Datasheet Content
HEAVY-OIL BURNERS ONE STAGE SK072015_A_en
FNDL 8 - FNDL 16 - FNDL 25
Burners for heavy-oil single stage with: fan at high pressurisation, combustion head with adjustment at high
efficiency and high flame stability.
Disposition rationalized of the components with accessibility facilitated for operations of setting and maintenance.
Complete of flange and gasket for installation on generator, nozzle, flexible pipes, line filter electrically heated and
equipped with a thermostat.
FNDL 8 - FNDL 16 - FNDL 25
HEAVY-OIL BURNERS ONE STAGE SK072015_A_en
TECHNICAL DATA FNDL 8 - FNDL 16 - FNDL 25
MODEL FNDL 8 FNDL 16 FNDL 25
Flow min. - max. * [kg/h] 5-8 7-16 12.5-25
Thermal power min. - max. * [Mcal/h] 49-78.4 68.6-156.8 122.5-245
Thermal power min. - max. * [kW] 57-91 .1 79.8-182 142- 285
Fuel: HEAVY-OIL MAX 20°E at 50°C
Intermitted working operation (min. 1 stop every 24 hours) one stage
Environmental conditions operation / storage: -15...+40°C / -20...+70°C, rel. humidity max. 80%
Max. temperature combustion air [°C] 60
Nominal electric power [kW] 1.7 2 4.8
Fan motor [kW] 0.25 0.25 0.55
Resistances [kW] 1.2 1.5 2.4
Fan motor current absorption [A] 8 10 18.2
Auxiliary current absorption [A] 0.14 0.14 0.2
Power supply: 1N~230V-50Hz 3/N~400V,
1N~230V-50Hz
Electric protection degree: IP 44
Noisiness ** min-max [dBA] 69 69 74
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]
3.5
3
2.5
2
1.5
1
0.5
FNDL 8 FNDL 16 FNDL 25
0
-0.5
50 100 150 200 250 300
[kW]
Fig. 1 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.
FNDL 8 - FNDL 16 - FNDL 25
HEAVY-OIL BURNERS ONE STAGE SK072015_A_en
DIMENSIONS [MM]
Fig. 2 Dimensions FNDL 8 - FNDL 16 - FNDL 25
MODEL A B C D E F G H I L
FNDL 8 253 294 107 410 251 102 120 180 226 10
FNDL 16 253 294 107 410 251 102 120 180 226 10
FNDL 25 255 294 130 410 251 102 140 180 226 10
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 **
FNDL 8 mm 110 230
FNDL 16 mm 110 230
FNDL 25 mm 120 240
** For different flame lengths, please contact our Technical-Sales Department.
FNDL 8 - FNDL 16 - FNDL 25
HEAVY-OIL BURNERS ONE STAGE SK072015_A_en
PRODUCT SPECIFICATION
SHORT DESCRIPTION
Heavy-oil burners single stage.
DETAILED SPECIFICATION
Heavy-oil burners single stage composed by:
• Fan at high pressurisation;
• Combustion head with adjustment at high performance and elevated flame stability;
• Flange and insulating gasket for fixing at boiler;
• Photodiode for flame detection;
• IP 44 electric protection level;
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;
• Nozzle;
• 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.
FNDL 8 - FNDL 16 - FNDL 25
