UltraTherm Fabric Expansion Joint

MAXWOR UltraTherm Fabric Expansion Joint solutions are advanced fabric compensator systems developed to absorb thermal expansion, vibrations, and multi-axis movements in very high-temperature process gas and flue gas lines.

Designed for extreme temperature and demanding process conditions, these systems deliver reliable and long-lasting performance thanks to their multilayer, high-temperature-resistant structure.

The UltraTherm series is widely preferred as a lightweight alternative to metal expansion joints in high-temperature gas lines, thanks to its low reaction force, high flexibility, and large movement capacity.

It is commonly used in power plants, cement plants, waste incineration facilities, and metallurgy applications.

Technical Specifications

Design and Operating Principle

UltraTherm Fabric Expansion Joint designs are optimized using multilayer high-temperature resistant fabric and insulation structures.

The compensator structure reduces stresses in duct and equipment systems by absorbing thermal expansion, vibrations, and mechanical movements caused by high-temperature gas flows.

Systems can be manufactured in circular or rectangular cross-sections and can adapt to different duct geometries using flanged or frame-type connection options.

Thanks to its high-flexibility structure, it can accommodate large axial, lateral, and angular movements with low reaction force.

Performance Advantages

  • Provides reliable operation at very high temperatures
  • Offers higher expansion capacity compared to metal expansion joints
  • Provides superior resistance to thermal shock
  • Reduces mechanical stresses and vibrations
  • Minimizes equipment loads due to low reaction force
  • Provides large movement capacities
  • Ensures suitability for harsh process conditions
  • Delivers long service life

Operating Values

Operating Pressure

  • Maximum 0.2 bar

Operating Temperature

0°C / +900°C
(depending on layer structure and insulation design)

Movement Capacities

  • Axial Movement: ±80 mm – 200 mm
  • Lateral Movement: ±50 mm – 150 mm
  • Angular Movement: ±10° – 20°

Note: The UltraTherm series is optimized for high-temperature process applications where maximum temperature resistance is the primary requirement.

Design & Material

The multilayer structure used in UltraTherm Fabric Expansion Joint designs is optimized to provide high temperature resistance, thermal insulation, and long service life.

Inner Sealing Layer

  • PTFE-coated fiberglass fabric
  • High-temperature resistant technical textiles

Thermal Barrier and Insulation Layers

  • Ceramic fiber fabric
  • Ceramic felt
  • High-temperature insulation felts

Load-Bearing Layers

  • Fiberglass
  • High-strength technical textiles

Outer Protective Layer

  • Silicone-coated fiberglass fabric
  • Outer surface structures resistant to high temperatures and environmental effects

Connection Elements

  • Carbon Steel Frame
  • Stainless Steel Frame (Optional)

Manufacturing is custom-optimized according to operating temperature, process gas type, duct size, movement requirements, and insulation needs.

Applications

  • Industrial chimney and exhaust systems
  • Cement and clinker kilns
  • Power plants
  • Waste incineration facilities
  • Steel and metallurgy plants
  • Very high-temperature process gas lines

Documents

Quotation Form