Compared with traditional metal pipelines, the **multi-layer composite fuel transfer pipes for gas stations** are electrical insulators. When non-polar liquids like gasoline flow through the pipelines, static electricity is generated and gradually accumulated on the inner surface. When the energy reaches a certain level and comes into contact with a conductor, a spark discharge may occur, which can easily ignite the oil vapor in the pipeline, leading to fires or explosions. The **multi-layer composite fuel transfer pipes for gas stations** feature cleaner, safer, stronger, and faster characteristics, and have been widely adopted in the construction of numerous gas stations. With the continuous development of technology, the application of dedicated fuel transfer pipes in gas station construction has been widely accepted in the industry, especially in the reconstruction and technical renovation projects of gas stations in coastal and inland areas with high salinity and corrosive geological conditions, playing an important role. In emergency handling of accidents, dedicated fuel transfer pipes for gas stations have also been promoted and applied. **Why use EVOH to manufacture the multi-layer composite fuel transfer pipes for gas stations:** Ordinary plastic pipes typically have oxygen permeability, and this characteristic becomes more pronounced with increasing temperature. This can lead to an increase in the oxygen content in hot water as the temperature rises. Technical data shows that when the hot water temperature is 40°C, the oxygen permeability exceeds 0.1mg/(L.day), which can severely corrode metal heaters, valves, fittings, radiators, pumps, etc., in heating systems. Therefore, in Europe, oxygen barrier plastic pipes are widely used in hot water systems (heating, air conditioning, drinking water, underfloor heating, etc.). In the field of heating pipelines, the use of dedicated fuel transfer pipes for gas stations is mandatory in underfloor heating projects in the United States, Europe, and Australia. **Introduction to the multi-layer composite fuel transfer pipes for gas stations:** The dedicated fuel transfer pipes for gas stations produced by Deyuan Rubber and Plastic Products Co., Ltd. are a new type of fuel transfer pipe consisting of four layers. The outer layer is orange-red for warning purposes and is made of high-density polyethylene. The inner wall of the pipe has 10 convex surfaces to accommodate small devices that detect oil leaks. The thickness of the convex layer wall is 5mm; the inner pipe is made of HDPE high-density polyethylene with a wall thickness of 6mm, and the innermost layer is made of EVOH material. The dedicated fuel transfer pipes for gas stations have leak-proof and oxygen barrier properties, with the thickness of the EVOH layer being 1mm. The EVOH layer is bonded to the HDPE layer using a strong adhesive and is formed in one go on the machine, with each roll measuring between 150 and 200 meters. The specifications mentioned above are: inner pipe diameter 63mm*6mm, outer pipe 75*5mm. Compared to traditional steel pipes, dedicated fuel transfer pipes for gas stations have the following advantages: 1. Long service life. Traditional pipes generally require anti-corrosion treatment before being buried, and even in neutral, non-corrosive soil, the average service life is only 10 years. In contrast, composite pipes, due to their stable properties, can achieve a maintenance-free service life of up to 50 years, essentially reaching the design usage limit of gas stations. 2. Safe anti-static properties. The inner surface of the dedicated fuel transfer pipes for gas stations is smooth, and the hydraulic line shape coefficient is good. The flow state of the liquid in the pipe can reduce the generation of static charges. At the same time, the composite pipe’s multi-layer design includes an independently designed conductive layer, which has anti-static properties and can effectively prevent the accumulation and discharge of static electricity, fully meeting construction standard requirements (volume resistivity less than 108Ω.m, surface resistivity less than 1010Ω). 3. Safe and efficient installation. The safety requirements for gas station pipeline construction are high, especially in gas station renovations and repairs, which may involve residual flammable and explosive hazardous liquids and gases during welding operations. Composite pipes usually use customized connection fittings and joints, utilizing hot melting or bonding principles, avoiding open flame operations typical of traditional processes. Seamless steel pipe installation generally requires enhanced anti-corrosion measures and must be buried in trenches, with an average construction time of 10-12 days for a gas station. In contrast, composite pipes do not require anti-corrosion treatment and can be directly buried, with an average construction period of only 3-5 days. 4. Corrosion resistance. Dedicated fuel transfer pipes for gas stations have strong corrosion resistance and do not rust. Since gas station fuel pipelines are mostly buried, traditional steel pipelines are subject to the limitations of soil acidity and the chemical composition of the soil, requiring multiple anti-corrosion measures before being buried. Composite pipes, due to their special chemical materials, do not undergo electrochemical reactions and are also difficult to ionize and react with other chemical components in the soil. They have high chemical stability and excellent corrosion resistance to acidic and alkaline solutions. In areas with strong soil corrosion and high humidity, they have significant advantages in anti-corrosion and rust resistance compared to steel pipes. 5. High pressure capacity and strong toughness. Dedicated fuel transfer pipes for gas stations are generally designed as multi-layer structures, employing a chemical molecular connection method to connect different layers of the pipe, making the multi-layer pipe a solid whole, eliminating the risk of leakage and swelling caused by delamination. Their pressure capacity exceeds that of seamless steel pipes. The working pressure can reach 4.0MPa, and the negative pressure can reach 0.1MPa, fully meeting the construction standard requirement that non-metal composite pipes have a maximum working pressure of no less than 0.35MPa. 6. Convenient transportation. The weight of dedicated fuel transfer pipes for gas stations can be one-tenth that of steel pipes, and due to their good flexibility and bendability, they can be bundled and transported in coils. The transportation of the pipes is not limited by processing length, greatly facilitating the logistics of materials. Henan Deyuan Rubber and Plastic Products Co., Ltd. is a high-tech enterprise integrating R&D, production, and sales, specializing in the production of **multi-layer composite fuel transfer pipes for gas stations**, oil well pipes, ultra-high molecular weight polyethylene pipes, tunnel escape pipes, steel belt reinforced polyethylene (HDPE) spiral corrugated pipes, HDPE pipes, inner and outer coated composite steel pipes, 3PE anti-corrosion pipes, lined plastic pipes (steel-lined PO pipes, steel-lined PE pipes, steel-lined tetrafluoroethylene pipes), rubber-lined pipes, and other series of multi-specification pipe fittings and materials. The products are mainly used in industries such as petrochemical, electric power, mining, metallurgy, pharmaceuticals, water conservancy, municipal, construction, environmental protection, dredging, and coal washing. Survival through quality, development through credibility. We warmly welcome your patronage and sincerely look forward to serving you!