With the material that is compatible with the fire-resistant oil and dehydration in vacuum, new particle-filter for removing pollutant, the technique for absorption of the acid constituents in the treated oil, series of KYJ oil-purifier for fire-resistant oil are especially designed for the use of the fire-resistant oil. They have the functions of purifying and filtering the qualified fire-resistant oil in advance, re-purifying and re-filtering the slight pollutant fire-resistant oil, recyclable filtering the mid-degree pollutant fire-resistant oil. The series are the indispensable filter equipment when fire-resistant oil is having used. They can be applied to operate on-line, filter movable and add new oil, and extend the lifetime of fire-resistant oil, maintain security of the machine and save power. Features of Product 1. The plant is all made of stainless steel with features of handiness. nice appearance and easy operation. 2. The plant adopts the elements of vacuum adsorption which could eliminate the acid of water in the oil. 3. Oil level control adopt photoelectric way which the main components is imported from Switzerland and have features of sensitive control, exactitude. Spurting oil phenomena is never appeared. 4. The exacting filter assembly employee the specialized ones which have a good effect for impurity controlling (could reach the NAS 5-6 grade). It will satisfy client's using requirement.