Nsh vfd (oil purifier, oil regeneration, oil purification, oil purify, oil recovery, oil processing, oil filtering, oil filtration, oil treatment, oil recycling, oil restoration, oil disposal, oil reclamation).\r\n\r\nseries is mainly used to improve the properties of insulation oil. it can remove 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 oil filtration series is specialized in purifying branded oil, insulating oil of high voltage and super high voltage transformer. additionally, it is suitable for treating low viscosity lubrication oil.