Water separator filter is mainly for oil - water liquid separation design, which contains two kinds of filters, namely: poly filter and separator filter. For example, in oil after water removal system, the oil flows into the coalescer, first flows through the coalescence filter, coalescence filter solid impurities removed by filtration, and the small water droplets to coalesce into larger droplets. After most of the coalesced drops by gravity from the oil can be separated and removed, settling into the sump. Then they flow through the oil separator filter, since the separation filter has good lipophilic hydrophobic, whereby further separation of water, the final, clean, dry oil outflow coalescer. First by the lower portion of the inlet tube into the oil filter housing, and then flows through the filter element from the outside, then the coarse particles will immediately settle down, discharged from the drain valve, the smaller particles are filter *. After the last of the oil through the filter clean collection trays, flowing out from the outlet pipe coalescer, was treated with increasing amount of oil, contaminants deposited on the filter coalescer will cause increased pressure differential. When the pressure rises to 0.15Mpa, indicating coalescence filter is clogged and should be replaced. Oil from the coalescer oil inlet flow into the tray level, and then split in level inside the filter, filtered, emulsion breaking, water molecules grow, coalescence process, the level of impurities trapped in the filter, coalesced drops settling in the sedimentation tank, oil filter from the outside into the secondary, bringing together in the second tray from the coalescence separator outlet flow. Two filter material is hydrophobic, oil can pass, free water filters were blocked in addition to the inflow sedimentation tank, by putting dirty valve. www.cllvcai.com