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燃气用埋地聚乙烯(PE)管材

2018/07/20


燃气用埋地聚乙烯(PE)管材

Buried polyethylene (PE) pipes for the supply of gaseous fuels




压力?#29123;?/span>:燃气用埋地聚乙烯(PE)管道的工作压力详见下表。

Pressure grade: the working pressure of buried polyethylene (PE) pipes for the supply of gaseous fuels is shown in the table below.

规格型号:dn20mm~dn630mm。

Specification and model: dn20mm~dn630mm

执行标准:GB/T 15558.1-2015《燃气用埋地聚乙烯(PE)管材》。

Executive standard: GB/T 15558.1-2015 Buried Polyethylene (PE) Piping Systems for the Supply of Gaseous Fuels — Part 1: Pipes

性能特点:

Performance features:

1.密度小,重量轻,容?#35013;?#36816;和安装;

1. Low density, light weight, easy to handle and install;

2.可?#25237;?#31181;化学介质腐蚀;

2. Be able to resist corrosion by a variety of chemical media;

3.水力性能优越,其磨阻系数仅为0.009;

3. Excellent hydraulic performance: the wear resistance coefficient is only 0.009;

4.使用寿命长,可达50年以上;

4. Long service lifetime: up to 50 years;

5.连接可靠;

5. Reliable connection;

6.高韧性,抗震性能好;

6. High toughness and good seismic performance;

7.较好的抵抗慢速裂纹增长(SCG)和快速裂纹扩展(RCP)的能力。

7. Better resistance to slow crack growth (SCG) and rapid crack propagation (RCP).




燃气用埋地聚乙烯(PE)管道最大允许的工作压力(MPa

The maximum allowable working pressure (MPa) of buried polyethylene (PE) pipes for the supply of gaseous fuels


城镇燃气的种类

Type of town gases

PE80级管材

PE100级管材

SDR11

SDR17.6

SDR11

SDR17.6

天然气

Natural gas

0.50

0.30

0.70

0.40

液化石油气

Liquefied petroleum gas

混空气

Mixed with air

0.40

0.20

0.50

0.30

气态

Gaseous state

0.20

0.10

0.30

0.20

人工煤气

Manufactured gas

干气

Dry gas

0.40

0.20

0.50

0.30

其它

Others

0.20

0.10

0.30

0.20

?



规格尺寸:燃气用埋地聚乙烯(PE)管材规格尺寸符合下表要求。

Specification and dimension: the specification and dimension of buried polyethylene (PE) pipes for the supply of gaseous fuels meet the requirements in the following table.



常用SDR17.6SDR11管材的最小壁厚

Minimum wall thickness of frequently-used SDR17.6 and SDR11 pipes


公称外径dn/mm

最小壁厚 Minimum wall thickness?/mm

SDR17.6

SDR11

20

2.3

3.0

25

2.3

3.0

32

2.3

3.0

40

2.3

3.7

50

2.9

4.6

63

3.6

5.8

75

4.3

6.8

90

5.2

8.2

110

6.3

10.0

125

7.1

11.4

140

8.0

12.7

160

9.1

14.6

180

10.3

16.4

200

11.4

18.2

225

12.8

20.5

250

14.2

22.7

280

15.9

25.4

315

17.9

28.6

355

20.2

32.3

400

22.8

36.4

450

25.6

40.9

500

28.4

45.5

560

31.9

50.9

630

35.8

57.3




注:可根据客户要求,定制黄色?#32479;?#33394;管材。

Note: the yellow and orange pipes can be customized according to customer requirements.


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