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This document applies to flange connections type 05, type 11, type 21 according to DIN EN 1092-1 with lens shaped gaskets, which are generally used in systems with operating pressures above 63 bar, mainly in pipelines. This document specifies the standard design and dimensions of lens shaped gaskets and their facings for DN 10 to DN 200 and PN 63 to PN 400.
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