90
EN
C43/63
NC
Fig. 21
C53
NC
Fig. 22
C83
NC
Fig. 23
5.11.1 Maximum duct lengths
The table shows the maximum permitted lengths for the smoke
outlet and combustion air inlet ducts, expressed in metres.
ALU HE
Maximum permitted length (m)
Inlet
Øi 80 mm
Outlet
Øi 160 mm
Inlet
Øi 100 mm
Outlet
Øi 200 mm
80
10
25
-
-
116
9
25
-
-
160
8
25
-
-
200
-
-
10
25
240
-
-
9
25
280
-
-
8
25
Load loss - Equivalent lengths
ALU HE
Leq (linear metres)
Inlet
Outlet
45° Ø 80
mm curve
90° Ø 80
mm curve
45° Ø 160
mm curve
90° Ø 160
mm curve
80
0,5
1
0,5
1
116
0,75
1,5
0,75
1,5
160
1
2
1
2
ALU HE
Leq (linear metres)
Inlet
Outlet
45° Ø 100
mm curve
90° Ø 100
mm curve
45° Ø 200
mm curve
90° Ø 200
mm curve
200
0,5
1
0,5
1
240
0,75
1,5
0,75
1,5
280
1
2
1
2
Inlet optional accessories
Description
ALU HE
80
-
116
-
160
Diameter Ø 80 mm
90° curve M-F (6 pieces)
8077410
90° curve M-F (with take-
off point)
8077407
90° curve M-F (insulated)
8077408
Extension W. 1000 mm (6
pieces)
8077309
Extension W. 1000 mm
(insulated)
8077306
Extension W. 500 mm (6
pieces)
8077308
Internal and external ring
nut kit
8091500
Inlet terminal
8089500
45° curve M-F (6 pieces)
8077411
Outlet optional accessories
Description
ALU HE
80
-
116
-
160
ALU HE
200
-
240
-
280
Diameter Ø 160
mm
Diameter Ø 200
mm
Extension Ø 160 mm L.
1000 mm
8102523
-
Extension Ø 160 mm L.
500mm
8102522
-
90° elbow Ø 160 mm
8102521
-
45° elbow Ø 160 mm
8102520
-
Extension Ø 200 mm L.
1000 mm
-
8102525
90° elbow Ø 200 mm
-
8102526
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