ZJB series specialize in the electric power profession、 the large-scale industry and mining enterprise to 220KV below power transformer equipment insulating oil purification processing, also available in hydraulic fluid, lubrication oil purification processing. It can remove in the oil highly effective the moisture content, the gas and the impurity particle, enhances the insulation strength and the quality quality of oil. Guaranteed the electrical equipment the safe operation, and makes concrete to the electrical equipment hot oil circulation dry and functions and so on vacuum oil injection, vacuum pumping air.