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PVDF Butterfly Valve Flange Standard BS Table D for Mining Plant. Heavy Duty Construction: Steel frame inside body and disc for sizes above 10 inches to strengthen the valve. Wide Material Options: Body and disc available in PVC-U, PVDF, PP-GF, PP-H, and PVC-C. Versatile Actuator Support: Electric and pneumatic actuator mounting is available for automation. Durable Seal Materials: Seal options include EPDM and FPM for chemical resistance. Robust Gearbox Design: Gearbox features aluminum alloy and plastic shell for optional use. Multiple Standard Compliance: Meets DIN, ANSI, JIS, and BS standards for global compatibility. Large Size Capacity: Available in sizes ranging from DN150 to DN600 (6 to 24 inches).