PE pipe underground for mining

2018/07/20


Plastic (PE) pipes in coal mining

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Pressure grade: the nominal pressure of the water supply and drainage, pressure ventilation and spraying pipes in coal mining is 0.4MPa~1.6 MPa; the maximum nominal pressure of methane gas drainage pipes is -0.097MPa.

Specification and model: dn20mm~dn1200mm

Executive standards: MT558.1-2005 Plastic Pipes in Coal Mining — Part 1: Polyethylene Pipes and MT181-1988 Code for the Test on Plastic Pipe Safety Property for Coal Mining.

Specification and dimension: the nominal pressure, specification and dimension of water supply and drainage (KS), pressure ventilation (KF) and spraying (KJ) pipes in coal mining meet the requirements in tables 1 and 2.


 

nominal pressure, specification and dimension of PE80 plastic (PE) pipes in coal mining


dn/mm

en/mm

Standard size ratio

SDR33

SDR21

SDR17

SDR13.6

SDR11

MPa

0.4

0.6

0.8

1

1.25

20

/

/

/

/

2.0

25

/

/

/

/

2.3

32

/

/

/

/

3.0

40

/

/

/

/

3.7

50

/

/

/

/

4.6

63

/

/

/

4.7

5.8

75

/

/

4.5

5.6

6.8

90

/

4.3

5.4

6.7

8.2

110

/

5.3

6.6

8.1

10.0

125

/

6.0

7.4

9.2

11.4

140

4.3

6.7

8.3

10.3

12.7

160

4.9

7.7

9.5

11.8

14.6

180

5.5

8.6

10.7

13.3

16.4

200

6.2

9.6

11.9

14.7

18.2

225

6.9

10.8

13.4

16.6

20.5

250

7.7

11.9

14.8

18.4

22.7

280

8.6

13.4

16.6

20.6

25.4

315

9.7

15.0

18.7

23.2

28.6

355

10.9

16.9

21.1

26.1

32.2

400

12.3

19.1

23.7

29.4

36.3

450

13.8

21.5

26.7

33.1

40.9

500

15.3

23.9

29.7

36.8

45.4

560

17.2

26.7

33.2

41.2

50.8

630

19.3

30.0

37.4

46.3

57.2

710

21.8

33.9

42.1

52.2

64.6

800

24.5

38.1

47.4

58.8

72.7

900

27.6

42.9

53.3

66.2

81.8

1000

30.6

47.7

59.3

73.5

90.9

1200

36.4

57.2

70.6

88.2

109.1

 

nominal pressure, specification and dimension of PE100 plastic (PE) pipes in coal mining


dn/mm

en/mm

 Standard size ratio

SDR26

SDR21

SDR17

SDR13.6

SDR11

MPa

0.6

0.8

1

1.25

1.6

32

/

/

/

/

3.0

40

/

/

/

/

3.7

50

/

/

/

/

4.6

63

/

/

/

4.7

5.8

75

/

/

4.5

5.6

6.8

90

/

4.3

5.4

6.7

8.2

110

4.2

5.3

6.6

8.1

10.0

125

4.8

6.0

7.4

9.2

11.4

140

5.4

6.7

8.3

10.3

12.7

160

6.2

7.7

9.5

11.8

14.6

180

6.9

8.6

10.7

13.3

16.4

200

7.7

9.6

11.9

14.7

18.2

225

8.6

10.8

13.4

16.6

20.5

250

9.6

11.9

14.8

18.4

22.7

280

10.7

13.4

16.6

20.6

25.4

315

12.1

15.0

18.7

23.2

28.6

355

13.6

16.9

21.1

26.1

32.2

400

15.3

19.1

23.7

29.4

36.3

450

17.2

21.5

26.7

33.1

40.9

500

19.1

23.9

29.7

36.8

45.4

560

21.4

26.7

33.2

41.2

50.8

630

24.1

30.0

37.4

46.3

57.2

710

27.2

33.9

42.1

52.2

64.6

800

30.6

38.1

47.4

58.8

72.7

900

34.4

42.9

53.3

66.2

81.8

1000

38.2

47.7

59.3

73.5

90.9

1200

46.2

57.2

70.6

88.2

109.1



Note: The wall thickness with ★ is the reference wall thickness. The corresponding pipes are produced according to the company's internal control standards.

 

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