Brightech™ One PC Cast Ductile Iron, Bi-directional, Quarter Turn, Full Flow Efficient, Manually Wrench Operated Taper Plug Valve. Lining Specificationss OTHER LINING MATERIAL We offer other lining materials like PTFE, ETFE, ECTFE, PVDF, PP, HDPE LINING THICKNESS Min. 3.0mm/4.0mm overall SPARK TEST Body liners & all wetted parts are spark tested at 20,000 Volts The body material is generally Cast Ductile Iron Alternatively we offer completely CF8 / CF8M Body and Ball.Our Specialty: We offer fully Jacketed lined plug valve