... base, filer plate, tension bolt, oil pump and pre-filter is used to reduce the impurities going into oil pump ... clothe, and coming out from the pipe under the filter plate, while the oil dreg remains on the surface ... filtering clothe, realizing the filtering operation.6LB-250NO.of filter platesDimensions of filter plateWorking pressureProduetivityPowerDimensionsWeight17Peices250×250 (mm)0.5 MPa50-100 ...