PE Water Supply Pipe Large Diameter

Introduction of PE water supply pipe

The inner wall of the PE water supply pipe is smooth and does not change with the use time. The frictional resistance is small, which saves energy. The pressure loss is about 30% smaller than that of the steel pipe. Good hygienic performance, no additives, and no possibility of polluting drinking water. The ISO standard grade polyethylene material is grade 0, and it is not moldy material. Compared with some other commonly used plastic materials, the mold resistance of polyethylene is much higher. Long-term use is not fouling.

The PE pipe is suitable for the temperature not exceeding 40 ℃, the nominal pressure below 1.6MPa, the general purpose pressure water delivery and the drinking water delivery. Mainly include municipal buried water supply, building water supply (drainage), farmland irrigation, waterscape engineering and so on.

The comprehensive performance of PE pipe application field | temperature resistance | low temperature embrittlement temperature is very low, it can be used in the range of -40 ℃ to 60 ℃, and pipeline embrittlement will not occur in winter installation and construction.

Application of PE water supply pipe

PE water supply pipes can be used for general-purpose pressure water delivery and drinking water delivery.

Mainly include municipal buried water supply, building water supply (drainage), farmland irrigation, waterscape engineering and so on. in water supply pipeline engineering.

Features

1. Reliable connection: The polyethylene water supply pipes are connected by electrothermal fusion; flanges can be used to connect with other pipes, which is convenient and quick.

2. Excellent low temperature impact resistance: The low temperature embrittlement temperature of polyethylene is extremely low, and it can be used safely in the temperature range of -35℃-60℃. During construction in winter, due to the good impact resistance of the material, the pipe will not be brittle.

3. Excellent chemical corrosion resistance: HDPE pipes are resistant to corrosion by a variety of chemical media, and the chemicals present in the soil will not have any degradation effect on the pipes.

4. Anti-aging and long service life: polyethylene pipes containing evenly distributed carbon black can be stored or used outdoors for 50 years without being damaged by ultraviolet radiation.

5. Good detour: The flexibility of HDPE pipe makes it easy to bend. In engineering, obstacles can be bypassed by changing the direction of the pipe. In many occasions, the flexibility of the pipe can reduce the amount of pipe fittings and installation costs.

6. Small water flow resistance: HDPE pipes have a smooth inner surface with a Manning coefficient of 0.009. The smooth surface and non-adhesive properties ensure that HDPE pipes have higher conveying capacity than traditional pipes, and also reduce the pressure of the pipeline losses and energy consumption for water delivery.

7. Convenient handling: HDPE pipes are lighter than concrete pipes, galvanized pipes and steel pipes, and are easier to handle and install, and the installation cost of the project is greatly reduced.

8. Various construction methods: In addition to traditional excavation methods, HDPE water supply pipelines can also be constructed using a variety of new trenchless technologies such as pipe jacking, directional drilling, lining pipes, and split pipes. , so HDPE pipes have a wider range of applications.

Product Description:

1. The product implementation standard is: CJ/T189-2007 "Steel mesh skeleton plastic (polyethylene) composite pipe and pipe fittings".

2. Composite pipes of the same specification and different pressure levels have different wire diameters and grid parameters.

3. The nominal pressure is the maximum working pressure of the pipe to transport the water medium at 20°C. If the medium temperature changes, it should be corrected according to the "nominal pressure correction coefficient value".

4. The color of the pipe is generally black, the gas pipe is black or blue, and the black pipe should have a blue color bar.

5. Pipe fixed length: 6m, 12m, can also be determined according to user requirements and transportation conditions

Performance comparison of steel mesh skeleton plastic composite pipe and welded steel skeleton plastic composite pipe:

First: the production process of steel mesh skeleton plastic composite pipe and welded steel skeleton plastic composite pipe is different

1. Composite structure. The welded steel skeleton plastic composite pipe is based on ordinary carbon steel wire. Although the steel wire is relatively thick, the tensile strength is only 400Mpa, the process is complicated, and the product quality fluctuates greatly. Steel mesh skeleton plastic (composite pipe, high-strength steel wire (above 1950Mpa) is used as the base material, and the steel wire is wound on the pipe in a 54.7-degree oblique direction, so that the pipe can be axially and The force is uniformly distributed in the circumferential direction, and a high safety factor is adopted when determining the diameter and density of the steel wire.

2. Water channeling on the end face. Welded steel skeleton plastic composite pipe, due to the inevitable gap between the PE material pipe and the steel plate, when the pipe is cut, the end face is sealed, but the seal is easy to fall off when heated with electrofusion pipe fittings. After installation, the medium will enter the gap between the steel plate and the plastic, resulting in a decrease in the pressure bearing capacity of the entire pipeline system. As a result, the pipe will be damaged at low pressure, resulting in the failure of the pipe.

Second: the product standards of steel mesh skeleton plastic composite pipe and welded steel skeleton plastic composite pipe are different. The steel mesh skeleton plastic composite pipe implements CJ/T189-2007, and the steel skeleton composite pipe implements the CJ/T123-2004 standard;

Third: The steel skeleton composite pipe can be overhead, but the steel mesh composite pipe cannot be overhead.