Industrial PVC-U butterfly valves engineered by Georg Fischer for reliable isolation and throttling in chemical processing, water treatment, and industrial piping networks. The range includes Type 567 wafer style and Type 578 lug style configurations designed for installation between metric flanges according to EN ISO standards. Manufactured with durable PVC-U bodies and corrosion-resistant discs, these valves operate across DN50 to DN300 dimensions with nominal pressure ratings from PN6 to PN16. High-grade EPDM or FKM sealing options provide long-term chemical compatibility and bubble-tight shut-off across operating temperatures up to 45°C.