Y type filter is an indispensable filter device for conveying medium pipeline system, Y type filter is usually installed in the pressure relief valve, pressure relief valve, constant water valve or other equipment inlet end, used to remove impurities in the medium, in order to protect the normal use of valves and equipment. Y-type filter has advanced structure, small resistance, convenient sewage and so on. Y filter applicable media can be water, oil, gas. Generally, the water network is 18~30 mesh, the ventilation network is 10~100 mesh, and the oil network is 100~480 mesh. Basket filter is mainly composed of pipe, pipe, blue filter, flange, flange cover and fasteners. When the liquid enters the filter blue through the main, the solid impurity particles are blocked in the filter blue, and the clean fluid is discharged through the filter blue and the outlet of the filter.