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Fluorine PTFE PFA FEP Lined Manual Pneumatic Flange End Floating Ball Valve. Zero Leakage Sealing: Superior sealing performance with zero leakage for acid, alkali, and corrosive media. Corrosion Resistance: Lined with PTFE/F46/PFA/FEP to resist strong acids, bases, and oxidants. Full Bore Design: Almost no fluid resistance with high stability and rigidity. Customizable Colors: Colors can be customized according to customer requirements. Versatile Applications: Suitable for chemical, petroleum, metallurgy, and power industries. Multiple Lining Options: Available with PTFE, PFA, FEP, or EPDM linings for specific media. Flexible Driving Modes: Supports manual lever, worm gear, or pneumatic operation.