PN16 Flexible Joint 8 Inch Expansion Joint SS304 Rubber Joint Flange

Double ball rubber joints (also known as double ball rubber flexible connectors or double ball rubber expansion joints) are essential flexible connection components in piping systems, providing critical shock absorption, noise reduction, and displacement compensation.

As a vital component of piping systems, the performance of double ball rubber joints directly impacts system safety and reliability. Proper selection, correct installation, and regular maintenance are essential for long-term stable operation.

Through the high elasticity and airtightness of rubber, these joints provide:

• Absorption of axial, lateral, and angular pipeline displacement
• Reduction of vibration and noise
• Compensation for thermal expansion and contraction from temperature changes
• Alleviation of impact forces during system startup

• Building Plumbing Systems:
  • Pump inlet and outlet vibration damping
  • Displacement compensation for high-rise building piping systems
• Industrial Piping Systems:
  • Chemical piping medium isolation
  • Thermal expansion compensation for heating systems
  • Piping connections for air compressors and refrigeration equipment
• Municipal Engineering:
  • Water supply networks
  • Wastewater treatment systems
  • Fire protection pipeline systems
• Special Applications:
  • Ship pipeline systems
  • Power plant circulating water systems
  • Oil transportation pipelines

• Leakage Issues:
  • Causes: Installation deviation, loose bolts, rubber ageing
  • Solutions: Re-centre installation, tighten bolts evenly, replace joint
• Premature Ageing:
  • Causes: Medium corrosion, UV exposure, over-temperature use
  • Solutions: Select appropriate materials, add protective covers, control temperature
• Abnormal Deformation:
  • Causes: Overpressure use, excessive displacement
  • Solutions: Check system pressure, install limit devices
• Vibration Transmission:
  • Causes: Improper selection, insufficient pre-compression
  • Solutions: Re-select type, adjust pre-compression