High Performance Gas Pipe Ignitor

Product Announcement from GE & Alstom Power

High Performance Gas Pipe Ignitor-Image

The LIMIELIGHT™ High Performance Gas Pipe Ignitor has been carefully designed to integrate the latest in combustion technology, flexibility and overall reliability.

This is a product upgrade of conventional 3" eddy plate gas pipe ignitors incorporating state-of-the-art technology to provide increased capacity and turndown capabilities.

The LIMELIGHT™ High Performance Gas Pipe Ignitor allows for improved combustion airflow with minimum pipe obstruction and and pressure drop. The improved airflow results in a higher capacity along with greater turndown capabilities. Additionally, it allows for greater immunity to fluctuations in windbox pressure.

This new design offers reliable ignition and operation with heat release rates between 0.5-18 Million British Thermal Units per hour (MMBTU/hr.)

Flexible by design, the LIMELIGHT™ high Performance Gas Pipe Ignitor can be adjusted with a pressure regulator or control valve.

The LIMELIGHT™ High Performance Gas Pipe Ignitor and its associated flame proving device were designed to meet all code requirements including the National Fire Protection Association (NFPA) and Black Liquor Recovery Boiler Advisory Committee (BLRBAC) guidelines.

This high heat output ignitor is useful in a wide range of applications. it offers a clean and efficient method for boiler warm-up and flame stabilization periods. this ignitor can also be used for bed burn out or above that stoker in a bark-fired unit.

The LIMELIGHT™ High Performance Gas Pipe Ignitor is available with the following five different heat release rate options:

  • 0.5 - 2.5 MMBTU/hr
  • 1.0 - 6.0 MMBTU/hr
  • 2.0 - 10.0 MMBTU/hr
  • 3.0 - 13.0 MMBTU/hr
  • 10.0 - 18.0 MMBTU/hr

Different tips are available for optimum flame length and patterns.

Solid conductor rods replace internal wires to the flame rod and spark tip. This eliminates the overheating and failures found at times with previous designs. Ceramic bushings are used to insulate the solid conductor rods, resulting in a compact, well-insulated design that withstands high temperatures.


  • Reliable ignition and operation
  • Easy retrofit with existing 3" pipe ignitors, resulting in minimal conversion costs for upgrade
  • Variable heat release rates with 5 to 1 turndown in most models allowing maximum operational flexibility when required
  • High temperature rated flame and spark rods included
  • No wiring in high temperature areas
  • Stainless steel construction
  • Ignitor internals easily removed from the guide pipe
  • High quality pin and socket electrical connectors
  • Optional retrofit with automatic or manual retract mechanism
  • Optional guide pipe available with upgraded material for longer life (same material as out DrySpout™ Smelt Spouts)
  • Meets NFPA and BLRBAC requirements


  • Highly reliable start ups and operation even with fluctuations in windbox pressure
  • Bluff body design improves combustion airflow with minimum pressure drop
  • Increased efficiency results in higher heat outputs of up to 18 MMBTU/hr. This allows the ignitor to be used as a Class 1 ignitor, thereby increasing reliability and eliminating the use of scanners for main burners without replacing gas or air piping.
  • Maintenance time reduced with easy removal
  • Reliable flame detector utilizing ALSTOM's DFI flame proving technology as described in PIB 234
  • Reliable ignition spark during trial time periods reduces spark plug maintenance
  • Components allow for effortless interface with a wide variety of OEM equipment
  • Integrates with the LIMELIGHT™ Ignitor Control Cabinet, as shown on Page 12 of our catalog.

Increasing Your Competitive Edge

The LIMELIGHT™ High Performance Gas Pipe Ignitor is another example of the ALSTOM commitment to provide products and services to improve performance and reduce maintenance, with the goal of increasing your competitive edge.