MAGNETS

Fractional Inches
Microns
Mesh
-
25
-
-
37
400
-
50
300
-
75
200
-
100
150
-
125
115
-
149
100
-
177
80
-
250
60
-
280
50
-
406
40
-
500
-
-
533
30
-
750
-
-
838
-
-
840
20
-
1000
16
1/32
1143
-
-
1190
14
-
1410
12
3/64
1500
-
-
1575
-
-
1680
10
-
2000
9
1/16
2380
8
-
2388
-
-
2790
7
-
3000
-
3/32
3175
-
-
3330
6
-
4000
5
1/8
4700
4
-
4763
-
-
5000
-
-
6000
-
1/4
6350
-
-
6700
3

MAGNETS 

Can be used to add additional strength and durability to the filter elements when straining conditions have higher than normal pressure drops. 

FORMULA: 

1. Choose the size perforation or mesh needed to remove particles from the media passing through the strainer.

2. Multiply the TOTAL SCREEN AREA by the PERCENT OF OPEN AREA of the screen. The result equals the OPEN AREA of the screen.

3. Divide the OPEN AREA of the screen by the Crossectional inside area of the pipe to give the ratio of net free area of the screen to the pipe. 

EXAMPLE :  

+ Y Strainer with a 40 mesh 304 stainless steel screen 36.23 ( total screen area in 2) x.41(40 mesh = 41% open area) 14.8543 (total open area of screen)4763 14.8543 / 3.356 (inside area of 2 pipe5000) = 4.426:1 ( Ratio of net free straining area)  

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