butterfly valve with manual gear box series BUW4-CSN-G-3C; wafer type; length according to EN558−1R20; body carbon steel A216-WCB epoxy coated; disc AISI 316; shaft AISI 430; liner NBR; nominal flange pressure PN10/16/ANSI150; medium temperature -10...+100°C; pressure range 0...10bar; DN 200mm; length 60mm; incl. inspection certificate EN-10204-3.1; for material, pressure, function and tightness