Expansion joint – BDI Model A Fabric EJ with captive liner

DUCTING EXPANSION JOINTS

The most versatile combination of flexible element and hardware, covering the widest range of applications in the industry. THE ONE SOLUTION to most fabric expansion joint requirements, 100% factory assembled.

For applications where abrasive and corrosive protective liners are required and/or maximum protection of flexible element and/or in layered composite belts used attemperatures of 450ºF – 2300ºF.

Strelice

When vertical, horizontal & lateral movement are present

  • Reliable Performance at High Temperature
  • Large Movement Capability
  • Wide Selection of Flexible Elements for full Temperature Range
  • Rectangular or Round Configurations
  • 100% Shop-Assembled for easy field installation,
    bolt in or weld options
  • Minimal Deflection Forces
  • Wide Selection of Hardware and Metallurgy

The Captive Angle seal was developed to overcome the problems of large flow liner gaps required in conventionally designed, fixed liner expansion joints. The liner gaps, which are necessary to allow for lateral movement, provide ready access to fly ash infiltration into the cavity between the fabric and liner. This infiltration leads to packing which inhibits proper expansion joint movement absorption and thus promotes premature failure of the expansion joint. The Captive Angle seal solves these problems by maintaining tight liner clearances under all movement conditions.

The captive angle expansion joint can solve the most demanding problems of any fabric expansion joint application – a fact proven by hundreds of successful installations.

  • Pressure containing liner design suited to purge medium containment even when large lateral movements are absorbed
  • Projected fabric attachment avoids heat sink effect on outer elastomer; hence, higher temperature capability
  • Large movement capability
  • Suitable for roughest service, and heavy particulate loading
  • Can be supplied with Purge Option

As service conditions become more demanding, the BACHMANN MODEL A Expansion Joint can be supplied with a comprehensive variety of options including the Dome Seal, the 3-Point Lip Seal, Purge connections, and refractory lining, or combinations of these which may be required by the specific application. It is preferable to custom design the expansion joint assembly with precisely the options required to afford the best balance of integrity and economy

Typical
Thermal
Gradient
Curve

Bachmann
 Ductflex Model A
Fabric Joint