... 150lb ceramic knife gate valve Apply to such as ash, mud slag, coal slurry, pulp, sewage of solid, liquid-solid ,gas-solid two-phase ... medium conveying system in the pipeline switching valves,such as heavy ... , CF3, CF3M, CF8C, CN7M,etc.2. Knife: SS304 / 304L/ SS316/ 316L /WCB / LCB / WC9 and so on.3. Stem: 304/ 316/ Cr13 ...