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PE Water Supply Pipe DN20-800 PE Gas Pipe/PE Mine Pipe / HDPE Water Supply Pipes/ HDPE Mine Gas Pipe
Description:
PE pipes use PE80 grade PE100 grade materials,
The caliber ranges from DN25 to DN800 and is divided into 24 grades.
The pressure level is between 0.4Mpa~1.6Mpa, a total of 6 levels
PE pipe is the replacement product of traditional steel pipe and PVC drinking water pipe.
PE pipes must withstand a certain pressure, and PE resins with large molecular weight and better mechanical properties are usually selected.
The PE pipe will be melted at a temperature between 190°C and 240°C,
Fully contact the two melted parts of the pipe (or pipe fitting) and maintain proper pressure, and the two can be firmly integrated after cooling.
Therefore, the connection method of PE pipe:
There are usually two methods of electric hot melt connection and hot melt butt joint.
According to the size of the pipe diameter, it can be divided into: when DN≤63, the injection molding hot-melt socket connection is adopted;
When DN ≥ 75, use hot-melt butt connection or electro-fusion socket connection; when connecting with different materials, use flange or thread connection.
In terms of pipeline repair methods, there are expansion pipe construction method and lining PE method.
Specification:
| Item | project | Require |
| 1 | 20℃ hydrostatic strength (circumferential stress 8.0MPa, 100h) | No rupture, no leakage |
| 2 | 80℃ hydrostatic strength (circumferential stress 3.5MPa, 165h) | No rupture, no leakage |
| 3 | 80℃ hydrostatic strength (circumferential stress 3.2MPa, 1000h) | No rupture, no leakage |
| 4 | Elongation at break, % | ≥350 |
| 5 | Longitudinal shrinkage (110℃), % | ≤3 |
| 6 | Oxidation induction time (200℃), min | ≥20 |
Photos:
Application areas of PE water supply pipes
PE pipes are mainly used for:
Municipal engineering water supply system, building indoor water supply system,
Outdoor buried water supply system and buried water supply system of residential area and factory area,
Repair of old pipelines, water treatment engineering piping system,
Industrial water pipes in garden, irrigation and other fields.
However, it should be noted that PE pipes cannot be used for hot water pipes.
The advantages of PE water supply pipeline in application
1. It is easy to form a closed anti-seepage system by butt welding and electrofusion welding.
2. Light weight and easy to install and handle;
3. Strong wear resistance and excellent hydraulic performance, no need for outer protection in buried pipelines.
4. Chemical corrosion resistance, internal, external and microbial corrosion resistance, strong corrosion resistance, and healthy.
5. Good environmental adaptability and frost resistance.
6. Long service life, with a service life of more than almost 50 years;
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