SPW, Single Plain Dutch Weave

 

 

SPW Single Plain Dutch Weave
SPW Single Plain Dutch Weave
SPW Single Plain Dutch Weave, SPW with Double Warp Wires

Single Plain Dutch Weave

 

The weft wires are plain woven to lie as close as possible against each other in a linen weave.

The combined diameters of the weft wires within a section give about a 6 % increase in strength above the original values, due to the deformation of the wires.

 

SPW-filter cloth can also be woven with multilayer warp wires lying in parallel. This improves the micron retention.

1

2

3

4

5

6

7

8

9

 HB-Code

 Mesh

Micron
Retention 

Micron
Retention 

Equation Factors
for 

Tensile
Strength 

Porosity theor. 

Weight 

Cloth Thickness 

 

 

 nominal

 absolute

Permeability
Performance

Warp

Weft

 

 

 

 

 

μm

μm

Y

M

N

N

%

kg/m2

mm

SPW 34

80x300

25

32-36

3.78

0.06796

330

460

51

0.98

0.25

SPW 40

80x400

36

36-45

1.60

0.04908

310

430

55

0.82

0.23

SPW 45

2/50x250

30

42-48

8.88

0.04369

310

670

 

1.15

0.31

SPW 63

50x250

40

56-63

4.38

0.01851

310

640

61

1.00

0.32

SPW 71

50x280

45

71-75

4.39

0.01530

310

680

61

1.00

0.32

SPW 75

40x200

56

75-80

3.86

0.01297

320

730

59

1.30

0.40

SPW 100

30x150

63

100-112

3.83

0.00905

420

870

60

1.60

0.50

SPW 125

24x110

80

112-125

1.79

0.02748

930

1600

49

2.70

0.67

SPW 140

22x140

 

140-170

2.13

0.02561

570

980

60

2.10

0.66

SPW 160

20x160

 

160-180

3.57

0.00511

300

870

61

1.55

0.50

SPW 180

20x150

 

170-190

3.21

0.00621

260

1100

63

1.60

0.55

SPW 200

16x120

 

200-210

3.68

0.00019

280

1320

62

1.95

0.64

SPW 240

14x110

 

220-240

3.02

0.02103

390

1500

62

2.15

0.72

SPW 250

12x 95

 

240-260

3.81

0.00053

330

1440

63

2.30

0.79

SPW 260

14x 88

 

280-300

2.99

0.00300

640

1650

48

3.15

0.76

SPW 280

10x 90

 

270-290

3.16

0.01701

510

1750

66

2.50

0.93

SPW 300

12x 64

 

280-300

3.66

0.00026

750

2620

57

4.10

1.21

SPW 360

8x 85

 

330-350

3.11

0.00174

400

2100

66

2.50

0.93

Other specifications upon request

 

Notes on Table:

The following indications are based on approximate values. The actual permeability performance depends on the working conditions. For single applications it might be necessary to carry out a technical feasibility test.

Column 5: The equation for filter performance is in the form DP = Y . V + M . V2 [V = airflow in cm/sec, DP = differential pressure in mbar . 10-3 determined with air at 20C, 1013 mbar.

Column 6: Tensile strength in Newton (N) of wire weave section 10 mm wide, 100 mm long.

Column 8: Weight kg/m2, stainless steel 1.4301

 

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