800-221-0392
160 Fornelius Ave. Clifton, NJ 07013
Tel: 973-778-4478 Fax: 973-778-4481
 

Filter Cloth

Woven metal wire cloth has been used for filtration applications for years. Filter Cloth mesh specifications offer improved results when used in liquid filtration applications. Filter Cloth's unique geometry calls for two differentwire diameters; a heavier one to support the load in one direction and smaller running in the other direction drivenup close to each other to set the aperture size of the mesh. The shape of the resulting opening is not a straightthrough square opening as it is when using a Square Weave, the irregular shaped opening captures particles and allows for cleaning of the filter cloth. The different Filter Cloth weave types provide for different characteristics ofthe mesh being considered.

Type of Weave Mesh Count Wire Dia. Absolute Filter Rating Nominal Filter Rating
     (inches) (microns) (microns)
PLAIN DUTCH WEAVE
Plain Dutch Weaves can handle high flow rates with relatively low pressure drop.  They are woven with each warp and shute wire passing over-and-underone wire.  The shute wires, however, are smaller indiameter than the warp wires and are driven closetogether to create a dense weave.  This weave producesa strong filter cloth with good flow rates which makes it useable for high pressure filtration
80 x 400 .0049 x .0028 40 - 45 35
50 x 250 .0055 x .0045 58 - 63 40
40 x 200 .0070 x .0055 70 - 75 55
30 x 150 .0090 x .0070 95 - 100 65
24 x 110 .0150 x .0100 115 - 125 80
20 x 150 .0098 x .0070 150 - 160 100
14 x 88 .0200 x .0130 220 - 240 150
12 x 64 .0240 x .0165 270 - 290 200
8 x 85 .0140 x .0126 320 - 340 250
TWILL DUTCH WEAVE
The finest wire cloth particle size retention is achieved inTwill Dutch Weaves.  As the term Twill indicates, the warp and shute wires pass alternately over two and under twowires.  The term Dutch refers to the use of a heavier warp wire diameter and a lighter shute wire diameter.  There aretwo variations of this weave:  Twill Dutch Double Weave andTwill Dutch Single Weave.  The shute wires in a Twill DutchDouble Weave are positioned so close that there is always ashute wire above and below each warp wire.  This creates aweave completely covering the warp wires.  The resultinggeometry of the flo-path is very tortuous, providing excellentparticle size control.  In a Twill Dutch Single Weave the shute wires are not as close together as in the Twill Dutch Double.
510 x 3600 .0010 x .0006 5 - 6 <1
450 x 2750 .0010 x .0008 6 - 7 <1
325 x 2300 .0015 x .0010 8 - 9 2
250 x 1400 .0022 x .0016 11 - 12 4
200 x 1400 .0028 x .0016 12 - 14 5
165 x 1400 .0028 x .0016 16 - 18 10
165 x 800 .0028 x .0020 24 - 26 15
200 x 600 .0024 x .0018 28 - 32 20
80 x 700 .0040 x .0030 35 - 38 25
120 x 600 .0040 x .0025 40 - 45 30
120 x 400 .0040 x .0025 50 - 55 40
40 x 560 .0070 x .0040 70 - 75 50
30 x 360 .0098 x .0060 90 - 100 80
20 x 250 .0098 x .0079 110 - 120 100
REVERSE PLAIN DUTCH WEAVE
The warp and shute wires are reversed from those in a PlainDutch Weave and Twill Dutch Weave.  The warp wires have a larger count and the shute wires are count less, hence thewarp wires are smaller in diameter than the shute wires.  Thisweave type is very strong, has a high flow rate, and is exceptionally easy to clean or back-wash. 
850 x 155 .0012 x .0039 14 - 17 10
720 x 150 .0014 x .0043 18 - 21 15
600 x 125 .0017 x .0049 23 - 26 20
600 x 100 .0017 x .0055 35 - 38 25
280 x 70 .0035 x .0083 54 - 60 45
400 x 125 .0026 x .0039 56 - 62 50
175 x 50 .0057 x .0120 65 - 72 60
130 x 35 .0079 x .0157 95 - 105 80
140 x 40 .0075 x .0150 110 - 125 100