04.102 Fucoli butterfly valves acid-resistant seat with handwheel PN10/16

The butterfly valve is designed for isolation and regulation in drinking water pipelines and for neutral liquids, in sizes DN 150 to DN 1000. The design is double-eccentric with bidirectional sealing, so the valve seals in both flow directions. The body is cast in ductile iron EN-GJS-500-7 and powder coated internally and externally with drinking water approved epoxy RAL 5005, minimum 250 µm (GSK approved). The valve is designed in accordance with EN 1074-1/2 and EN 593, with flange drilling to EN 1092-2 and face-to-face length to EN 558 table 2 series 14. The working temperature is 0–70 °C, not frost resistant. In 04.102 (Duplex 316L) the seat is in acid-resistant steel AISI 316L. This is the difference from 04.100, where the seat is in ductile iron. The valve is always supplied with an acid-resistant stem and stem bush for the longest possible service life. The handwheel version has a Rotork IP67 worm gear that is factory set in the open and closed positions. The worm gear is self-locking and holds the disc in the selected position even when subjected to flow pressure. This version is intended for above-ground installation. For buried installation, the same valve is available with an IP68 gearbox.