Double-Stage High-Efficiency Vacuum Insulation Oil Purifier series is mainly used to improve the properties of insulation oil. It can remove trace water, gas, particulate matters etc. from the insulating oil effectively and rapidly so as to boost performance of transformers, circuit breakers, mutual inductors, cable and capacitors which has insulation system. VFD series specialize in purifying branded oil, insulating oil of high voltage and super high voltage transformer. Additionally, it is suitable for treating low viscosity lubrication oil. Advantage High vacuum pressure and high flow rate. This product makes bridge with the electric equipments. Vacuum, filtration and oil injection can work independently and also they can work together. As the oil purifying nanotechnology, this machine can treat oil more quickly and more completely, and makes the oil limiting voltage-withstand value. sinonsh123 sino-purification com