Technical Specifications

Design and Operating Principle

ChemGuard Fabric Expansion Joint designs are optimized using a multilayer fabric structure together with a high chemical-resistance inner layer.

The PTFE-coated inner sealing layer provides strong resistance against acidic and alkaline gases, while the fabric compensator structure absorbs thermal expansion, vibrations, and mechanical movements.

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

Thanks to its low-stiffness structure, it minimizes mechanical loads on equipment and duct systems.

Performance Advantages

• Provides high chemical resistance against acidic and alkaline gases
• Ensures safe operation in systems containing chemical vapors
• Offers higher corrosion resistance compared to metal expansion joints
• Reduces equipment loads thanks to its lightweight structure
• Provides high flexibility and low reaction force
• Offers easy installation and maintenance advantages
• Absorbs thermal expansion and vibrations
• Delivers long service life

Operating Values

Operating Pressure

• Maximum 0.5 bar

Operating Temperature

-40°C / +400°C

Movement Capacities

• Axial Movement: ±50 mm – 120 mm
• Lateral Movement: ±30 mm – 80 mm
• Angular Movement: ±5° – 12°

Note: The ChemGuard series is developed for applications where chemical resistance requirements are more critical than temperature resistance.