DN(mm) Đường kính noninal

D(mm)
Đường kính ngoài danh nghĩa

Độ lệch đường kính ngoài

PN0.4MPaS+ S + lệch lạc

PN0.6MPaS+ S + lệch lạc

PN0.8MPaS + S + lệch lạc

PN1.0MPaS +S + lệch lạc

20

25

±0.3

2.0+0.4

2.1 + 0.4

25

33

±0.3

1.7+0.4

2.2+0.4

2.7 + 0.5

32

42

±0.4

2.1 + 0.4

2.8 +0.5

3.4 + 0.5

40

50

±0.5

2.0+0.4

2.6 + 0.5

3.4+0.6

4.2 + 0.6

50

63

±0.5

2.3+0.5

3.3 + 0.6

4.3 +0.7

5.2+0.7

65

75

±0.7

2.7 + 0.5

3.9+0.6

5.1 + 0.8

6.2 + 0.9

80

90

±0.9

3.2 + 0.6

4.7+0.7

6.1 + 0.9

7.5 + 1.0

100

110

±1.0

3.9 + 0.6

5.7+0.8

7.5 + 1.0

9.1+1.2

125

±1.3

5.0+0.7

6.2+0.9

8.5 + 1.2

10.6+1.4

125

140

±1.5

5.5 + 0.7

7.2+1.0

9.6+1.2

11.6+1.4

150

160

±1.5

5.7+0.8

8.3 + 1.1

10.8 + 1.3

13.3 + 1.6

180

±1.7

6.4+0.9

9.3 +1.2

12.2+1.4

14.9+1.7

200

±1.8

7.1+1.0

10.3 + 1.3

13.6+1.6

16.6+1.9

200

225

±2.1

7.9 + 1.0

11.6+1.4

15.2 + 1.7

18.7+2.1

250

±2.3

8.8 + 1.1

12.9+1.5

17.0+1.9

20.7+2.3

250

280

2.6

9.9 + 1.2

14.4+1.7

18.9+2.1

23.2+2.6

300

315

±2.9

11.1 + 1.3

16.2+1.9

21.2+2.4

26.1 + 2.9

355

±3.2

12.5 + 1.5

18.3 + 2.1

23.9+2.4

29.4+3.2

400

±3.6

14.1 + 1.7

20.6+2.3

26.9+3.0

33.2+3.6

450

±4.1

15.8+2.6

23.3 + 3.7

30.5 + 4.8

500

±4.5

17.6+2.9

25.7+4.1

33.9+5.3