... over voltage, over current, phase lacking, overheat ,liquid level ,over pressure, power failure, oil lacking ,incorrect operation ... DL 423 method4Cleanliness (NAS level)≤5According to SD313 MethodOrder information:Item Art. No. VOF 30 1 setMore Models & ... )mm25324050Dimensions(cm)L115120150185W7585100120H145160165185Weight(Kg)260300500900 Model VOF 30 High Efficiency Vacuum Oil Filtration System