Datasheet Content
DUAL FUEL GAS/LIGHT-OIL BURNERS AT SINGLE
SK073501_A_en
STAGE
DUAL FUEL GAS/LIGHT-OIL BURNERS AT SINGLE STAGE
GM X0 - GM X1 - GM X3 - GM X4
Dual fuel gas/light-oil burners at single stage.
They are composed by: aluminium frame, fan at high pressurisation, protection cover with noise reduction plate and
combustion head with adjustment at high efficiency and high flame stability.
Compact overall dimensions and disposition rationalized of the components with accessibility facilitated for the
operations of setting and maintenance.
Available in the versions METHANE (natural gas) or L.P.G. (to specify at the order) on demand specific versions for
town gas, coal gas or biogas.
Gas train completely assembled and tested; complete of single-stage working valve with flow adjustment, safety valve,
minimum gas pressure switch.
Complete of plug/socket 7 poles, flange and gasket for installation on generator.
Complete of nozzle, flexible pipes and line filter.
Fig. 1 GM X4
GM X0 - GM X1 - GM X3 - GM X4
DUAL FUEL GAS/LIGHT-OIL BURNERS AT SINGLE
SK073501_A_en
STAGE
TECHNICAL DATA AND OPERATING RANGE DIAGRAM GM X0 - GM X1 - GM X3 - GM X4
MODEL GM X0 GM X1 GM X3 GM X4
Thermal power min. - max. * [Mcal/h] 19-29 24,5-60 49.5-129,5 99,5-199,5
Thermal power min. - max. * [kW] 22,6-34,3 29-69,8 58.1-151 116-232
Gas flow G20 (NATURAL GAS) min. - max. * [Nm³/h] 2,3-3,4 2,9-7 5.8-15.2 11,6-23,2
Gas flow G31 (L.P.G.) min. - max. * [Nm³/h] 0,9-1,3 1,1-2,7 2.2-5.9 4,5-9
Fuel: NATURAL GAS (second family) - L.P.G. (third family)
Fuel category: I2R,I2H,I2L,I2E,I2E+,I2Er,I2ELL,I2E(R)B/I3B/P,I3+,I3P,I3B,I3R
Minimum pressure gas train D1/2" - S NATURAL GAS/LPG ** [mbar] 10/20 28/33 - -
Minimum pressure gas train D1" - S NATURAL GAS/LPG ** [mbar] - - 21/30 18/33
Maximum pressure at the entry of valves (Pe. max) 60mbar SIT; 360mbar DUNGS
LIGHT-OIL flow min. - max. * [kg/h] 2-3 2,5-6 5-13 10-20
Fuel: LIGHT-OIL 1,5°E at 20°C= 6,2 cSt = 35 sec Redwood N°1
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 60 60 60
Nominal electric power [W] 150 150 200 250
Fan motor [W] 100 100 150 200
Nominal absorption fan motor [A] 0,72 0,72 1,1 1,35
Power supply: 1/N~230V-50Hz
Electric protection degree: IP 40 IP 40 IP 40 IP 40
Noisiness *** min. - max. [dB(A)] 56-58 57-59 65-66 67-68
Burner weight [kg] 16 17 18 19
* Reference conditions: Environment temperature 20°C - Barometric pressure 1013 mbars - Altitude 0 metre (sea level).
** Minimal feeding-gas pressure to the gas train to get the maximum power of the burner, considering counter-pressure in combustion chamber of
value 0 (zero).
*** Measured sonorous pressure in the laboratory combustion, with functional burner on beta boiler to 1 metre of distance (UNI EN ISO 3746 law).
[mbar] 4.8
4.4
4.0
3.6
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
GM X0 GM X1 GM X3 GM X4
0
-0.4
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 [kW]
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 [Mcal/h]
Fig. 2 X = Thermal power Y = pressure in 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.
GM X0 - GM X1 - GM X3 - GM X4
DUAL FUEL GAS/LIGHT-OIL BURNERS AT SINGLE
SK073501_A_en
STAGE
DIMENSIONS [MM]
Fig. 3 Dimensions: GM X0 - GM X1 - GM X3 - GM X4
MODEL A B C D E F G H P S R1 R2 R3 R4 RD
GM X0 - D1/2" - S 15 162 175 90 43 305 210 65 150 150 133 200 254 240 Rp 1/2
GM X1 - D1/2" - S 15 162 175 90 43 305 210 65 150 150 133 200 254 240 Rp 1/2
GM X3 - D1" - S 16 185 195 108 54 340 248 70 190 150 168 280 337 291 Rp 1
GM X4 - D1" - S 20 185 195 125 78 368 248 70 200 200 173 280 337 319 Rp 1
BOILER PLATE
Fig. 4 Boiler plate
MODEL L min L* L max M N min N* N max
GM X0 mm 130 150 170 M8 100 110 130
GM X1 mm 130 150 170 M8 100 110 130
GM X3 mm 150 170 170 M8 120 130 140
GM X4 mm 170 205 226 M10 130 140 160
*: Suggested dimension of connection between burner and generator.
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 **
GM X0 mm 90 150
GM X1 mm 90 150
GM X3 mm 130 250
GM X4 mm 160 280
** For different flame lengths, please contact our Technical-Sales Department.
GM X0 - GM X1 - GM X3 - GM X4
DUAL FUEL GAS/LIGHT-OIL BURNERS AT SINGLE
SK073501_A_en
STAGE
PRODUCT SPECIFICATION
SHORT DESCRIPTION
Dual fuel gas/light-oil burners at single stage.
DETAILED SPECIFICATION
Dual fuel gas/light-oil burners at single stage, composed by:
• Aluminium frame;
• Fan at high pressurisation;
• Combustion head with adjustment at high performance and elevated flame stability equipped with blast tube and flame disc;
• Flange and insulating gasket for fixing at boiler;
• Single-phase power supply;
• Manual switch for the fuel selection gas/light-oil;
• Safety air pressure switch to stop the burner in lock-out in case of failed or anomalous fan operation;
• Models GM X0 - GM X1 with gas train with one-block valve class B;
• Models GM X3 - GM X4 with gas train with safety valve class A, adjustment 1st stage valve class A;
• UV probe for flame detection;
• IP 40 electric protection level.
CONFORMING TO:
• CE rules;
• 2014/30/UE Directive E.M.C.;
• 2014/35/UE Directive L.V.;
• 2014/68/EU Directive M.D.;
• 97/23/CE Directive P.E.D.;
• 2009/142/CE Directive GAS;
• Reference rules: EN676 (gas) - EN267 (liquid fuel) - EN746-2 (industrial thermoprocessing equipment).
STANDARD EQUIPMENT
• Flexible pipes;
• Line filter;
• Isomart gasket;
• Nozzle;
• Flange with insulating gasket;
• Burner nameplate;
• Warranty;
• Instruction handbook for installation, use and maintenance.
OPTIONAL
• Noise protection;
• Antivibration couplings;
• Handle gas taps.
The illustrations and data here…
