DB

DB series, representing the evolution in Riello Burners industrial product portfolio, includes dual block burners for applications in big plants (district heating,
hospitals) as well as in food, chemicals, textile industry and matching with hot water boilers, steam and thermal oil generators.
DB series is available in 10 models with an output ranging from 150 kW to 20.000 kW; the burners are divided in homogeneous ranges according to the fuels used
and on the NOx emissions level: combustion heads for standard, low NOx or ultra low NOx emissions are available.
DB burners can operate with different types of fuel: gas, LPG, light oil, heavy oil (and related combinations); other fuels available on demand. Burner operation,
according to customer specifications, can be:
– /M: modulating with mechanical cam, with ease of management and ideal proportion between power delivered and thermal load.
– /E: modulating with electronic cam, with best performance and efficiency.
– /EV: modulating with electronic cam and VSD management, with noise emissions and energy saving optimization.
DB 9-12-16-20 are equipped with pilot ignition as standard, while it can be supplied on demand with DB 0-1-2-3-4-6 models. A hinge system for easier combustion
head maintenance is available on all models.
DB series is suitable for applications including heat recovery systems, with pre-heated air temperature up to:
– 150 °C as standard
– 200 °C (as standard for DB 2-3-4-6, with special construction for other sizes)
– 250 °C with special construction.
The composite configuration allows to create a modular and flexible combustion system, to be integrated with the fuel supply unit (gas pressure adjustment unit,
oil preheating/pumping station), gas train, control panel and fan; such accessories are available as part of the offer. The variable geometry combustion heads
guarantee a wide modulation range and the fluid dynamic conditions necessary for the optimization of the combustion process, ensuring a real energy saving.
The ventilation and combustion head with new geometry allow to minimize noise and polluting emissions.