Y-shaped filter is the essential filtering unit used in the media-conveying pipeline system, is usually installed at the inlet of pressure-reducing valve, pressure-relief valve, float control valve or other equipment for clearing the impurities in the media so as to protect the normal use of valves and equipments. It has the features of advanced structure, small resistance and convenient for waste discharging. It is applicable for the medium like water, oil or gas with the general water passage net is 18~30 meshes, the gas net is 10~100 meshes and the oil net is 100~480 meshes. The basket filter mainly consists of connection pipe, master pipe, filter basket, flange, blind flange and fasteners. When the liquid passes through master pipe and enters the filter basket, the solid impure particle will be blocked in the basket while the clean liquid will be discharged from the outlet of the filter via filter basket.