Style 231S Non-Restrained Flexible Expansion Coupling For Stainless Steel 

  • Flexible non-restrained expansion joint for aeration systems
  • Up to 4″ | 102 mm axial movement
  • Satisfies the requirements of AWWA C227
  • Sizes from 3 – 96″ | 80 – 2400 mm
  • Pressures up to 300 psi | 2068 kPa | 21 bar