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How Mesh number of Metal Filter Influence Filtration Accuracy

There are always two ways to express the filtration accuracy of metal filters in the filtration industry. One general standard is “micron”, and the other is a more traditional expression – that is, the number of meshes, then what is the mesh number? How should the number of meshes and micrometers be converted? 

 

The term "mesh" refers to the number of wire holes per inch (25.4 mm). Mesh = 25.4 / [wire diameter (stainless steel wire size in stainless steel mesh) + aperture (stainless steel mesh size)].


Conversion of filtration accuracy and mesh count in the filtration industry, as shown in the following table:


 mesh μm mesh μm
2 8000 100 150
3 6700 115 125
4 4750 120 120
5 4000 125 115
6 3350 130 113
7 2800 140 109
8 2360 150 106
10 1700 160 96
12 1400 170 90
14 1180 175 86
16 1000 180 80
18 880 200 75
20 830 230 62
24 700 240 61
28 600 250 58
30 550 270 53
32 500 300 48
35 425 325 45
40 380 400 38
42 355 500 25
45 325 600 23
48 300 800 18
50 270 1000 13
60 250 1340 10
65 230 2000 6.5
70 212 5000 2.6
80 180 8000 1.6
90 160 10000 1.3
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