FREE-VALVE brand Electro hydraulic operated ceramic lined knife gate valves are suitable for the conveying system with liquid-solid or gas -solid two-phrase medium , such as tailing system in mining,coal -water slurry ,ash, mine residue and coal residue in coal washing plant ,iron & steel plant or ash conveying system of power plant , paper pulp in paper industry, sewage and slurry in decontamination plant ,especially useful for the heavy medium system of coal mill.
