C.I.B. UNIGAS - M039175CD
9
Performance Curves
To get the input in kcal/h, multiply value in kW by 860.
Data are referred to standard conditions: atmospheric pressure at 1013mbar, ambient temperature at 15°C.
NOTE:
The performance curve is a diagram that represents the burner performance in the type approval phase or in the laboratory
tests, but does not represent the regulation range of the machine. On this diagram the maximum output point is usually reached by adj-
suting the combustion head to its “MAX” position (see paragraph “Adjusting the combustion head”); the minimum output point is rea-
ched setting the combustion head to its “MIN” position. During the first ignition, the combustion head is set in order to find a
compromise between the burner output and the generator specifications, that is why the minimum output may be different from the Per-
formance curve minimum.
Pressure in the Network / gas flow rate curves
PRESSURE IN
COMBUSTION CHAMBER
(mba
r)
RX90
kW
RX91
kW
GAS PRESS
U
R
E (mbar)
RX90
Stm
3
/h
RX91
Stm
3
/h
Caution: the gas rate value is quoted on the x-axis, the related network pressure is quoted on the y-axis (pressure value in
the combustion chamber is not included). To know the minimum pressure at the gas train inlet, necessary to get the reque-
sted gas rate, add the pressure value in the combustion chamber to the value read on the y-axis.
0
2
4
6
8
10
12
200
600
1000
1400
1800
0
2
4
6
8
10
12
400
800
1200
1600
2000
0
10
20
30
40
50
20
40
60
80
100
120
140
160
180
R p 2" (50)
D N 65
D N 100
D N 80
0
20
40
60
80
100
50
100
150
200
250
Rp 2" (50)
DN65
DN80
DN100
