Gas burner / nozzle mix / excess airmax. 1750 °C | XNM series

Nozzle Mix Burners are high flame, high capacity units. Gas and air
are mixed only at the point of discharge. The swirling air stream
produces a negative vortex at the block mouth. Fuel enters the
vortex mixing rapidly, producing intense combustion.
Nozzle Mix burners may work both with cold and pre-heated air
allowing for 25 to 30% saving. When cold air is entrained,
modulation of the main air valve, from a temperature controller
signal, changes the air pressure and the air flow to the burner. With
equal or proportional air and gas pressure drops across both orifices,
the flows will always maintain correct ratios.
In case of pre-heated air, modulation of the butterfly valve, located
upstream of the heat exchanger, from a temperature controller
signal, changes the air pressure and the air flow to the burner.
Flanged Orifice Plate meters at convenient point in the air and gas
supply lines to the burners measure flows. The air impulse to the
Balanced Zero Regulator will modulate the gas outlet pressure to
always equal the air pressure.

  Specification