Zla series double-stages high efficiency vacuum oil purifier Zla series double-stages vacuum high efficiency vacuum oil purifier is special equipment for dehydration, degassing, purification process of various kinds of insulating oils in electrical transformers and circuit breakers etc. It is designed on vacuum drying principle, coalescence and separation technique, accurate fine filtration and other wanmei patented technique. Application Zla series transformer oil purifier is widely used in purification of all kinds of insulating oil, especially the fine purification treatment of high-grade new oil, imported oil and super-voltage transformer oil. It can be used for onsite operation in over 110kv transformers, especially even in high-latitude areas. Zla series transformer oil purifier also can be used as dehumidification equipment for a variety of electric facilities. And it is widely used for oil filling for transformers and circuit breakers under vacuum condition. It is also suitable for high-efficiency purification process for other low-viscosity lubricating oils.