PRESSURE CURVES/GAS DELIVERY
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
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 pressu-
re 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 (pressu-
re switch)
/h. The pressures have been measured with the
3
Basic gas train
7 Class A solenoid safety valve. Closure time Tc
8 Class A solenoid safety valve. Closure time Tc
9 Gas delivery regulator, normally incorporated
10 Combustion head.
11 Minimum air pressure control device (pressure
Thermal output
Thermal output
31
≤ 1".
≤ 1". Ignition power between 10% and 40% of
rated thermal power.
in either solenoid valve 7 or 8.
switch)
Legend
Pi Inlet pressure (com-
Pt Pressure at
M
bustion head + gas
train)
combustion head
UK