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technische Dichtungen
O-Ring Werkstoffe im Vergleich – EPDM, NBR & FKM (Viton®)
Die Wahl des richtigen O-Ring Werkstoffs ist entscheidend für Dichtheit, Lebensdauer und Prozesssicherheit. Die folgende Tabelle bietet einen schnellen Überblick über die wichtigsten Eigenschaften der gängigsten Industrie-O-Ringe.
| Eigenschaft | EPDM O-Ring | NBR O-Ring (Nitril) | FKM O-Ring (Viton®) |
| Temperaturbereich | −50 °C bis +150 °C | −30 °C bis +100 °C | −20 °C bis +200 °C |
| Wasser- & Heißwasserbeständigkeit | sehr gut | gut | gut |
| Dampfbeständigkeit | sehr gut | eingeschränkt | gut |
| Öl- & Fettbeständigkeit | nicht geeignet | sehr gut | sehr gut |
| Kraftstoffbeständigkeit | nicht geeignet | sehr gut | sehr gut |
| Beständigkeit gegen Säuren & Laugen | sehr gut | eingeschränkt | sehr gut |
| UV- & Ozonbeständigkeit | sehr hoch | gering | hoch |
| Alterungsbeständigkeit | sehr hoch | mittel | hoch |
| Elastizität & Rückstellkraft | gut | gut | mittel |
| Typische Einsatzmedien | Wasser, Dampf, Chemikalien | Öl, Hydraulikflüssigkeiten | Kraftstoffe, Chemikalien |
| Typische Branchen | Sanitär, HLK, Industrie | Hydraulik, Maschinenbau | Automotive, Chemie |
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