Resilient seated butterfly valves 301 series.Size range 1.1/2” ÷ 40” (DN40 ÷ DN1000) Type Wafer, Lug, Double flanged Face to face dimension EN 558 series 20 Top flange ISO 5211 Max working pressure 20 bar - bidirectional Flange drilling PN6, PN10, PN16 / ANSI class 150 Operating temperature -20 °C ÷ +160 °C (-4 °F ÷ +320 °F) Standard materials Body: Ductile Iron, Carbon Steel, Stainless Steel, Al/Bronze, F51 Disc: Ductile Iron, Carbon Steel, Stainless Steel, Al/Bronze Stem: AISI 316, AISI 420, AISI 630, MONEL K Seat: NBR, EPDM, EPDM HT, VITON, more (all seats have inside a metal ring reinforcement) Leakage class Rate “A” - No leakage – according to EN 12266-1 Applications Liquids or gases in industrial environments, plants, water treatment, vacuum, other applications with compatible materials to working conditions Certifications 2014/68/UE PED, 2014/34/UE ATEX, SIL IEC 61508 - IEC 61511 GOST-R, CU TR 10 – CU TR 32, TA-Luft 
