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Introduction of double flat wall steel-plastic composite drainage pipe

The double-flat wall steel-plastic composite winding drainage pipe developed and produced recently by Jingzhou Liangcheng Science and Technology Co., Ltd. is prefabricated into "T" type plate belt with high density polyethylene (HDPE) as the main raw material. The plate belt is wound on the pipe forming machine and welded into a pipe. At the same time, the W-type steel belt bound by galvanized steel belt is embedded in the groove between the two plates, and PE is coated on the steel belt to become the third generation of new steel-plastic drainage pipe on the outer wall of the pipe.

Key word:

double the and 1.0 pipe of is wall drainage pipes

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Product details

The double-flat wall steel-plastic composite winding drainage pipe developed and produced recently by Jingzhou Liangcheng Science and Technology Co., Ltd. is prefabricated into "T" type plate belt with high density polyethylene (HDPE) as the main raw material. The plate belt is wound on the pipe forming machine and welded into a pipe. At the same time, the W-type steel belt bound by galvanized steel belt is embedded in the groove between the two plates, and PE is coated on the steel belt to become the third generation of new steel-plastic drainage pipe on the outer wall of the pipe.

HDPE double-flat wall steel-plastic composite drainage pipe has both the corrosion resistance of plastic and the strength and toughness of steel, so its advantages are obvious; It is characterized by high ring stiffness, safety and reliability, light weight, simple installation, good sealing, low transportation and construction costs, strong corrosion resistance, and strong resistance to abnormal sudden load.

双平壁钢塑复合排水管介绍

Product Features

1. High ring stiffness: after testing and engineering use, the ring stiffness is greater than SN8, and the maximum can reach SN16.   

2. Good corrosion resistance: HDPE has excellent corrosion resistance. The profiled steel after anti-corrosion treatment is completely buried in HDPE, and the service life of the pipeline is more than 50 years.   

3. No leakage: advanced structure, advanced voltage fusion between plates and strips, uniform and firm joints.   

4. The pipe wall thickness is uniform and the performance is consistent: because the pipe wall thickness is uniform (non corrugated) and there is no weak link, the pipe wall thickness performance is consistent.   

5. Convenient installation: due to the double-flat structure of the inner and outer walls, the socket connection is adopted between the pipe and the pipe, and between the pipe and the inspection, which is convenient for installation and fast for installation.   

6. The overall cost of the project is low: for large-diameter pipes, considering the manufacturing cost, transportation and installation cost savings, the comprehensive cost of the double-flat wall steel-plastic composite drainage pipe project is lower than that of other types of pipes except cement pipes. Compared with cement pipes, because the inner wall of plastic pipes is smooth and flat, plastic pipes with the same diameter as cement pipes can transport larger media flow (about 15%), Therefore, the comprehensive cost of double-flat wall steel-plastic composite drainage pipe is slightly lower than or equal to that of cement pipe, but its service life is greatly extended.

7. Resistance to formation settlement: Due to the advanced structure design of the pipe wall and the reasonable process design, the buried double-flat wall steel-plastic winding drainage pipe has both rigid and flexible performance. Our extremely harsh destructive experiments have proved that the buried double-flat wall steel-plastic winding drainage pipe can resist the harsh environment and the formation settlement.

Product Parameters

NO.

Project Requirement

1

Ring stiffness (KN/㎡)

SN8

≥8

SN10

≥10

SN12.5

≥12.5

SN16

≥8

2

Impact performance (TIR)

≤10%

 

3

Ring flexibility The sample is smooth, without reverse bending and cracking  

4

Oven test There shall be no delamination and crack at the fusion joint of drainage pipe  

5

Creep ratio

≤2%

 

6

Tensile strength of weld Nominal size/mm nominal diameter The pipe can bear the minimum tensile force (N)

300≤DN/ID≤500

600

600≤DN/ID≤800

840

900≤DN/ID≤1200

1020

1300≤DN/ID2000

1460

DN/ID≤2000

1600

7

Ring flexibility The sample is smooth, without reverse bending and cracking

8

Oven test There shall be no delamination and crack at the fusion joint of drainage pipe

9

Creep rate

≤2%

 

How to link pipes

There are four main ways to link HDPE double-flat wall steel-plastic composite drainage pipes, namely socket link, heat-shrinkable sleeve link, electrothermal fusion band link and stainless steel looper link.

Pipe specification

NO.

Nominal size DN/ID Minimum average inner diameter dim,
min
Minimum memory wall thickness e.
min
Ring stiffness and steel strip parameters

SN8

SN12.5

SN16

Minimum thickness of steel strip Minimum height of steel strip Minimum thickness of steel strip Minimum height of steel strip Minimum thickness of steel strip Minimum height of steel strip

1

300

249

2.5

0.5

12

0.6

14

0.7

18

2

400

392

2.5

0.5

12

0.6

14

0.7

18

3

500

490

3.5

0.6

14

0.7

16

0.7

20

4

600

588

3.5

0.6

16

0.7

16

0.8

20

5

700

685

3.5

0.6

16

0.7

18

0.8

20

6

800

785

5

0.8

20

1.0

20

1.0

24

7

900

885

5

0.8

22

0.8

24

1.0

26

8

1000

985

5

0.8

24

0.8

26

1.0

30

9

1100

1085

5

1.0

24

1.0

26

1.0

30

10

1200

1185

5

1.0

24

1.0

26

1.0

30

11

1300

1285

5

0.8

30

1.0

32

1.0

36

12

1400

1385

5

0.8

30

1.0

30

1.0

36

13

1500

1485

5

0.9

30

1.0

32

1.0

36

14

1600

1585

5

1.0

30

1.0

32

1.0

36

15

1800

1785

6

1.0

34

1.0

36

1.0

42

16

2000

1985

6

1.0

36

1.0

40

1.0

42

17

2200

2185

7

0.8

42

1.0

42

1.0

48

18

2400

2385

7

1.0

42

1.0

44

1.0

48

19

2600

2585

8

1.0

44

1.0

48

1.2

48

20

2800

2785

8

1.0

48

1.2

48

1.2

52

21

3000

2985

8

1.2

48

1.2

54

1.5

54

 

Application field:

图片1.png

 Municipal Engineering:

 Used as buried rainwater and sewage pipe

图片2.png

 Road Works:

 Used as seepage and drainage pipes for railways, highways and expressways

图片3.png

 Terminal Airport:

 Used as rainwater and sewage pipes for large port, wharf and airport projects

图片4.png

 Architectural Engineering:

 Rainwater pipes, underground sewage drainage pipes and ventilation pipes in apartments, residential gardens and other cities

图片5.png

 Gymnasium:

 Used as infiltration and drainage pipe for golf course, football field and square

图片6.png

 Communication Engineering:

 Used as communication cable and optical cable protection pipe

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