Cast Ductile Iron Y Type, Solid Floating Disc Type, Renewable Seat, Inside Vessels Opening, Fully FEP/PFA Lined, Flush Bottom Tank ValveSize Range: 50mm X 40mm to 100mm X 80mm Lining Specification OTHER LINING MATERIAL We offer other lining materials like PTFE, ETFE, ECTFE, PVDF, PP,