Self-aspirating gas fired igniters

Tube Ø48.3 mm

Self-aspirating gas fired igniters guarantee the reliable and safe ignition of main burners in furnaces and boilers if no air supply lines are available. SMITSVONK gas igniters of size Ø48.3 mm can be equipped with up to four additional gas tubes for increased heat release. 

The design is insensitive to moisture as the initial ignition is based on the proven high energy ignition technology of SMITSVONK. Integrated long-lasting spark plugs and ionisation electrodes assure a long service life with a minimum of downtime for maintenance.

The intake of combustion air is easily  adjusted at all models. If needed the conversion to a forced-air gas fired igniter is possible with little effort.


  • Insensitive to pressure fluctuations
  • For all kind of gases and pressures
  • Durable stainless steel construction
  • ATEX and IECEx approved versions for hazardous area use
  • Rugged design for harsh environmental conditions


Ignition of main burners in furnaces, boilers, incinerators in

  • Petrochemical industry
  • Refineries
  • Power plants

Technical data

Tube diameter48,3 mm
Tube length (L)400 - 3000 mm, in steps of 100, 200 and 500 mm
Air inlet position (A)175 mm, ≥300 mm, in steps of 10 mm
Additional gas tubes1, 2, 4
Connection to main burnerMounting flange, 2" ANSI 150 lbs RF
Gas connection1/2" NPTF (flange optional)
Air connectionOptional (1/2" BSPF provided)
Electrical connection2x M20, for ignition and flame detection
IgnitionHigh energy ignition, 1 spark plug, integrated
Flame detectionIonisation electrode, integrated
Thermocouple (optional)
Material enclosure / tubeStainless steel: 310, 316
Material connectionStainless steel: 316
Perm. temperature range-40...+80°C
Version for use withNatural gasPropane
Type designationL48AV...-V_E-...L48PV...-V_E-...
Heat release (min - max)17 - 250 kW22 - 370 kW
Minimum pressure0.2 barg0.2 barg
Maximum pressure0.8 barg0.8 barg
Version for use in Safe areasHazardous areas
Product codeL48AV13JB-1000-300-VL48PV13EXE-1200-450-VHT-2E-FA...
Gas typeNatural gasPropane
Heat release46 - 75 kW120 - 195 kW
Tube diameter48.3 mm48.3 mm
Tube length (L)1000 mm1200 mm
Air inlet position (A)300 mm450 mm
Flame detectionIonisation rod, max 280°CIonisation rod, high temperature, >280°C
Extra gas tubes02
Gas connectionScrewed, 1/2" NTPF, standard Flanged, 1/2" ANSI 150 lbs RF
II 2G Ex e IIC T5
II 2G Ex e IIC T6

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