B 2 Subject to change without prior notice 36 Feature Flanges Nominal diameter DN10 – DN50 Operating pressure 10-7 mbar (high vacuum) up to 0,5 bar (overpressure) Flanges Material Borosilikat glass DIN ISO 3585 (Schott: Duran), Quarz glass (Heraeus: HSQ 300) Operating pressure 10-7 mbar (high vacuum) up to 0,5 bar (overpressure) Clamping rings Specifications Not standardised Material Nylon reinforced Gaskets Material Elastomer: NBR, EPDM, FKM Temperature range NBR: -30 up to +100 °C EPDM: -35 up to +140 °C FKM: -20 up to +200 °C December 2021
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