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We all know that stainless steel filter elements can be divided into a variety of specifications according to the filter material, so what are the differences in the inspection standards of stainless steel filter elements of different filter materials? HNST Warner Worldcom xiaobian to take you to understand.
Stainless steel sintered felt filter core is a kind of porous depth filter material made of stainless steel fiber sintered at high temperature. The corrugated filter element made of it has the characteristics of high porosity, large filtration area, strong sewage absorption capacity and strong reuse. Stainless steel folding filter element is also made of stainless steel wire woven, its corrugated filter element has good strength, not easy to fall off, easy to clean, high temperature resistance, economic use and other characteristics. Application range: mainly used for high polymer and medicine, hydraulic oil, water treatment, high temperature gas and other media filtration. Stainless steel folded filter element under the action of its nominal pressure, with dense test pieces to replace the traditional filter element, detection of the o-ring between the filter element and the shell may leak. The leakage pressure is usually 5 times the rated pressure of the filter element, and up to 8 times. When the fluid passes the filter without the filter element installed at the rated flow rate, the inlet and outlet pressure difference 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. Judge a stainless steel fiber felt folded filter, the performance of main consideration first bubble point, the differential pressure flow characteristic, precision and environmental carrying capacity, strength of several indicators, the value of the first bubble point pressure filtration material should not be less than 90% of the value of the first bubble point pressure, differential pressure flow characteristics, when the oil temperature at 30 ℃, rated differential pressure is 0.15 Mpa, fluid as the standard state of the air, The rated pressure difference should be 200Pa precision is the most important standard for a stainless steel folded filter element, which determines whether it can achieve its purpose. When ensuring the structure of the filter element is complete enough, the precision depends on the precision of the filter material. Pollutant absorption refers to the amount of pollutants to accommodate, filter can intercept pollutants, but can not be directly removed from the system, pollutants can only stay inside the filter element, the pollutant capacity of the filter element is equal to the product of pollutant absorption per unit area and filter area, and it is related to the actual use of the differential pressure of the filter element. The strength is guaranteed by the skeleton of the stainless steel folded filter element. The filter element with sufficient strength is not deformed, not damaged, and no filter material falls off. Fluid pressure intensity refers to the maximum fluid pressure drop that can be sustained while operating, usually no greater than the internal leak test pressure. Axial load strength refers to the force that can accept normal assembly and disassembly without deforming the filter element. Fatigue strength refers to the fatigue resistance of the filter element subjected to impact, vibration, flow pulse and other effects when working. Stainless steel folding filter element has good filtration performance, but the structure and characteristics of stainless steel folding filter element we know? Stainless steel folding filter structure: stainless steel folding filter is widely used in environmental protection, petroleum, chemical, medical and high temperature gas filtration.
Stainless steel sintered mesh filter element is generally a five-layer structure, which is divided into four parts: protective layer, filter layer, separation layer and support layer. This kind of filter material has both uniform and stable filtering accuracy and high strength and stiffness. It is an ideal filter material for the occasion of high compressive strength and uniform filtering particle size. Because its filtering mechanism is surface filtering, and the mesh is smooth, so it has excellent backwashing regeneration performance, can be used repeatedly for a long time, especially suitable for continuous and automatic operation process, is no comparison of any kind of filtering material. The sintered mesh material is easy to form, process and weld, and can be processed into circular, cylindrical, conical, corrugated and other forms of filter elements.
Stainless steel folding filter characteristics: stainless steel folding filter high porosity, can be filtered on the tiny impurities, when the stainless steel filter folded after the filtration area becomes larger to accommodate more dirt, the same for high viscous liquid filtration it can also play a good role. Stainless steel folding filter element generally has 5 layers of structure, from inside to outside for polypropylene inside and outside the framework, the middle three layers for the filter layer, because the material of the filter layer determines the filtering effect, so the general filter layer selected material is more fine. Stainless steel folding filter element plays a very important role in filtering, plays a very important role, its emergence provides a lot of convenience for our life. The characteristics of stainless steel folding filter element stainless steel folding filter element has good filtration performance, the filter particle size of 2-200um can play a uniform surface filtration performance; Corrosion resistance, heat resistance, pressure resistance, wear resistance; And can be repeatedly washed and long service life; Stainless steel filter pores uniform, accurate filtration accuracy; Large flow per unit area of stainless steel filter element; Stainless steel folding filter is suitable for low temperature and high temperature environment; After cleaning, it can be reused without replacement. Because stainless steel folding filter element has a lot of excellent performance.
The above is the different inspection standards of stainless steel filter elements of different filter materials. I hope that the above introduction will be helpful to everyone.