... medium piping system for coal preparation plantPneumatic 150lb ceramic knife gate valve features:1, seal by structural ceramics, can prevent solid ... ,API598; ISO5208 Material for main parts of 150lb ceramic knife gate valve1. Body: WCB, WCC, LCB, LCC, WC6, WC9, C5, ... BS, ANSI , DIN, AS, ISO, JIS,SANS etc Material cast iron, ductile iron, cast steel, stainless steel ( 304/CF8, 316/CF8M, 304L/CF3, 316L ...