Hydraulic system installation technician
Ed. 04/2007
23
AIR DIAPHRAGM
FLUE DIAPHRAGM
PRESSURE DROP ADMISSIBLE (PA)
MODEL
HEIGHT (MM)
CODE
HEIGHT (MM)
CODE
MAXIMUM
MINIMUM
M20 C
-----
-----
60
019
40
-----
84 007 ----- -----
35
23
M30 C
84 007 55 013 25
-----
----- ----- ----- -----
69
45
----- ----- 45 012 46
22
M60 C
----- ----- 55 013 21
-----
Table 5
– Pressure drop admissible according to the model and diaphragm fitted
AIR DIAPHRAGM
FLUE DIAPHRAGM
PRESSURE DROP, FLUE
PIPE (Pa/m)
PRESSURE DROP, AIR
PIPE (Pa/m)
MODEL
H (mm)
CODE
H (mm)
CODE
Ø 110
Ø 130
Ø 110
Ø 130
M20
C
-----
----- 60 019 0.46 0.20 0.17 0.07
84
007
----- ----- 1.21 0.53 0.45 0.20
M30 C
84
007 55 013 1.11 0.49 0.41 0.18
-----
-----
----- ----- 4.82 2.12 1.49 0.66
-----
----- 45 012 5,49 2.42 1.73 0.76
M60 C
-----
----- 55 013 5,16 2.27 1.66 0.73
N.R. = DIAMETER NOT RECOMMENDED
Table 6
– Pressure drop, air pipes and flue pipes
For each 90° elbow calculate an increase in overall length of 1.5 metres.
For each “T” element calculate an increase in overall length of 2.0 metres.
For each 45° elbow calculate an increase in overall length of 0.75 metres.
AIR
DIAPHRAGM
FLUE
DIAPHRAGM
PRESSURE DROP, COAXIAL
DUCT Ø 100
FOR M20 C & M30 C (Pa)*
PRESSURE DROP, COAXIAL
DUCT Ø 130 FOR ALL MODELS
(Pa)*
MODEL
H
(mm)
CODE
H
(mm)
CODE
WALL OUTLET
(O-SCR000)
WALL
OUTLET
(O-SCR001)
ROOF OUTLET
(O-SCR002)
M20 C
-----
-----
60
019
5.8
2.0
2.2
84 007 ----- -----
18.0
5.0
5.6
M30 C
84 007 55 013
18.0
5.0
5.6
----- ----- ----- -----
N.R.
29.5
33.1
----- ----- 45 012
N.R.
29.5
33.1
M60 C
----- ----- 55 013
N.R.
N.R.
N.R.
N.R.= DIAMETER NOT RECOMMENDED
* PRESSURE DROPS TO BE CALCULATED INCLUDING CONNECTORS
Table 7
– Pressure drop, coaxial ducts