Distinguish the performance of PES folding filter element
PES fold filter element under its nominal pressure effect, the gas leakage rate should be no more than 1× 10-4pA ·m3/S. The o-ring between the filter element and the shell may leak when the compact test element is used instead of the traditional filter element. The leakage pressure is generally 5 times of the rated pressure of the filter element, which can be up to 8 times. When the fluid passes through the filter without the filter element at the rated flow rate, the pressure difference between the inlet and outlet should be 0. If it is greater than 0, the pressure difference of the shell under the corresponding flow rate should be subtracted when testing the pressure difference of the filter element.
Distinguish the features of a stainless steel fiber felt folded filter, the main consideration bubble point, the differential pressure flow characteristic, precision and environmental carrying capacity, strength of several objectives, the bubble point pressure value should not be less than 90% of the bubble point pressure value of the filter material, the differential pressure flow characteristic, when the oil temperature at 30 ℃, rated differential pressure is 0.15 Mpa, fluid state to regulate air, rated differential pressure should be 200 pa accuracy is an important criterion of the PES folded filter determines whether it can achieve its purpose, to ensure filter structure in good condition, enough accuracy depends on the precision of the filter material. The pollutant capacity of the filter element is equal to the product of the pollutant capacity per unit area and the filtration area, which is related to the pressure difference of the actual operation of the filter element.
The strength is ensured by the SKELETON of PES folding filter element. The filter element with sufficient strength will not be deformed, damaged or dropped when used. Fluid pressure strength refers to the fluid pressure drop that can be sustained during operation, generally not greater than the internal leakage test pressure. Axial load strength refers to the ability to withstand normal assembly and disassembly without deformation of the filter element.