Filter transformer oil My company has three oil filters, the first is asmall LY series of pressure plate LY series, just a simple filtration ofimpurities have oil pumping function. User requirements for oil filtration isnot high, you can choose some models of oil filter. The second paragraph is theZY series of high efficiency vacuum oil filter, some of the oil filter ismainly for transformers below 110KV transformer oil filter. The highestpressure value can reach 60KG, the third paragraph is ZYD series of high efficiencytwo-stage vacuum oil filter, this section is mainly for the 110KV transformeroil filter inside the transformer oil. According to the different needs ofcustomers choose different types of oil filter.