For improving transformer oil dielctric strength and keeping absolutely clean and dry, series ZYD double stages transformer oil filtration machine adopts double stages vacuum dehydration and degasification system, it equips vacuum pump, booster pump, precise filter elements and unique- designed two horizontal vacuum chambers, which can quickly remove water, trace water, gas, particles as well as acetylene, hydrogen, methane and other harmful ingredients from oil. ZYD vacuum transformer oil filtration machine is specially suitable to purify high-grade transformer oil, super-voltage transformer oil and new transformer oil of more than 110KV substation