... oil purifier can be used to power equipments to vacuum drying, and vacuum oiling. Features: 1.Duplex-Stereo film evaporation technology, combined with ... water, gas from oil. 2. Multi-stage precision filtration system, mesh filtration combined with molecular adsorption technologies 3 ... easy and safely. 5. Adopts interlocked protective system, which connect oil pump, heater and liquid level sensor, ...