| Technical info | - The sealing rings (DIN 11851) comprise different materials and are suitable for different substances
- HNBR (yellow) is suitable for steam, hot air, grease and oils
- HNBR (yellow) is not suitable for acids and bases
- EPDM (black) is suitable for steam, hot air and acids
- EPDM (black) is not suitable for grease, oils and bases
- NBR (blue) is suitable for grease and oils
- NBR (blue) is not suitable for steam, hot air, acids and bases
- MQV (red/clear) is suitable for hot air, grease and oils
- MQV (red/clear) is not suitable for steam, acids and bases
- FPM (black/green) is suitable for hot air, grease, oils, acids and bases
- FPM (black) is not suitable for steam
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