LY series of plate pressure oil purifier is designed primarily to filter water and particles from transformer oil, turbine oil, aviation hydraulic oil for use in power stations, power plants, industrial and mining enterprises substations, lubricants warehouses, tractor stations, petroleum, chemical, metallurgy, defense and other units. The purifier is installed with filter bed, oil pump, filter, etc. The filter paper or filter cloth is fixed between the filter places and filter frame and is used as filtering medium to form a separate filtration compartment playing the role of oil purification.