Fuel Line Orifice Housings

How evenly dispersed is the air and fuel going through your fuel lines to the burners? Properly balanced fuel lines, by clean air balancing, benefits burner performance, fuel distribution, combustion, boiler efficiency, and NOx reduction.  

  • Easy Installation for Balancing Fuel Lines to ±2% (Clean Air)

  • Improved Combustion (reduced FEGT/LOI, etc.)

  • Improved Boiler Efficiency

  • Improved Burner Performance

  • Reduced Slagging and Fouling

  • Allow for Improved Fuel Flexibilities

  • Improved Fuel Distribution

  • NOx Reduction

  • Use as Isolation Point in Fuel Line

Fuel line balancing via square edge orifices is the first step in balancing fuel to individual burners. Air is the medium that carries fuel to the burners. Properly balanced fuel lines, by clean air balancing, benefits burner performance, fuel distribution, combustion, boiler efficiency, and NOx reduction.

Balancing system resistance of fuel lines by the clean air method is the first phase of a comprehensive fuel and air balancing program. It is important to remember that a clean air balancing program is an important factor in optimizing pulverizer fuel and air balance and we have made it easier.

The STORM® designed orifice housing allows quick and easy installation changes for square edge orifices. The orifice plate easily slides in and out of the housing, making orifice changes very simple and safe.

STORM Orifice Housing Options

Connections Styles:

  • Flanges (0.625″ thick typical with matching 150# bolt pattern)
  • Victaulic Coupling Adapter Ring
  • Spool End with bevel (for weld-in application)
  • Spool End w/out bevel (for Dress Coupling connection)

Other Options:

  • Spools can be lined with 1/2″ or 1″ thick ceramic tile for increase wear resistance (typical when installed directly above the pulverizer).
  • Flanges can be provided as a rotating slip flange to allow for field adjustable during installation.
  • Purge air connections can be incorporated into housing design.
  • Test ports can be shop installed onto spools, depending on spool length and review of the plant environment.
  • Solid orifice plates (no hole) can be provided so that housing acts as an isolation point in the fuel lines.

Clean Air Balance with STORM Orifice Housing

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