Datasheet Content
HEAVY-OIL BURNERS TWO STAGES SK072005_C_en
FNDP 25/2 - FNDP 45/2 - FNDP 70/2
Burners for heavy-oil two stages.
Composed by: die-cast aluminum body, fan at high pressurisation, combustion head with adjustment at high efficiency
and high flame stability and hydraulic system of regulation combustive air on the two stages of flame.
Compact overall dimensions and disposition rationalized of the components with accessibility facilitated for operations
of setting and maintenance.
Complete of nozzles holder with integrated valves group and additional antigas valve, multistage preheating tank
with flanged heating elements, cylindrical metal mesh filter, preheating thermostat, antismoke thermostat, gasket for
installation on generator, nozzles, flexible hoses, line filter with heating resistance controlled by thermostat.
Fig. FNDP 70/2
FNDP 25/2 - FNDP 45/2 - FNDP 70/2
HEAVY-OIL BURNERS TWO STAGES SK072005_C_en
TECHNICAL DATA FNDP 25/2 - FNDP 45/2 - FNDP 70/2
MODEL FNDP 25/2 FNDP 45/2 FNDP 70/2
Flow min. - max. * [kg/h] 12-25 20-45 35-70
Thermal power min. - max. * [Mcal/h] 118-245 196-441 343-686
Thermal power min. - max. * [kW] 137-284 227-512 398-796
Fuel: HEAVY-OIL MAX 20°E at 50°C
Intermitted working operation (min. 1 stop every 24 hours) two stages
Environmental conditions operation / storage: -15...+40°C / -20...+70°C, rel. humidity max. 80%
Max. temperature combustion air [°C] 60
Fan motor [kW] 0.73 1.1 1.5
Resistances [kW] 3 4 7.4
Power supply: 3~400V, 1N~230V - 50Hz
Electric protection degree: IP 40
Noisiness ** min-max [dBA] / / 77-78
Burner weight [kg] 35 36 41
* Reference conditions: Environment temperature 20°C - Barometric pressure 1013 mbars - Altitude 0 metre (sea level).
** Measured sonourous pressure in the combustion lab, with funcional burner on beta boiler in a distance of 1 m (UNI EN ISO 3746).
OPERATING RANGE DIAGRAM
[mbar]
13
11
9
7
5
3
1
-1
0 100 200 300 400 500 600 700 800 900 1000 [kW]
Fig. X = Thermal power Y = Pression in the combustion chamber
The firing rates has been obtained based on test boilers in accordance with EN267 standards and are indicative of matching the burner to the boiler.
For the correct operation of the burner, combustion chamber dimensions must be in accordance with current regulation. In case of non-compliance,
contact the manufacturer.
FNDP 25/2 - FNDP 45/2 - FNDP 70/2
HEAVY-OIL BURNERS TWO STAGES SK072005_C_en
DIMENSIONS [MM]
I O
F
H D
H G E
A B TC-TL C1 - C2 *
* Overall dimension with the burner out in position of maintenance.
Fig. Dimensions FNDP 25/2 - FNDP 45/2 - FNDP 70/2
MODEL A B C1 C2 * D E F G H I H
FNDP 25/2 282 320 640 1150 133 325 155 18 280 / /
FNDP 45/2 282 320 640 1150 150 325 155 18 280 / /
FNDP 70/2 285 325 655 1165 164 357 170 18 300 10 144
BOILER PLATE
** Suggested dimension of connection between burner
and generator.
Fig. Boiler plate
MODEL L min L max M N**
FNDP 25/2 mm 283 340 M12 145
FNDP 45/2 mm 283 340 M12 160
FNDP 70/2 mm 340 368 M12 180
FLAME TUBE LENGTH
Flame tube length must be selected based on the specifications supplied by boiler manufacturer and, in any case,
it must be greater than the thickness of the boiler door included its insulation.
In case of boilers with flame inversion or front flue combustion chambers, it is necessary to insulate the area
between the flame tube and front door with refractory material. This protection material must not impede flame
tube extraction.
MODEL TC TL ***
*** For different flame lengths, please
170 350 contact our Technical-Sales Department.
FNDP 25/2 mm
FNDP 45/2 mm 170 350
FNDP 70/2 mm 250 350
FNDP 25/2 - FNDP 45/2 - FNDP 70/2
HEAVY-OIL BURNERS TWO STAGES SK072005_C_en
PRODUCT SPECIFICATION
SHORT DESCRIPTION
Heavy-oil burners two stages.
DETAILED SPECIFICATION
Heavy-oil burner two stages composed by:
• Die-cast aluminum body;
• Fan at high pressurisation;
• Combustion head with adjustment at high performance and elevated flame stability;
• Flange and insulating gasket for fixing at boiler;
• Three-phase with neutral power supply;
• Photodiode for flame detection;
• IP 40 electric protection level;
• Supports and tierods for burner extraction;
• Easy extraction of combustion head without get off the burners by bolier.
CONFORMING TO:
• CE rules;
• 2014/30/UE Directive E.M.C.;
• 2014/35/UE Directive L.V.;
• 2006/42/CE - 2006/42/EG - 2006/42/EC Directive MAC;
• 2014/68/EU (art.4, par.3) Directive P.E.D.;
• Reference rules: EN267 (liquid fuel) - EN746-2 (industrial thermoprocessing equipment).
STANDARD EQUIPMENT
• Flexible hoses for connection;
• Line filter electrically heated and equipped with a thermostat;
• Isomart gasket;
• Nozzles;
• Flange with insulating gasket;
• Burner nameplate;
• Warranty;
• Instruction handbook for installation, use and maintenance.
OPTIONAL
• Noise protection.
The illustrations and data here shown are indicative. F.B.R. Bruciatori S.r.l. reserves the right to bring, without any obligation of warning, any changes that would be appropriate to the continuing development of their products.
FNDP 25/2 - FNDP 45/2 - FNDP 70/2
