G O M - 영 문
60
y
These flue systems may be oriented in all the possible directions: front, back, right
and left hand.
y
They may also include some special components, like the single bends, in order to
reach some particular position.
y
If it is necessary to insert some bends, please consider that each of them has a
resistance corresponding to the following linear lenght :
Equivalent resistance - Reduction of length
CHOICE OF THE DIAPHRAGM
90
°
Cod. A03.011.000122
2.2m
Bend 80mm
45°
Cod. A03.011.000131
1.4m
y
Then, for example, if it
’
s necessary to insert N°
2 90°
bends in the flue system
type C53, the total length that the flue system may reach is not 23.90m but not
more than 19.50mm.
y
If some bend is included in the flue system, the total length for the evaluation of the
correct diaphragm has to be calculated adding the reduction of length showed in
the above schemes.
y
For example ; if the boiler is a KDB 161GOM combined with a flue system type C83
installed with a combination of 3.0m of separate tubes plus two 90°
bends, the
total equivalent length is 7.4m.
y
Then the correct diaphragm is is not 41mm but 48mm.
Calculation of the maximum length with the single bends
included in the flue system
Choice of the correct diaphragme with the bends
included in the flue