Technical Specifications

Design and Operating Principle

PTFE rubber expansion joint designs are optimized with a PTFE (Teflon) inner lining integrated into an elastomer body, providing both flexibility and high chemical resistance.

The PTFE liner ensures excellent corrosion resistance and a low friction surface at the fluid contact area, while the elastomer body absorbs axial, lateral, and angular movements, reducing mechanical stress on the system.

Flanged connections provide secure installation, and the design offers reliable performance in pump and equipment connections with effective vibration and noise damping.

Performance Advantages

• Provides a wide range of chemical resistance
• High resistance to aggressive and corrosive fluids
• Combines PTFE chemical durability with elastomer flexibility
• Reduces vibration and noise
• Protects piping systems and equipment connections
• Ensures a low-friction internal surface
• Provides leak-free and safe operation
• Requires low maintenance

Operating Values

Operating Pressure

• Maximum 16 bar
  (depending on DN size, design, and PTFE liner structure)

Operating Temperature

PTFE Liner

• -50°C / +200°C

Elastomer Body

• EPDM: -20°C / +120°C
• NBR: -10°C / +100°C
• Viton: -10°C / +180°C

Movement Capabilities

• Axial Movement: ±10 mm – 20 mm
• Lateral Movement: ±8 mm – 15 mm
• Angular Movement: 5° – 8°

Note: Final operating values may vary depending on PTFE liner thickness, elastomer selection, product diameter, and process conditions.