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DURAG

Combustion Products

DURAG are a worldwide operating group of companies and one of the market leaders for intelligent solutions in the fields of combustion technology, environmental monitoring, data management as well as tunnel sensors. DURAG offers modern technology, certified equipment and reliable services tailored to the individual needs of our customers worldwide since 1948.

DURAG Ignition Devices

DURAG electronic igniters ignite oil and gas burners of any capacity in industrial applications and power plants. The energy required for ignition of the burner is stored in a high-voltage capacitor in the device. The energy is then switched to the igniter tip via a wear-resistant electronic switch. The resulting spark discharge at the igniter tip will ignite the fuel. For reliable ignition during the start phase, the igniter delivers 20 sparks/s for 60 seconds and then switches down to 5 sparks/s (D-HG 400). When the operating voltage is switched on, the igniter will automatically begin to spark. The ignition function of the igniter is signalled via an LED and the potential-free contacts of the igniter acknowledgment relay.

The ideal position of the igniter tip for igniting oil burners is generally at the edge of the atomizing cone directly in front of the swirler. The actual position is determined by adjusting the igniter tip axially by hand. If heavy oil is being fired, it is necessary to sufficiently preheat it to between 90°C and 130°C. In the case of gas burners, the position of the igniter tip is not of critical importance. There must, however, be a mixture of fuel and air present at this position. For a soft start, a low flow velocity (start-up position of the burner) should be set.

The D-HG 400 high energy ignition device is suitable for the ignition of gas or liquid fuels in industrial burners of any capacity

  • Ignition of liquid or gaseous fuels with large power ratings - ignites even heavy oil no. 6
  • Compact design: control unit and ignition lance form one unit (D-HG 400-50, -51)
  • Special designs for potentially explosive atmospheres are available (D-HG 400-54 Ex, -72 Ex)
  • Special design with battery operation (D-HG 400-80 with D-HG 400-81)
  • Special design for tilting burner with flexible ignition lance (D-HG 400-90)
  • No wear because thyristor controlled
  • 20 ignition sparks with 4.5 J per second (i.e. 90 J total per second)
  • Ignition feedback signal via integrated LED or potential-free relay output
  • Suitable as “Ignitor Class 3 Special“ in accordance with NFPA 8

D-HG 55 Electronic ignition transformer The D-HG 55 electronic ignition transformer is suitable for the ignition of gases and liquid fuels in small burners.

  • Ignition of oil and gas
  • High-performance and reliable ignition
  • Simple to use and installation
  • Robust enclosure for industrial use
  • Maintenance-free because no wearing parts
  • 100 ignition sparks/second with a mains frequency of 50Hz, 120 ignition sparks/second with a mains frequency of 60Hz
  • Suitable as “Ignitor Class 3 Special“ in accordance with NFPA 8501 and NFPA 850

6 - 40 MW Warm Up Gun

  • Ignition of pulverized fuels:
  • Brown coal
  • Hard coal
  • Bio mass
  • Integrated High Energy Spark Ignition
  • Optional optical Flame monitoring, Flexible and rigid version
  • Optional available for hazardous areas

DURAG Burner controls

D-GF 150-MB
Self-monitoring and fail-safe burner control with integrated Display and Modbus communication for the control of gas and oil burners as well as combined gas/oil burners of any capacity.
AGA Approved


D-GF 150
Self-monitoring and fail-safe burner control for the control of gas and oil burners as well as combined gas/oil burners of any capacity.
AGA Approved


D-AM 150 Display module
Extension module for the D-GF 150 automatic firing device with functions ranging from first out annunciator to plain text display up to fieldbus communication.

DURAG Flame Scanners

D-LE 103 Flame sensor
Flame sensor (flame scanner) for the monitoring of gas, oil and coal flames, primarily in single burner view applications.
AGA Approved


D-LE 603 Flame sensor
Flame sensor (flame scanner) for the monitoring of gas, oil and coal flames, primarily in multi-burner view applications
AGA Approved


D-LE 703 Flame sensor with optic system
D-LE 703 flame sensor (flame scanner) for use with
flexible fibre optic system D-LL 703
rigid fibre optic system D-LL 704.
AGA Approved

DURAG Flame Monitors

D-LX 100 Compact flame monitor
Self-monitoring and fail-safe compact flame monitor for the monitoring of gas, oil and coal flames with integrated UV, VIS or IR flame sensor, primarily in single burner view applications.
AGA Approved


D-LX 200 Compact flame monitor
Self-monitoring and fail-safe compact flame monitor for the monitoring of gas, oil andcoal flames with integrated UV or IR flame sensor.
AGA Approved


D-LX 720 Compact flame monitor with fibre optic system
Application with
flexible fibre optic system D-LL 703
or rigid fibre optic system D-LL 704
AGA Approved


DURAG Control Units

D-UG 660 Control unit
Self-monitoring and fail-safe control unit for the monitoring of gas, oil and coal flames with DURAG UV, UV+IR or IR- flame sensors, primarily in multiple-burner furnaces.
AGA Approved


DURAG Accessories
Module racks,Housings, Digital displays,Test light sources, Adjustment aids,Mounting parts and others