HOWARD WIRE CLOTH CO.
DUTCH WEAVE FILTER CLOTH

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
30-35
25
19
14
26
23
10
8
8
7-8
7
6
5
5
4
2-4
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 semi-rectangular opening. It is exceptionally easy to clean or back-wash with no plugging. This filter cloth has an accurate and uniform pore size.

Any Questions? Give Us A Call.

HOWARD WIRE CLOTH CO.
28976 Hopkins St. Ste.A
Hayward, CA 94545-5096
Google Map
Phone 510.887.8787
Toll Free 800.969.3559
Fax 510.786.4167
E-mail: sales@howardwire.com

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