Stenflex rubber expansion joint type AR-3

Product information

Stenflex rubber expansion joint type AR-3 is an A expansion joint reinforced with high-quality aramid layers. Various flange drillings are possible in this set-up. As a result of the hinge, the pressure reaction force is absorbed in a system and the expansion joint can only absorb angular rotations.

Why type AR-3? Type AR-3 is a rubber expansion joint type A reinforced with high-quality aramid inlays. This way, the AR expansion joint is a PN 25 expansion joint suitable for applications up to 130°C. The expansion joint is often combined in a set of two to compensate large lateral displacements.

Stenflex AR-3


  • Rubber grade: EPDM and NBR rubber
  • Range: DN 25 to DN 400
  • Temperature: max. 130°C
  • Pressure rating: PN 25


Stenflex rubber expansion joint type AR-3 can be used at a pressure level above 16 barg or in high temperatures combined with a relatively high pressure (for example 11 barg at 100°C). This version is suitable for use with higher pressure loads. In addition, the expansion joint is also suitable when extra safety is desired (the burst pressure is higher or equal to 75 barg).

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