Expansion joint – BDI Model U Fabric EJ

DUCTING EXPANSION JOINTS

Bachmann Dampjoint Model “U” style expansion joints feature low stress, integrally molded reinforced corners; thus, the joints require only one longitudinal splice. Along with its integrally moulded flanges, the model “U” is your optimum choice for applications, where elastomers can be used in direct contact with the media, without internal protective liners.

Strelice

When vertical, horizontal, & lateral movement are present

Modelu

Features and Benefits:

  • Maximum active expansion joint between flanges, hence optimum flexibility
  • Elimination of Corrosion-affected hardware
  • Rectangular, Square, or Round Configuration
  • Minimal Spring Rates
  • Self-Sealing
  • Economical
  • Low-cost installation
  • Easy Replacement
  • Noise Reduction
  • Vibration Isolation

Bachmann Dampjoint Model “U” expansion joints are manufactured of plies of various elastomers and reinforcing substrates, which are vulcanized and fabricated into high strength expansion joint membranes. Depending on the type of service application, elastomers such as Neoprene (180°F), Chlorobutyl (275°F), Fluorelastomer (450°F), or reinforced PTFE composite (600°F) are selected. Integrally molded corners and flanges constitute the inherent design features of the “U” style expansion joint. Backing bars are part of the standard supply.

Applications:

Model “U” style expansion joints are best suited for application in wet or dry gas service, where corrosion dictates the use of integrated expansion joint flanges. Primary “U” style applications are downstream of electrostatic precipitators and upstream and downstream of flue gas desulphurization equipment in power stations and similar service in all other heavy industries.

Model "U-1"
Available options:

Weld-in or bolt-in flow liners may be added, when medium is expected to be erosive due to dust and other heavy particulate matter. Other Bachmann Damjoint models are available with liners. Consult Bachmann Dampjoint’s factory directly for additional details concerning your specific applications.

Model “U-2” with Weld-in Flow Liner
Size / Temperature / Pressure Ranges:

Model “U” expansion joints are available in all sizes from the smallest to the very largest. Temperatures most commonly from -60°F to 600°F can be accommodated depending on materials selected. A design temperature up to 1000°F could also be accommodated in particular situation. Do not hesitate to contact us for further details. Pressures of ± 5 psig can be accommodated depending on thickness and type of construction.

Model “U-3” with Bolt-in Flow Liner
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