Ball Valve Material: Carbon Steel, Cast Iron, Ductile Iron, Stainless Steel ( 316/ L & 304/ L) . Rating Class: 150# , 300# , 600# , 900# , 2500# , 3000# , 6000# JIS 10K, 20K PN 10, PN 16, PN 20 Size: 2" - 24"