butterfly valve with bare shaft series BUW2-DSC-B; ATEX II 2GD Ex h X; wafer type; length according to EN558−1R20; for abrasive medias (e.g. sand, cement, etc.); body ductile iron EN-GJS-400-15 epoxy coated; disc AISI 316; shaft AISI 430; liner carboxylated NBR; nominal flange pressure PN10/16/ANSI150; medium temperature -10...+100°C; pressure range 0...6bar; DN 450mm; length 114mm