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PART I: SPECIFICATIONS
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 adjsuting the combustion head to its
"MAX" position (see paragraph "Adjusting the combustion head"); the minimum output point is reached 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 Performance curve minimum
Pressure in the Network / gas flow rate curves
G258A M-
G380A M-
ATTENTION: 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 requested gas rate, add the pressure value in the combustion chamber to the value read on
the y-axis.
The values in the diagrams refer to natural gas with a calorific value of 8125 kcal/Stm
3
0.714 kg/Stm
.
The values in the diagrams refer to GPL with a calorific value of 22300 kcal/Stm
3
Stm
. When the calorific value and the density change, the pressure values should be adjusted accordingly.
Performance Curves
G335A M-
3
Stm
/h
G400A M-
3
Stm
/h
Natural gas pressure shown in diagram
Where:
Real gas pressure
Natural gas flow rate shown in diagram
Real gas flow rate
Natural gas density shown in diagram
Real gas density
10
3
(15°C, 1013 mbar) and a density of
3
(15°C, 1013 mbar) and a density of 2.14 kg/
3
Stm
/h
3
Stm
/h
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