Bellows Construction

Our rubber expansion joint designs always comply with the European Pressure Equipment Directive PED 2014/68/EU for the specified operating conditions, follow the guidelines of the Fluid Sealing Association (FSA) Technical Handbook for Non-Metallic Expansion Joints and ASTM F1123 – 87 Standard Specification for Non-Metallic Expansion Joints.

Certificate PED 2014/68//EU

An expansion joint body is constructed as follows:

  • high-grade leak-proof medium-resistant internal tube (bore)
  • multiple layers of pressure-resistant high-strength tire cord fabric
  • weather, ozone and UV-resistant seamless external layer (cover)