Design and features Casing with volute manufactured with 8 mm cold-formed plate. Aseptic flanges according to DIN 11864-2. Double curvature impeller with blades on the rear side to reduce the axial thrust. Axial adjustment of the impeller ( bare shaft version) . Hygienic mechanical seal. Fully drainable pump. Designed according to the 3A and EHEDG standards. IEC B3 motors ( B35 close-coupled constructions) , IP 55, F-class insulation. Materials Parts in contact with pumped media        : AISI 316L Lantern and bearing support                : CF8 / GG-22 Gaskets ( standard)       : EPDM ( FDA)     Mechanical seal ( standard) : SiC/ C/ EPDM Internal surface finish : Ra d 0.8 µ m External   surface finish :   Satin finish