PE Farmland Irrigation Pipe

Overview of farmland irrigation polyethylene water supply pipe:

Due to its high strength, high temperature resistance, corrosion resistance, non-toxicity, wear resistance and other characteristics, polyethylene PE pipes are widely used in sewage, water supply, drainage, water transportation and other manufacturing fields. The chemical Chinese name of PE is: polyethylene. The farmland sprinkler irrigation polyethylene water supply pipe made of PE material includes low density polyethylene pipe, medium density polyethylene pipe and high density polyethylene pipe. Because PE polyethylene pipe has the characteristics of wear resistance, acid resistance and corrosion resistance, high temperature resistance and high pressure resistance, it has gradually replaced the traditional pipes such as steel pipes and cement pipes in the market, especially because the pipes are light in weight and easy to install and move. , is the best choice for new materials.

General regulations for farmland irrigation polyethylene water supply pipes:

①Polyethylene PE pipes and fittings should have the product quality inspection report of the quality inspection department and the certificate of conformity of the manufacturer.

②When storing, handling and transporting polyethylene PE pipes, they should be bundled with non-metallic ropes, and the ends of the pipes should be blocked.

③When storing, handling and transporting polyethylene PE pipes and fittings, they shall not be thrown and impacted by violent cracks.

④Polyethylene PE pipes and fittings shall not be exposed to sunlight and rain when they are stored, handled and transported; they shall not be in contact with other chemical substances such as oil, acid and salt.

⑤ The storage period of polyethylene PE pipes and fittings from production to use should not exceed one year.

Inspection and acceptance of polyethylene water supply pipes for farmland irrigation:

① Acceptance of PE polyethylene pipes and fittings must be carried out. First check and accept relevant materials such as product instruction manual, product certificate, quality assurance certificate and various performance inspection and acceptance reports.

② When accepting PE polyethylene pipes and fittings, samples should be taken in the same batch, and the specifications, dimensions and appearance performance should be checked according to the current national standard "Water Supply (PE) Polyethylene Materials", and a comprehensive test should be carried out if necessary.

The connection of farmland irrigation polyethylene water supply pipeline:

1. Electrothermal fusion: A special electric fusion welding machine is used to connect straight pipes to straight pipes and straight pipes to pipe fittings. Generally used for pipes below 160mm.

2. Hot-melt butt connection: use a special butt welding machine to connect pipes, generally used for pipes above 160mm.

3. Steel-plastic connection: It can be connected by flange, screw thread and other methods.

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.