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Plastic piping system

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Plastic piping system

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Nominal diameter DN (mm)

D (mm)
Nominal outer diameter

Outer diameter deviation

PN0.4MPaS+ S + deviation

PN0.6MPaS+ S + deviation

PN0.8MPaS + S + deviation

PN1.0MPaS +S + deviation

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

 

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Ningbo Baodi Plastic Valve Co., Ltd.
Ningbo Baodi Plastic Valve Co., Ltd.

Ningbo Baodi Plastic Valve Co., Ltd. traces its origins back to 1979 and is recognized as one of the earliest enterprises in China to design and produce industrial plastic valves, having received acceptance from the Ministry of Chemical Industry.

Over the past 47 years since its founding, the company has designed and manufactured a wide range of plastic valves for the most demanding industries. It has served tens of thousands of enterprises both domestically and internationally, with exports to more than 60 countries, consistently remaining a leading manufacturer of industrial thermoplastic valves and piping systems. Our professional service and stable quality have always been highly recognized and appreciated by customers worldwide.

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