Y-type filters, the use of hydraulic control valves and precision mechanical products easy to plug must have filtration equipment. Usually installed in the inlet end of the hydraulic control valves and other equipment to prevent particulate impurities into the channel, causing blockage of the valve or other equipment failure and can not work properly. Y-type filter structure is simple, small flow resistance, available online exclude dirt without dismantling. Y-rod telescopic filter also has installed its length is adjustable, easy assembly and disassembly features. May need to set the filter mesh, typically in the range: 18-30 mesh water vapor 40-100 mesh, 100-480 mesh oil.