Technical Specifications

Design and Operating Principle

Unlimited metal expansion joint designs are developed through project-specific calculations and engineering analysis to accommodate combined axial, lateral, and angular movements.

Single-bellows, multi-bellows, or specially geometrically designed bellows structures ensure controlled absorption of thermal expansion, vibration, and mechanical loads within the system.

Flanged, weld neck, or custom connection types can be manufactured, and each system is optimized according to operating pressure, temperature, fluid type, and movement requirements.

These expansion joints provide reliable and long-lasting performance in critical process lines operating under high temperature and high pressure conditions.

Performance Advantages

• Provides custom solutions for applications that cannot be solved with standard products
• Maximum design flexibility
• Capable of large movement ranges
• Fully tailored to process conditions
• High safety and long service life
• Optimized pressure, temperature, and movement performance
• Wide range of material and connection options
• Reliable performance in critical process applications

Operating Values

Operating Pressure

• Vacuum – 150 bar
• (depending on DN size, bellows geometry, and design)

Operating Temperature

• -196°C / +700°C
• (depending on material selection)

Movement Capabilities

• Axial Movement: ±10 mm – 500 mm
• Lateral Movement: ±10 mm – 300 mm
• Angular Movement: ±2° – 20°

Note: In unlimited metal expansion joint solutions, all operating values are calculated on a project basis and are not limited by standard catalog constraints.