Application The machine is special for treating the used and old transformer oil, mutual oil, switch oil. Comparing with the single stage type, this machine adopts the double stages vacuum system, which can improve the machine working vacuum value highly, so it can remove the water, gas and impurities in insulation oil high-efficiently, increasing the pressure force and quality of oil, make sure the electric device running safely. The machine is specially applied to vacuum filling oil and drying for power transmission equipment that are over 110kv. Feature 1. Ph of treat oil5.5 2. Acid value0.03mgkoh/g 3. Flash point145 4. Anti-pressure¥60kv 5. Dielectric loss: dielectric loss: tg (90°c)%0.001 6. High vacuum: high point-vacuum5pa; working-vacuum35pa 7. High absorption speed: absorption speed power333l/sr. 8. Duplex 3d stereo-evaporation, eliminating the liquid water quickly 9. Uk g technology, by which the trace water that is show chain, such as dissolved water, can be removed effectively 10. Instinctively removing impurities system filtering through the double fh trapezoidal network and absorbing by high polymer without mechanical power 11. Argon fiber infrared heating system that can make the oil contain zero sum of ethyne after the treatment.