TYPE
A
B
5 GAS
452
210
8 GAS
485
230
JM 12
483/633*
230
JM 18
525/675*
275
JM 18/2L
675
275
* "Long draught tube" version
** "CE" version
mbar
7
6
5
4
3
2
5 GAS
1
WORKING RANGE: PRESSURE AT COMBUSTION CHAMBER/FUEL FLOW-RATE
The curves shown in the above diagram have been obtained by carrying out combustion tests in
compliance with the national and international standards in force.
Maximum delivery flow-rate of the working burner is a function of the back-pressure at the boiler
combustion chamber.
C
D
E
F
265
320
132
212
265
345
140
232
285
358
125/275*
232
340
400
125/275*
274
340
400
275
274
PRESSURISATION DIAGRAM
9 GAS
3
6
Ø G
H
L
N
80
85 ÷ 140
85
160
89
90 ÷ 140
95
160
114
110 ÷ 150
120
180
114
110 ÷ 150
120
180
114
110 ÷ 150
120
180
JM 18/2L
JM 18
JM 12
9
12
15
5
FIG. 2
Q
S
T
U
445
90
90
260
1/2" GAS
465
90
120
260
1/2" GAS
525
90
120
330
1" GAS
575
110
170
355
1" GAS
700
110
170
240
1" GAS
nm
/h
3
18
FIG. 3
X