Small size SR-STO-5 high vacuum transformer oil purifier delivered to user

This is a small portable vacuum transformer oil filter machine (SR-STO-5 model, 300L/h). It is specially equipped with moisture in oil sensor and dispayer convenient for user to monitor the moisture content in oil. 
SR-STO series oil filtration machines are usually ordered by users for effective dehydration, degasification, filtration and recovering the breakdown voltage of oil in small transformers.