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There is a change in face-to-face length of CEREX® 300 Butterfly Valves DN 350 since 1 August 2016
From 92 mm (EN 558, basic series 25) to 78 mm (EN 558, basic series 20). This change affects both Lug and Wafer type in all material variants.
For the valves manufactured before 1 August 2016 it is possible to order original wider rubber collar as a spare part.
All DN 350 order numbers were changed as well.