UK
32
PRESSURE CURVES/GAS DELIVERY
M
Bsic gas train
These curves show the gas pressure, in millibars, (at points Pi and Pt along the gas train)
necessary to produce a given delivery in m
3
/h. The pressures have been measured with the
burner working and with a pressure of 0 mbar in the combustion chamber. If the chamber
is pressurized, the gas pressure necessary will be that given in the diagram plus that in the
combustion chamber.
Legend
1
Interception cock - airtight at 1 bar and pressure loss ≤ 0,5 mbar.
2
Vibration-damping joint.
3
Gas pressure point for pressure reading.
4
Gas filter.
5
Gas pressure regulator.
6
Minimum gas pressure control device (pressure switch).
7
Class A solenoid safety valve. Closure time Tc ≤ 1”.
8
Class A solenoid safety valve. Closure time Tc ≤ 1”. Ignition power between 10% and 40% of rated
thermal power.
9
Gas delivery regulator, normally incorporated in either solenoid valve 7 or 8.
10
Combustion head.
11
Minimum air pressure control device (pressure switch).
Legend
Pi
Inlet pressure (combustion head + gas train)
Pt
Pressure at combustion head
Pressure loss (mbar)
Thermal output
Содержание EM 35-E
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