DTW, Dutch Twilled Weave

 

 

DTW Dutch Twilled Weave
DTW Dutch Twilled Weave
DTW Dutch Twilled Weave, DTW with Double Warp Wires

Dutch Twilled Weave

 

The weft wires in a twilled weave are laid together as closely as possible, whereby one weft wire lies above and the next below the warp wire in each case.

 

The sum of the diameters of the weft wires inside a section gives a value 5 15 % higher than that corresponding to the double value for the section.

For the same diameter, DTW has twice the number of weft wires as SPW cloth in a plain weave.

 

DTW cloth can also be woven with multiple warp wire layers, to increase 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

DTW 4

425x2800

< 1

5-6

231.47

0.22829

75

335

25

0.36

0.06

DTW 6

375x2300

1

6-7

210.93

0.07449

150

320

39

0.39

0.08

DTW 8

325x2300

2

7-8

172.55

0.15155

140

330

34

0.47

0.09

DTW 9

260x1550

3

8-10

151.00

0.18407

200

420

29

0.68

0.12

DTW 10

250x1400

4

11-12

126.93

0.15665

190

480

29

0.68

0.12

DTW 12

200x1400

5

11-13

84.85

0.11646

220

480

33

0.75

0.14

DTW 14

130x 700

8

13-15

168.33

0.49690

390

640

28

1.60

0.28

DTW 16

200x1120

9

15-17

127.17

0.21465

240

600

25

0.95

0.16

DTW 18

165x1400

10

15-18

44.08

0.07645

200

510

41

0.70

0.15

DTW 20

165x1100

12

20-21

68.19

0.11284

220

620

29

0.90

0.16

DTW 36

80x 700

25

34-36

25.81

0.10202

210

860

42

1.20

0.26

DTW 71

40x 560

50

71-80

13.91

0.06452

240

1300

45

1.70

0.39

DTW 95

30x 360

80

95-106

6.12

0.02134

560

1650

39

2.60

0.54

DTW 100

30x 250

 

100-112

1.60

0.17216

520

2340

38

3.20

0.65

DTW 106

20x 260

 

100-120

2.16

0.11361

290

2200

42

3.10

0.67

DTW 112

28x 560

 

106-112

1.06

0.01124

550

1420

47

1.95

0.46

DTW 118

24x 300

 

112-118

1.80

0.12094

390

2040

43

2.85

0.63

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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