... designed for filtering the unpurified new oil, such as transformer oil, instrument transformer oil, circuit breaker oil ... techniques and devices, high performance multiple protections, such as overload, over voltage, over current, phase lacking, ... Diameter(D)mm25324050Dimensions(cm)L115120150185W7585100120H145160165185Weight(Kg)260300500900 Model VOF 30 High Efficiency Vacuum Oil Filtration System