B 1 Subject to change without prior notice 24 December 2021 Feature Nominal diameter DN10 – DN50 Operating pressure Flanges with elastomer gasket, clamping ring FL-Compact or FL-Spezial 10-7 mbar up to 0,5 bar overpressure Aluminium flanges, elastomer gasket, clamping ring FL-Optimal or FL-Rekord: 10-7 mbar up to 1,5 bar overpressure Stainless steel flanges, elastomer gasket, clamping ring FL-Optimal or FL-Rekord: 10-8 mbar up to 1,5 bar overpressure Stainless steel flanges, metal gasket, clamping ring FL-Massiv or clamping chain: 10-9 mbar up to 1,5 bar overpressure At higher pressure a outer supporting ring and a suitable strong clamping ring has to be used. On request we advise you gladly. Flanges Material 1.4301, 1.4305, 1.4404 AISI 304, AISI 316, AISI 316L Raw material Bar: DIN EN 10088-3 Certificates Inspection certificate DIN EN 10204-3.1 raw material Declaration of compliance with the order DIN EN 10204-2.1 Other certificates on request. Clamping rings Material Aluminium, stainless steel Raw material Aluminium diecasting, stainless steel lost wax casting Gaskets Material Elastomer: NBR, EPDM, FKM Aluminium: not specified in DIN 28403 and ISO 2861 Temperature range NBR: -30: up to: +100 °C EPDM:: -35: up to: +140 °C FKM:: -20: up to +200 °C Aluminium: -196: up to +150 °C
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