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Rookgasafvoer
Cerapur – 6 720 807 248 (2013/05)
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4.3 Lengten rookgasafvoerbuis
4.3.1 Toegestane lengten rookgasafvoerbuis
In bochten is het drukverlies groter dan in rechte buis. Daarom wordt
daar een equivalente lengte aan toegekend, die groter is dan de fysische
lengte.
Daarom mogen de rookgasafvoerbuizen niet langer zijn dan een bepaal-
de lengte, om een veilige afvoer naar de atmosfeer te waarborgen. Deze
lengte is de maximale, equivalente buislengte L
equiv,max
. Deze is afhan-
kelijk van de cv-ketel, het rookgasafvoersysteem en de rookgasafvoer.
Bovendien mag de lengte van het horizontale deel van de rookgasafvoer
L
w
een bepaalde waarde L
w, max
niet overschrijden.
L
equiv,max
Maximale equivalente totale buislengte
L
s
Verticale buislengte
L
w
Horizontale buislengte
L
w,max
Maximale horizontale buislengte
Uitvoering conform
CEN
Afbeeldin-
gen
Type
Diameter van de
rookgastoebehoren
Schachtdoorsnede L
equiv, max
L
w, max
L
equiv
1)
1) Met de 90 °-bochten op de ketel en steunbochten in de schacht is al in de maximale lengte rekening gehouden.
L
equiv
Schacht
B
23
8, 9
ZSB 14-4C ... 80 mm 25 m 3 m 2 m 1 m
ZSB 24-4C ...
ZWB 30-4C ...
80 mm 32 m 3 m 2 m 1 m
B
33
10, 11
ZSB 14-4C ... 80 mm 25 m 3 m 2 m 1 m
ZSB 24-4C ...
ZWB 30-4C ...
80 mm 32 m 3 m 2 m 1 m
C
33
12
ZSB 14-4C ... 80/125 mm 4/10 m
2)
2) Verhoging van het minimaal vermogen naar 5,8 kW
3 m 2 m 1 m
ZSB 24-4C ...
ZWB 30-4C ...
80/125 mm 15 m 3 m 2 m 1 m
C
53
13
ZSB 14-4C ...
Naar schacht:
80/125 mm
In schacht: 80 mm
16 m 3 m 2 m 1 m
ZSB 24-4C ...
ZWB 30-4C ...
Naar schacht:
80/125 mm
In schacht: 80 mm
28 m 3 m 2 m 1 m
C
93
14, 15
ZSB 14-4C ...
Naar schacht:
80/125 mm
In schacht: 80 mm
Allen
15 m 3 m 2 m 1 m
ZSB 24-4C ...
ZWB 30-4C ...
Naar schacht:
80/125 mm
In schacht: 80 mm
120×120 mm 17 m 3 m 2 m 1 m
130×130 mm
23 m 3 m 2 m 1 m
140×140 mm
24 m 3 m 2 m 1 m
140 mm
22 m 3 m 2 m 1 m
150 mm
24 m 3 m 2 m 1 m
Verticaal/
horizontaal
C
13
, C
33
16, 17
ZSB 14-4C ...
60/100 mm
4/10
2)
m
10 m
2 m 1 m
80/125 mm 4/10
2)
m 2 m 1 m
ZSB 24-4C ...
ZWB 30-4C ...
60/100 mm 6 m 6 m 2 m 1 m
80/125 mm 17 m 13 m 2 m 1 m
Gevel C
53
18
ZSB 14-4C ... 80/125 mm 22 m 3 m 2 m 1 m
ZSB 24-4C ...
ZWB 30-4C ...
80/125 mm 25 m 3 m 2 m 1 m
Collectieve
rookgasaf-
voer
C
43
19, 20
ZSB 14-4C ...
ZSB 24-4C ...
ZWB 30-4C ...
Naar schacht:
80/125 mm
In schacht: 100 mm
140×200 mm
Lengtespecificaties voor collectieve rookgas-
afvoer vindt u in hoofdstuk 4.3.4.
190 mm
Tabel 14 Overzicht van de lengten van de rookgasafvoer afhankelijk van de rookgasafvoer
90°
15-
45
°
15


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