartments and restricting the rapid spread of smoke.

KAD's Non-coated Fire Rated Duct is specially designed fire rated ductwork system without coating.

KAD's Non-coated Fire Rated Ductwork System is approved for,■ Mechanical Ventilation System ■ Car Park Extraction System■ Smoke Extraction System ■ Kitchen Extraction System■ Dual Ventilation / Smoke Extraction System ■ Pressurization Duct

FEATURES:■ Steel ducts are manufactured as per KAD’s construction schedule.■ Ducts are non-coated and needs to be installed as per KAD’s installation instruction. ■ KAD's Non-coated Ductwork System is tested and certified as per BS 476 part 24:1987 for two hour stability and integrity for type A & type B. It is also tested as per EN 1368-1:1 2012 for 2 Hrs. stability & integrity.■ Easy to install and economical.

TEST RESULT STANDARD AND CRITERIA:The duct has been subjected to the condition indicated into the BS 476 part 24:1987, Method of determination of fire resistance of ventilation ducts, in order to verify the performance criteria stated in this standard for horizontal and vertical ducts.

STABILITY: (Chapter 9.2.1 of BS 476 Part 24:1987)KNFRD system when subjected to the stability test according to BS 476 Part 24:1987 standard, did not collapse in such a manner that duct no longer fulfill its intended function for 2 Hrs. KAD’s Non-coated Fire Rated Ductwork System fulfils the stability criteria for 2 Hrs.

All copyrights reserved. KAD Airconditioning reserves the right to make changes without prior notice.01

KAD'S NON-COATED FIRE RATED DUCT - NFRD

Type A Type B

All copyrights reserved. KAD Airconditioning reserves the right to make changes without prior notice. 02

DUCT SCHEDULE FOR RECTANGULAR

DUCT SCHEDULE FOR CIRCULAR

Longest

side (mm)

Thickness

(mm)

Standard

Straight

Length

(mm)

Hanger

Spacing

(m)

Stiffener Cross JointClamp

(mm)Bearer

Drop

Rod

(mm)Intermediate Internal Type / Rating

0 - 400 1.2 1220 1.2 - 0 SOF 20 x 20 x 0.7 150 RSA 40 x 40 x 4 10

401 - 600 1.2 1220 1.2 - 0 SOF 30 x 30 x 0.8 150 RSA 40 x 40 x 5 10

601 - 800 1.2 1220 1.2 - 0 SOF 30 x 30 x 0.8 150 RSA 50 x 50 x 5 10

801 - 1000 1.2 1220 1.2 - 0 SOF 30 x 30 x 0.8 150 RSA 60 x 60 x 6 10

1001 - 1600 1.2 1220 1.2 - 0 SOF 30 x 30 x 0.8 150 C-Channel 76 x 38 12

1601 - 2000 1.2 1220 1.2 RSA 40 x 40 x 4 0 SOF 40 x 40 x 1.2 150 C-Channel 102 x 51 14

2001 - 3000 1.2 1220 1.2 RSA 50 x 50 x 5 0 SOF 40 x 40 x 1.2 150 C-Channel 152 x 89 16

)

Diameter

(mm

0 - 100

101 - 200

201 - 400

401 - 630

631 - 800

801 - 1000

1001 - 1250

1.

Thickness

(mm)

2

1.2

1.2

1.2

1.2

1.2

1.2

Standard

Straight

Length

(mm)

1220

1220

1220

1220

1220

1220

1220

Hanger

Spacing

(mm)

1.0

1.0

1.0

1.0

1.0

1.0

1.0

Cross Joint

(mm)

SF 20 x 25 x 1.2

SF 20 x 25 x 1.2

SF 20 x 25 x 1.2

SF 30 x 35 x 1.2

SF 30 x 35 x 1.2

SF 40 x 45 x 1.2

SF 40 x 45 x 1.2

Joining

150

150

150

150

150

150

150

Bearer (mm)

Ø100 x 1.25 x 50 2PIECES

Ø200 x 1.5 x 50 2PIECES

Ø400 x 2.0 x 50 2PIECES

Ø630 x 2.0 x 50 2PIECES

Ø800 x 3.0 x 50 2PIECES

Ø1000 x 3.0 x 50 2PIECES

Ø1250 x 3.0 x 50 2PIECES

Drop Rod

(mm)

10

10

12

14

14

16

16

Galvanized Iron (GI), Mild Steel (MS) & Stainless Steel (SS) horizontal & vertical ducts.

Galvanized Iron (GI), Mild Steel (MS) & Stainless Steel (SS) horizontal & vertical ducts.


INTEGRITY: (Chapter 9.2.1 of BS 476 Part 24:1987)

KAD’s Non-coated Fire Rated Ductwork System when subjected to

integrity test according to BS 476 Part 24:1987, for 2 Hrs., it did not

showed any presence or formation of crack, holes or any other opening

outside the furnace, through which fumes or hot gasses can pass. Also

there is no ignition of cotton pads or appearance of any sustained flaming

(10 Sec) on the unexposed surface of the duct.

KAD’s Non-coated Fire Rated Ductwork System fulfils the integrity criteria for 2 Hrs.

BS 476 Part 24


250.00

100x100x3 mm L-Angle

Rock Wool Insulation

25.00

25.00

4.8/16 mm G.I. Rivet6x32 mm Screw

Duct

150.00

Penetration Seal

Wall

Type A• Section in fire stopping is involved with a metal framework made of galvanized steel sheet as shown the picture. The gap

between duct and metal framework is filled with rock wool reference “Fujairah Loose Wool” of 50 mm in thickness and 100 kg/m3. It is fixed to duct by means of welding spots.

• Galvanized steel angles of 100 x 100 mm and 3 mm in thickness, attached to duct with 4.8 x 16 mm steel rivet 150 from each other, and to supporting construction by means of Ø 6 x 32 mm screws each 150 mm.

• Intumescent sealant reference “Intufire® Acrylic” by DeltA for sealing any gap or joint between duct and supporting construction.

Type B• The gap between the duct and supporting construction is filled with rock wool reference “ProRox SL 960” by rock wool of

50 mm in thickness and 100 kg/m3.• Section in fire stopping is involved with silicate boards reference “PROMATECT®-L500” by Promat 20 mm thick. The gap

between duct and silicate board is filled with rock wool reference “ProRox SL 960” by rock wool of 50 mm in thickness and 100 kg/m3, compressed to fit in the gaps.

• Galvanized steel angles of 75 x 75 mm in dimensions and 3 mm in thickness, attached to silicate boards by M8 x 20 mm self-drilling screws 150 mm from each other, and to supporting construction by means of M10 x 50 mm screws each 130 mm. Angle frame is bolted in corners by means of M10 bolts and nuts.

100.00

100.00

100.00 1100.00

250.00

Insulation 250.00

150.00

350.001000.00

1000.00

150.00

150.00

DUCT

Concretelintel

250.00

150.00

FIR

E

Duct

Lintel Rawl bolts

4

7

8

4

All edges sealedwith fire cement(typical both faces)

7

8

7

Wall

7

6

25.00

20 mm Self drilling screw

Rawl Bolts

20 mmSelfdrillingscrew

Type A Type B


PENETRATION SEAL CONSTRUCTION DETAIL:


VERTICAL DUCT INSTALLATION:

Support - Vertical ducts must be supported at each floor level so that the weight of the duct is taken by

the floor. This must not compromise the penetration seal. If the distance between the floors is greater

than 5 m then intermediate supports must be fitted, e.g. cantilever bracket from adjacent fire rated wall.

Also, to prevent buckling of the duct, the distance between supports should not exceed 8 times the

smallest lateral dimension across the outside face of the duct.

The design of the penetration seal through a floor is the same as the design of the seal through walls

for horizontal ducts.

a)

b)

NON DRILL ANCHOR

5050

DUCT

MIN. 40 mm DEEP.

1000 mm

250

500

1100

Hanger & Support Details


HANGING AND SUPPORT:

Duct is directly supported on an auxiliary structure formed by “L” angle steel profile of 50 mm x 50 mm x 5 mm

thickness with M10 threaded rod. These threaded rod subject themselves directly to the slab. The largest

distance between suspension devise is 1250 mm. The lateral dimension between the outer vertical surface

of the duct and the center line of the suspension device is 50 mm.


1. Size range in width or height 401 to 600 mm.2. Length: 1220 mm maximum. 3. Sheet thickness 1.20 mm galvanized steel.4. Beading at a distance of 305 mm maximum.5. Aspect ratio of duct should be 1:4.6. Galvanized steel rivet 4.8 mm or spot weld at a distance of 150 mm.7. Transverse joint: Delta Slide on Flange 30 mm. 8. Stiffener: Not applicable. 9. G-clamp: 160 mm for the first two clamps closer to the corners & 150 mm for the rest.10. Sealant: Delta Fire Rated Sealant at longitudinal joint and at the corners. 11. Gasket: Delta Fire Rated Gasket at transverse joint. 12. Drop rod: 10 mm. 13. Bearer: “L” Angle 40 mm x 40 mm x 5 mm at a distance of 1.2 mtr from each other.

MODEL: KNFRD - 600

1. Size range in width or height 601 to 800 mm.2. Length: 1220 mm maximum. 3. Sheet thickness 1.20 mm galvanized steel.4. Beading at a distance of 305 mm maximum. 5. Aspect ratio of duct should be 1:4.6. Galvanized steel rivet 4.8 mm or spot weld at a distance of 150 mm.7. Transverse joint: Delta Slide on Flange 30 mm. 8. Stiffener: Not applicable.9. G-clamp: 160 mm for the first two clamps closer to the corners & 150 mm for the rest.10. Sealant: Delta Fire Rated Sealant at longitudinal joint and at the corners. 11. Gasket: Delta Fire Rated Gasket at transverse joint. 12. Drop rod: 10 mm. 13. Bearer: “L” Angle 50 mm x 50 mm x 5 mm at a distance of 1.2 mtr from each other.

MODEL: KNFRD - 800

KAD'S NON-COATED FIRE RATED DUCT - NFRDINSTALLATION INSTRUCTIONS

1. Size range in width or height 0 to 400 mm.2. Length: 1220 mm maximum. 3. Sheet thickness 1.20 mm galvanized steel.4. Beading at a distance of 305 mm maximum. 5. Aspect ratio of duct should be 1:4.6. Galvanized steel rivet 4.8 mm or spot weld at a distance of 150 mm.7. Transverse joint: Delta Slide on Flange 20 mm. 8. Stiffener: Not applicable. 9. G-clamp: 160 mm for the first two clamps closer to the corners & 150 mm for the rest.10. Sealant: Delta Fire Rated Sealant at longitudinal joint and at the corners. 11. Gasket: Delta Fire Rated Gasket at transverse joint. 12. Drop rod: 10 mm. 13. Bearer: “L” Angle 40 mm x 40 mm x 4 mm at a distance of 1.2 mtr from each other.

MODEL: KNFRD - 400

1. Size range in width or height 801 to 1000 mm.2. Length: 1220 mm maximum. 3. Sheet thickness 1.20 mm galvanized steel.4. Beading at a distance of 305 mm maximum. 5. Aspect ratio of duct should be 1:4.6. Galvanized steel rivet 4.8 mm or spot weld at a distance of 150 mm.7. Transverse joint: Delta Slide on Flange 30 mm. 8. Stiffener: Not applicable. 9. G-clamp: 160 mm for the first two clamps closer to the corners & 150 mm for the rest.10. Sealant: Delta Fire Rated Sealant at longitudinal joint and at the corners. 11. Gasket: Delta Fire Rated Gasket at transverse joint. 12. Drop rod: 10 mm. 13. Bearer: “L” Angle 60 mm x 60 mm x 6 mm at a distance of 1.2 mtr from each other.

MODEL: KNFRD - 1000


1. Size range in width or height 1001 to 1600 mm.2. Length: 1220 mm maximum. 3. Sheet thickness 1.20 mm galvanized steel.4. Beading at a distance of 305 mm maximum. 5. Aspect ratio of duct should be 1:4.6. Galvanized steel rivet 4.8 mm or spot weld at a distance of 150 mm.7. Transverse joint: Delta Slide on Flange 30 mm. 8. Stiffener: Not applicable. 9. G-camp: 160 mm for the first two clamps closer to the corners & 150 mm for the rest.10. Sealant: Delta Fire Rated Sealant at longitudinal joint and at the corners. 11. Gasket: Delta Fire Rated Gasket at transverse joint. 12. Drop rod: 12 mm. 13. Bearer: “C” Channel 76 mm x 38 mm x 76 mm - 4 mm thick at a distance of 1.2 mtr from each other.

MODEL: KNFRD - 1600

1. Size range in width or height 1601 to 2000 mm.2. Length: 1220 mm maximum. 3. Sheet thickness 1.20 mm galvanized steel.4. Beading at a distance of 305 mm maximum. 5. Aspect ratio of duct should be 1:4.6. Galvanized steel rivet 4.8 mm or spot weld at a distance of 150 mm.7. Transverse joint: Delta Slide on Flange 40 mm. 8. Stiffener: RSA 40 x 40 x 4 mm.9. G-clamp: 160 mm for the first two clamps closer to the corners & 150 mm for the rest.10. Sealant: Delta Fire Rated Sealant at longitudinal joint and at the corners. 11. Gasket: Delta Fire Rated Gasket at transverse joint. 12. Drop rod: 14 mm. 13. Bearer: “C” Channel 102 mm x 51 mm x 102 mm - 4 mm thick at a distance of 1.2 mtr from each other.

MODEL: KNFRD - 2000

1. Size range in width or height 2001 to 3000 mm.2. Length: 1220 mm maximum. 3. Sheet thickness 1.20 mm galvanized steel.4. Beading at a distance of 305 mm maximum. 5. Aspect ratio of duct should be 1:4.6. Galvanized steel rivet 4.8 mm or spot weld at a distance of 150 mm.7. Transverse joint: Delta Slide on Flange 40 mm. 8. Stiffener: RSA 50 x 50 x 5 mm9. G-clamp: 160 mm for the first two clamps closer to the corners & 150 mm for the rest.10. Sealant: Delta Fire Rated Sealant at longitudinal joint and at the corners. 11. Gasket: Delta Fire Rated Gasket at transverse joint. 12. Drop rod: 16 mm. 13. Bearer: “C” Channel 152 mm x 89 mm x 152 mm - 4 mm thick at a distance of 1.2 mtr from each other. 14. Tie rod 10 mm fitted at center of each duct PC on transverse joint.

MODEL: KNFRD - 3000

KAD'S NON-COATED FIRE RATED DUCT - NFRDINSTALLATION INSTRUCTIONS

KNFRD - 400, KNFRD - 600, KNFRD - 800, KNFRD - 1000, KNFRD - 1600, KNFRD - 2000, KNFRD - 3000

P.O. Box 5389, Dubai, UAE.

Tel: +971 4 806 7680 Fax: +971 4 806 7688

Email: [email protected]

Web: www.kadairconditioning.com

Ref

: KN

FRD

/201

8/R

0

All copyrights reserved. KAD Airconditioning reserves the right to make changes without prior notice.

kad's non-coated fire rated duct · the duct has been subjected to the condition indicated...

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