Stenflex rubber expansion joint type AR-2 or type AR-4
Stenflex rubber expansion joint type AR-2 and type AR-4 are A expansion joints reinforced with high-quality aramid layers. Various flange drillings are possible in this set-up. Thanks to the aramid inlays, the AR expansion joints are PN 25 expansion joints suitable for applications up to 130°C. These expansion joints are designed to handle higher pressure loads.
Type AR-2 and type AR-4:
- With type AR-2, the tension rods are only limited on the outside, so that the expansion joint cannot extend.
- With type AR-4, the tension rods are limited on the outside as well as on the inside, so that the expansion joint cannot extend and cannot be pressed in. As in the case of a vacuum.
- Rubber grade: EPDM, NBR rubber
- Range: DN 25 to DN 400
- Temperature: max. 130°C
- Pressure rating: PN 25
Stenflex AR expansion joints can be used at pressures above 16 barg or in high temperatures combined with a relatively high pressure (for example 11 barg at 100°C). These versions are also suitable when extra safety is desired (the burst pressure is higher or equal to 75 barg).
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