Technical Specifications

Design and Operating Principle

Concentric & eccentric reducer rubber expansion joint designs are optimized with an elastomer body structure that enables safe connection between pipelines of different diameters.

Concentric designs are used for connections where the centerline is aligned, while eccentric designs are typically preferred in applications such as pump suction lines where level offset is required.

The flexible elastomer structure absorbs axial, lateral, and angular movements, reducing stress in the piping system. It also helps dampen vibration generated by pumps and equipment.

Flanged connections ensure secure installation, while the compact design provides space-saving advantages.

Performance Advantages

• Provides safe connection between different pipe diameters
• Eliminates the need for additional reducer fittings
• Absorbs thermal expansion
• Reduces vibration and mechanical stress
• Protects pumps and equipment connections
• Facilitates installation and alignment
• Saves space
• Offers a compact and economical solution

Operating Values

Operating Pressure

• Maximum 16 bar
  (depending on DN size and elastomer type)

Operating Temperature

• EPDM: -20°C / +120°C
• NBR: -10°C / +100°C
• Neoprene: -20°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: Movement capacities and operating values may vary depending on inlet/outlet diameters, pressure class, and elastomer type.