B 4 Subject to change without prior notice 52 December 2021 Feature Nominal diameter DN6 + DN8 DN10,2 – DN17,2 DN1/4“ – DN3/4“ Operating pressure (-10 °C up to +140 °C) max. 25 bar If elastomer gaskets and suitable clamping rings are used. Flanges Material 1.4301, 1.4404, 1.4435 AISI 304, AISI 316L Raw material Bar: DIN EN 10088-3, DIN EN 10272 Forging: DIN EN 10022-5 Surface finish Hygienic class (Surface raughness inside/outside) H1, HE1: Ra<1,6µm / Ra<1,6µm (no application) H2, HE2: Ra<0,8µm / Ra<1,6µm (Standard) H3, HE3: Ra<0,8µm / Ra<1,0µm H4, HE4: Ra<0,4µm / Ra<0,8µm H5, HE5: Ra<0,25µm / Ra<0,8µm (E = Inner surface electropolished) Other surfaces available on request. Certificates Inspection certificate DIN EN 10204-3.1 raw material Inspection certificate DIN EN 10204-3.1/AD2000-W2 raw material with certificate for transfer of identification Test report DIN EN 10204-2.2 e.g. surface roughness, material, ferrit portion Declaration of compliance with the order DIN EN 10204-2.1 Other certificates on request Clamping rings Material AISI 304 Surface finish Blank Certificates Certificate TÜV Type-test compessive strength Gaskets Material EPDM, VMQ, FKM, PTFE, PTFE-enveloped (not specified in DIN 32676) Temperature range NBR: -30 up to +100 °C EPDM: -35 up to +140 °C VMQ: -40 up to +200 °C FKM: -20 up to +200 °C PTFE: -200 up to +260 °C Certificates FDA 21 CFR § 177.2600 FDA 21 CFR § 177.1550 (PTFE) USP VI TA-Luft
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