Asahi Butterfly valves are quarter turn valves with equal percentage type flow characteristics. They provide moderate flow control and therefore can be used for both on/off and modulating service. Good tolerance to suspended solids but not recommended for use with slurries or debris. The butterfly valve is well suited for a wide variety of fluid flow applications. We offer Asahi Butterfly valves at the following types: Type 56: 400mm (16”) Body: PP, PVDF Type 75: 450-600mm (18”-24”) Body: PP, PVDF Type 56D: 400mm (16”) Body: PDCPD Type 75D: 450-600 mm (18”-24”) Body: PDCPD Contact us for details.