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U.S. Bellows U.S. BELLOWS, INC.
FABRIC EXPANSION JOINT CATALOG
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Turbulent Flue Gas, Wet Gas Expansion Joint Applications

left border   Turbulent Flue Gas, Wet Gas Expansion Joint Applications Turbulent Flue Gas, Wet Gas Expansion Joint Applications

Similar Applications

Fossil Fired Power Plant, Re-heater to chimney, Pulp and Paper Plant Induced Draft Fan to Chimney, Refinery, Steam Generator to Stack

Typical Conditions

250° F to 500° F operating temperature, -35" to +50" WG pressure, Minimal particulate downstream of precipitator. Potential for wet conditions.

Sample Data Sheet for Listed Applications

Turbulent Flue Gas, Wet Gas Expansion Joint Applications Data Sheet

Recommended Expansion Joint Designs

Common Design Features:

  1. Fabric Belt: At fan locations, the belt material should have a high resistance to flutter. (FLEXXCEL FF1)
  2. Frame Attachment: Bolt-in design for attachment to equipment or duct flanges. (If equipment or duct flanges are not present, weld in designs are recommended.)
  3. Liner: Flow liner to reduce turbulence/flutter of fabric belt material.
Style 200B Diagram

Style 200B

  • Design Performance: *****
  • Manufacturing Cost: $$$$
  • Installation cost: $$$$
  • Unique design features: Integral telescoping liners. Does require tack welding nuts.

    Style 100B Diagram

    Style 100B

  • Design Performance: ****
  • Manufacturing Cost: $$$$
  • Installation cost: $$$$
  • Unique design features: Field weld liner. Does require tack welding nuts.

    Style 300B Diagram

    Style 300B

  • Design Performance: ****
  • Manufacturing Cost: $$$$$
  • Installation cost: $$$$
  • Unique design features: Integral liner. Ease of pre-compression for installing in breech opening. Does not require tack welding nuts.

    Style 400B Diagram

    Style 400B

  • Design Performance: **
  • Manufacturing Cost: $$$$
  • Installation cost: $$$$
  • Unique design features: Integral liner. Ease of pre-compression for installing in breech opening. Requires belt attachment nuts to be tack welded. Not recommended in negative pressure applications before ID fan.

    Style 500B Diagram

    Style 500B

  • Design Performance: **
  • Manufacturing Cost: $$$
  • Installation cost: $$$
  • Unique design features: Bolt-on liner. Flanges on fabric belt attach directly to duct flange or equipment. Not recommended in negative pressure applications before ID fan.

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