As a new type of filter material, sintered mesh originated from the high-tech materials used in aerospace energy in the 1960s, mainly to solve the ablation heat resistance and divergence of high-temperature gas turbine blades and liquid rocket engine injector panels. The cooling problem, gradually through the technical improvement of production and application, has developed into a new type of porous structure and functional material, which has a good role in maintaining the filtering effect. The filter material of this filter element is made of stainless steel mesh with special arrangement and vacuum high-temperature sintering. It has the characteristics of high precision, good strength and rigidity, small resistance, large flow rate, high cleanliness itself, convenient use, stable filter holes, and long service life. It can replace the bronze powder sintered filter element (the first generation valve filter).