MESH COUNT
PER INCH
WARP x SHUTE 
WIRE DIAMETER
INCHES
WARP x SHUTE 
NOMINAL
MICRON
RETENTION 
PLAIN
DUTCH WEAVE 
12 x 64
24 x 110
30 x 150
30 x 160
40 x 200
50 x 250 
.023 x .0165
.015 x .0105
.009 x .007
.009 x .007
.007 x .0055
.0055 x .0045 
180
115
95
90
75
60 
TWILLED
DUTCH WEAVE 
20 x 250
30 x 250
80 x 700
165 x 800
165 x 1200
165 x 1400
200 x 600
200 x 900
200 x 1400
250 x 1370
250 x 1400
250 x 1620
325 x 1370
325 x 1700
325 x 1900
325 x 2300
325 x 2800
325 x 2400
400 x 2800 
.0036 x .008
.010 x .008
.004 x .003
.0029 x .0020
.0028 x .0016
.0028 x .0016
.0026 x .0018
.0020 x .0014
.0028 x .0016
.0022 x .0016
.0022 x .0016
.0022 x .0015
.0014 x .0012
.0014 x .0012
.0014 x .0011
.0014 x .0011
.0014 x .0010
.0012 x .0009
.0011 x .00078 
87
70
3035
25
19
14
26
23
10
8
8
78
7
6
5
5
4
24
2 
TYPE
(ABSOLUTE
MICRON RATING
WARP x SHUTE 
MESH COUNT
PER INCH
WARP x SHUTE 
AIR PERMEABILITY
Nm3/ha.20cm2
AT 2 mbar 
REVERSE
DUTCH WEAVE 
15  17
18  22
20  24
19  25
20  26
23  28
25  32
38  45
43  51
62  68
90  102
100  112
83  90
100  108 
1005 x 200
912 x 154
720 x 150
720 x 140
625 x 132
625 x 106
625 x 104
290 x 74
290 x 69
175 x 50
175 x 45
175 x 40
130 x 35
130 x 30 
1.25
5.00
6.50
3.10
3.30
3.60
3.80
11.80
12.40
13.80
14.10
14.90
11.40
16.80 
REVERSE TWILLED DUTCH WEAVE 
55  60
64  70 
400 x 120
325 x 39 
23.00
14.50 

PLAIN DUTCH WEAVE
Plain Dutch Weave is primarily
used as a filter cloth. The openings slant diagonally through
the cloth and cannot be seen by looking directly at the cloth.
This weave has a coarser mesh and wire in the warp direction
and a finer mesh and wire in the shute direction, giving a very
compact, firm mesh with great strength.
TWILLED DUTCH WEAVE
Twilled Dutch Weave offers higher
strength than regular Dutch weaves. It packs even more wires
in a given area. Generally, this weave has finer mesh counts
and lower flow than regular Dutch weaves and can be made to filter
particles as fine as 2 microns in diameter.
REVERSE DUTCH WEAVE
Reverse Dutch Weave is a filter
cloth in which the larger count of wires is found in the warp
and the smaller count in the shute, thus reversing the method
used in Plain and Twilled Dutch Weaves. The warp wires have a
smaller diameter than the shute wires and touch each other, while
heavier shute wires are woven as tightly together as possible.
The result is the strongest filter weave available because of
the semirectangular opening. It is exceptionally easy to clean
or backwash with no plugging. This filter cloth has an accurate
and uniform pore size.
