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Double Disc Check Valves DDC Technical specifications Placement between flange according to DIN EN 1092-1, PN10 Nominal pressure max. PN40 Overall lengths according to DIN EN 558-1, Gr. 16 Tightness according to DIN EN 12266-1, Leakage Rate G (Sealing M, T) and Leakage Rate A (Sealing E, P, V) Operational limits according to DIN EN 1092-1 Identification according to DIN EN 19

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