Application of PE pipe
It surface color indicates that his use is mainly for water-related pipes (water supply pipes), yellow gas pipes, red fire pipes and mining pipes.
In the water supply pipeline project, PE water supply pipeline will eventually replace UPVC pipeline. Mainly include municipal buried water supply, building water supply (drainage), irrigation, water feature engineering, etc.
feature.
1. High strength, good seismic performance;
2. Reliable connection;
3. Low density, light weight, easy to handle and install
4. Can resist the corrosion of a variety of chemical media;
5. Excellent hydraulic performance, wear resistance coefficient is only 0.009;
6. Long each year, up to 50 years;
7. Good hygiene and environmental performance;
8. Better resistance to slow crack growth (SCG) and rapid crack growth (RCP).
|
HDPE PIPE |
|||||
|
ring stiffness |
SN16 |
SN12.5 |
SN10 |
SN8 |
SN6 |
|
Pressure rating |
SDR11 |
SDR13.6 |
SDR17 |
SDR21 |
SDR26 |
|
outer diameter(mm) |
thickness |
thickness |
thickness |
thickness |
thickness |
|
20 |
2.3 |
||||
|
25 |
2.3 |
||||
|
32 |
3 |
||||
|
40 |
3.7 |
||||
|
50 |
4.6 |
||||
|
63 |
5.8 |
4.7 |
|||
|
75 |
6.8 |
5.6 |
4.5 |
||
|
90 |
8.2 |
6.7 |
5.4 |
4.3 |
|
|
110 |
10 |
8.1 |
6.6 |
5.3 |
4.2 |
|
125 |
11.4 |
9.2 |
7.4 |
6 |
4.8 |
|
140 |
12.7 |
10.3 |
8.3 |
6.7 |
5.4 |
|
160 |
14.6 |
11.8 |
9.5 |
7.7 |
6.2 |
|
180 |
16.4 |
13.3 |
10.7 |
8.6 |
6.9 |
|
200 |
18.2 |
14.7 |
11.9 |
9.6 |
7.7 |
|
225 |
20.5 |
16.6 |
13.4 |
10.8 |
8.6 |
|
250 |
22.7 |
18.4 |
14.8 |
11.9 |
9.6 |
|
280 |
25.4 |
20.6 |
16.6 |
13.4 |
10.7 |
|
315 |
28.6 |
23.2 |
18.7 |
15 |
12.1 |
|
355 |
32.2 |
26.1 |
21.1 |
16.9 |
13.6 |
|
400 |
36.3 |
29.4 |
23.7 |
19.1 |
15.3 |
|
450 |
40 |
33.1 |
26.7 |
21.5 |
17.2 |
|
500 |
45.4 |
36.8 |
29.7 |
23.9 |
19.1 |
|
560 |
50.8 |
41.2 |
33.2 |
26.7 |
21.4 |
|
630 |
57.2 |
46.3 |
37.4 |
30 |
24.4 |
|
710 |
52.2 |
42.1 |
33 |
27.2 |
|
|
800 |
58.8 |
47.4 |
38 |
30.6 |
|
|
900 |
53.3 |
42.9 |
34.4 |
||
|
1000 |
59.3 |
47.7 |
38.2 |
||
|
1200 |
57.2 |
45.9 |
|||
What is the difference between PVC and HDPE pipes?
HDPE is a softer and more flexible plastic, making HDPE pipes more suitable for pressure reduction and smaller bends. At the same time, PVC is a stronger and stronger material, which is why PVC pipes are more widely used for direct burial and trenchless installation.
How do you compare PVC with HDPE?
When comparing PVC to HDPE, it is first important to realize that both materials have many advantages over other more traditional pipe options made of concrete, iron, steel or copper. Most municipalities used to rely on traditional pipe materials to build water infrastructure, but this situation has changed with the emergence of alternatives. Traditional pipe materials are also related to the following problems: leaking pipe joints, pipe damage due to corrosion, and general wear.
On the other hand, compared with traditional pipe materials, thermoplastics such as PVC and HDPE can provide longer service life. They are also less dense and therefore lighter and cheaper to transport. PVC and HDPE also show high tensile strength and are highly resistant to corrosion based on electrochemistry. Although both thermoplastics show many similarities, there are still some key differences.
PVC is described as a harder and stronger material, which has both advantages and disadvantages. A key benefit is that, compared with HDPE, less PVC material is used to make pressure pipes at the target pressure level. Due to its rigidity and strength, PVC can be directly connected to mechanical valves, non-plastic fittings and many types of connections. However, its lack of flexibility means that PVC requires a longer bending radius than HDPE pipe.
HDPE is known for its high strength-to-density ratio, flexibility and chemical stability, and is ideal for pressure and non-pressure pipeline applications. HDPE does require more materials to achieve the same rated pressure as PVC pipes, but HDPE has obvious advantages. It has a variety of methods to achieve a leak-free system through thermal welding and the use of special accessories.
