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Summarize :

Weld processing for heating pipes, viwapico's pipe by handing heating machine:

1.Weld machine preparation work:

  • Pipe and fittings are connected by heating pipe at 260oC. Weld machine is set at 260oC
    And connect to 220V electrical source. At that time, the light of weld is red that means the weld machine is on. Please wait until the light is green that mean the weld machine temperature is ready for welding.

2. Pipe and fitting preparation for welding:

  • Measure the pipe with need length and cut by ceasor. The cut piece must be triagled with the pipe length..

  • Clean the pipe and make sure the pipe and fitting are no oil or dirty.

  • Measure the deep of fitting hole and mark the equivelent deep of pipe.

3. Pipe welding work

  • Hand the pipe and fitting to the welding heads of weld machine and holding for specifed time (time is calculated since the deep of pipe and fitting holes is inserted into weld head. The time is quite diffirent for the diffirent dimension of pipe. Please see the attached table)

  • After specified time take the pipe and fitting out (take it out straightly then insert pipe and fitting gently and tenderly, not slowly. Then the weld point will be fine and strong.

  • The position of pipe and fitting can be adjusted for moment right after the pipe and fitting is inserted (Please see the adjust time on the machine)

PPR Pipe Welding Standard

Temperature welding : 260oC

Pipe Diameter Depth welding Heating time welding time Adjustment time Cooling time

mm

mm

second

second

second

minutes

20

14

8

4

4

2

25

15

11

4

4

2

32

16.5

12

6

6

4

40

18

18

6

6

4

50

20

27

6

8

4

63

24

36

8

8

6

75

26

45

8

8

8

90

29

60

8

8

8

110

32.5

75

10

10

8

125

40

90

10

10

8

 

Wall thickness and mass*)
 

d

Pipe series (S)

20

26

12.5

8.3

5

3.2

2.5

2

Standard dimesion ratio (SDR)

s

mass
Kg/m

s

mass
Kg/m

s

mass
Kg/m

s

mass
Kg/m

s

mass
Kg/m

s

mass
Kg/m

s

mass
Kg/m

s

mass
Kg/m

10

.

.

.

.

.

.

.

.

.

.

.

.

1.8

0.046

2.0

0.050

12

.

.

.

.

.

.

.

.

.

.

1.8

0.057

2.0

0.062

2.4

0.071

16

.

.

.

.

.

.

.

.

.

.

2.2

0.095

2.7

0.110

3.3

0.128

20

.

.

.

.

.

.

.

.

1.9

0.107

2.8

0.148

3.4

0.172

4.1

.198

25

.

.

.

.

.

.

.

.

2.3

0.164

3.5

0.230

4.2

0.266

5.1

0.307

32

.

.

.

.

.

.

1.8

0.172

2.9

0.261

4.4

0.370

5.4

0.434

6.5

0.498

40

.

.

.

.

1.8

0.217

2.3

0.273

3.7

0.412

5.5

0.575

6.7

0.671

8.1

0.775

50

.

.

1.8

0.274

2.0

0.301

2.9

0.422

4.6

0.638

6.9

0.896

8.3

1.04

10.1

1.21

63

1.8

0.349

2.0

0.382

2.5

0.474

3.6

0.659

5.8

1.01

8.6

1.41

10.5

1.65

12.7

1.91

75

1.9

0.438

2.3

0.528

2.9

0.647

4.3

0.935

6.8

1.41

10.3

2.01

12.5

2.34

15.1

2.70

90

2.2

0.616

2.8

0.758

3.5

0.936

5.1

1.33

8.2

2.03

12.3

2.87

15.0

3.36

18.1

3.88

110

2.7

0.903

3.4

1.12

4.2

1.37

6.3

1.99

10.0

3.01

15.1

4.3

18.3

5.01

22.1

5.78

125

3.1

1.18

3.9

1.45

4.8

1.76

7.1

2.55

11.4

3.91

17.1

5.53

20.8

6.47

25.1

7.46

140

3.5

1.48

4.3

1.8

5.4

2.23

8.0

3.20

12.7

4.87

19.2

6.95

23.3

8.12

28.1

9.35

160

4.0

1.91

4.9

2.32

6.2

2.92

9.1

4.17

14.6

6.38

21.9

9.04

26.6

10.6

32.1

12.2

180

4.4

2.38

5.5

2.94

6.9

3.63

10.2

5.25

16.4

8.07

24.6

11.4

29.0

13.4

36.1

15.4

200

4.9

2.92

6.2

3.68

7.7

4.50

11.4

6.50

18.2

9.95

27.4

14.1

33.2

16.5

.

.

225

5.5

3.7

6.9

4.57

8.6

5.65

12.8

8.19

20.5

11.26

30.8

17.9

37.4

20.9

.

.

250

6.2

4.63

7.7

5.67

9.6

6.99

14.2

10.1

22.7

15.5

34.2

22.1

.

.

.

.

280

6.9

5.73

8.6

7.09

10.7

8.72

15.9

12.6

25.4

19.4

38.3

27.6

.

.

.

.

315

7.7

7.2

9.7

8.97

12.1

11.1

17.9

16.0

28.6

24.6

.

.

.

.

.

.

355

8.7

9.14

10.9

11.3

13.6

14.0

20.1

20.3

32.2

31.2

.

.

.

.

.

.

400

9.8

11.6

12.3

14.4

15.3

17.8

22.7

25.7

36.3

39.6

.

.

.

.

.

.

450

11.0

14.7

13.8

18.2

17.2

22.5

25.5

32.5

40.9

50.1

.

.

.

.

.

.

500

12.3

18.2

15.3

22.4

19.1

27.7

28.4

40.2

.

.

.

.

.

.

.

.

560

13.7

22.6

17.2

28.2

21.4

34.7

31.7

50.3

.

.

.

.

.

.

.

.

630

15.4

28.6

19.3

35.6

24.1

44.0

35.7

63.7

.

.

.

.

.

.

.

.

710

17.4

36.4

21.8

45.2

27.2

55.9

40.2

80.8

.

.

.

.

.

.

.

.

800

19.6

46.1

24.5

57.2

30.6

70.8

45.3

103

.

.

.

.

.

.

.

.

900

22.0

58.3

27.6

72.5

34.4

89.5

51.0

130

.

.

.

.

.

.

.

.

1000

24.5

72.0

30.6

89.2

38.2

110

.

.

.

.

.

.

.

.

.

.

1200

29.4

104

36.7

128

45.9

159

.

.

.

.

.

.

.

.

.

.

1400

34.3

141

42.9

175

53.5

216

.

.

.

.

.

.

.

.

.

.

1600

39.2

184

49

228

61.2

283

.

.

.

.

.

.

.

.

.

.

*) The mass has been caculated taking the everage density as 0.91 g/cm3 and the wall thickness as the nominal size plus half the tolerance specifed. For other densities, the mass shall be established by linear interpolation

 

Allowable working pressure for pipes made from PP- r80, with SF = 1,5*)
 

Temperature, in  oc

Years of service

Pipe series (S)

20

16

12.5

8.3

5

3.2

2.5

2

Standard dimesion ratio (SDR)

41

33

26

17.6

11

7.4

6

5

allowable working pressure, in bar

10

1

5

10

25

50

100

5,3

5,0

4,9

4,7

4,6

4,5

6,7

6,3

6,1

5,9

5,8

5,6

8,4

7,9

7,7

7,4

7,2

7,1

12,7

12,0

11,6

11,2

10,9

10,7

21,1

20,0

19,3

18,7

18,2

17,7

33,4

31,6

30,6

29,6

28,8

28,1

42

39,8

38,5

37,3

36,3

35,4

52,9

50,1

48,5

46,9

45,7

44,5

20

1

5

10

25

50

100

4,5

4,2

4,1

4,0

3,9

3,8

5,7

5,4

5,2

5,0

4,9

4,7

7,2

6,7

6,5

6,4

6,2

6,0

10,8

10,2

9,9

9,6

9,3

9,0

18,0

16,9

16,4

16,0

15,5

15,0

28,6

26,8

26,1

25,3

24,5

23,8

36,0

33,8

32,8

31,8

30,9

29,9

45,3

42,5

41,3

40,1

38,9

37,7

30

1

5

10

25

50

100

3,8

3,6

3,5

3,4

3,3

3,2

4,8

4,5

4,4

4,2

4,1

4,0

6,1

5,7

5,5

5,3

5,2

5,1

9,2

8,6

8,4

8,1

7,9

7,7

15,3

14,4

13,9

13,4

13,1

12,8

24,3

22,8

22,0

21,3

20,7

20,2

30,6

28,7

27,7

26,8

26,1

25,5

38,5

36,1

34,9

33,7

32,9

32,1

40

1

5

10

25

50

100

3,2

3,0

3,0

2,8

2,8

2,7

4,1

3,8

3,7

3,6

3,5

3,4

5,1

4,8

4,7

4,5

4,4

4,3

7,8

7,3

7,1

6,8

6,6

6,4

12,9

12,1

11,8

11,3

11,0

10,7

20,5

19,2

18,7

18,0

17,5

16,9

25,8

24,2

23,6

22,6

22

21,3

32,5

30,5

29,7

28,5

27,7

26,9

50

1

5

10

25

50

100

2,8

2,6

2,5

2,4

2,3

2,2

3,5

3,2

3,1

3,0

2,9

2,8

4,4

4,1

3,9

3,8

3,7

3,6

6,6

6,1

6,0

5,8

5,6

5,4

11,0

10,2

9,9

9,6

9,3

8,9

17,5

16,2

15,7

15,2

14,7

14,2

22

20,4

19,7

19,1

18,5

17,8

27,7

25,7

24,9

24,1

23,3

22,5

60

1

5

10

25

50

2,3

2,2

2,1

2,0

1,9

2,9

2,7

2,6

2,5

2,4

3,7

3,4

3,3

3,2

3,1

5,6

5,2

5,0

4,8

4,6

 

9,3

8,6

8,3

8,0

7,7

14,7

13,7

13,2

12,6

12,1

18,5

17,2

16,6

15,9

15,3

23,3

21,7

20,8

20,0

19,2

70

1

5

10

25

50

2,0

1,8

1,8

1,5

1,3

2,5

2,3

2,2

1,9

1,6

3,1

2,9

2,8

2,4

2,0

4,7

4,3

4,2

3,6

3,1

7,8

7,2

7,0

6,1

5,1

12,4

11,4

11,1

9,6

8,1

15,6

14,3

14,0

12,1

10,2

19,6

18,0

17,6

15,2

12,8

80

1

5

10

25

1,6

1,4

1,2

1,0

2,1

1,8

1,5

1,2

2,6

2,3

1,9

1,5

3,9

3,5

2,9

2,3

6,5

5,7

5,8

3,8

10,4

9,1

7,6

6,1

13,1

11,5

9,6

7,6

16,4

14,4

12,0

9,6

90

1

5

(10)1)

1,2

.

.

1,5

1,0

.

1,8

1,2

(1,0) 1)

2,8

1,8

(1,5) 1)

4,6

3,0

(2,6) 1)

7,3

4,8

(1,0) 1)

9,2

6,1

(5,1) 1)

11,6

7,6

(6,4) 1)

1) the bracketed values apply where testing can be shown to have been carried out for longer than one year at 110 0C

 

Fittings

The Fittings VIWAPICO are manufacted in line and technology of Federal republic of Gemany,meets all the demand of quality works of investors. 

  • Socket :
    - Socket is used to connect pipes of diffirent lengths. 

  • Elbow  90o
    - Elbow 90o is used to connect the pipes which are installed by 90o zigzac direction.

  • Male insert elbow 90o
    - It is used to connect water pipe system with water equipement such as lavabo, shower, etc. 

  • Tee
    - It need to have a support
    - IT need to have and other support supply when devinding 

  • Male insert Tee
    - Male insert Tee connects water supplying system with other pipes.

 

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Quang Minh Industrial Zone-MeLinh-Vinh Phuc * Tel: (04).584.0986 * Fax: (04).584.0982 * Email: viwapico@yahoo.com