Description -Body Material: Cast Iron and Steel (A216 WCB, WCC, LCB, LCC, WC6, WC9), Ductile Iron, Stainless Steel [SS316, SS304, SS316L, SS904L, CF8, CF8M, F304, F316, F31L, F51, F3, F55, F91] , WCB, WC6, SS304, SS316, DUPLEX STEEL. -Class : 150 – 2500, PN 10 – PN 450 -Size : ½ – 24” -Ends- Butt welded, Socket welded, Flanged, Threaded https://valvesonly.com/product-category/steam-safety-valve/