... medium piping system for coal preparation plantPneumatic 150lb ceramic knife gate valve features:1, seal by structural ceramics, can prevent solid ... circulation without stumbling block. There isblowing equipment, so it not easy to block ash and deposition. 3, The valve is sealed ... ,API598; ISO5208 Material for main parts of 150lb ceramic knife gate valve1. Body: WCB, WCC, LCB, LCC, WC6, WC9, C5, C12 ...