HDPE Natural Gas Pipes

HDPE Natural Gas Pipes is a natural gas pipeline made of HDPE (High Density Polyethylene). HDPE is a high-strength, corrosion-resistant, chemical-resistant and flexible plastic material. This material is widely used in the field of gas transportation due to its excellent chemical stability, pressure resistance, low friction coefficient, environmental adaptability and weather resistance.

Advantages of HDPE Natural Gas Pipes

1. High strength and corrosion resistance: HDPE pipes have good corrosion resistance and can resist erosion by a variety of chemical media, including not promoting the growth of algae, bacteria or fungi, thereby greatly improving the service life of the product and saving some costs. This corrosion resistance makes HDPE pipes perform well in natural gas transportation, especially in environments with chemical corrosion.

2. Good airtightness: HDPE Natural Gas Pipes have good airtightness and can ensure that gas does not leak. This is due to its use of fusion connection (hot-melt connection or electric fusion connection), which essentially ensures the identity of the interface material, structure and the pipe body itself, and realizes the integration of the joint and the pipe. Experiments have confirmed that the tensile strength and burst strength of its interface are higher than the pipe body, which can effectively resist the hoop stress and axial tensile stress generated by the internal pressure. Therefore, compared with rubber ring joints or other mechanical joints, there is no risk of leakage caused by joint distortion.

3. High toughness: HDPE Natural Gas Pipes have high toughness, and its elongation at break generally exceeds 500%, and it has a strong adaptability to uneven settlement of the pipe base. At the same time, it is also a pipe with excellent seismic performance and performs well in natural disasters such as earthquakes. For example, in the Kobe earthquake in Japan in 1995, HDPE Natural Gas Pipes and HDPE pipe for water supply were among the pipeline systems that survived, so Japan vigorously promoted the use of HDPE pipes in the gas and water supply fields after the earthquake.

Excellent flexibility: The flexibility of HDPE pipes is an important property, which greatly enhances the value of this material for pipeline engineering. The flexibility of polyethylene allows PE gas pipes to be coiled and supplied in longer lengths without the need for various connecting pipe fittings. This feature makes it easy to change the direction of the PE gas pipeline according to the requirements of the construction method. At the same time, the shape of the pipe can be changed before construction, and the original size and dimensions can be restored after inserting the old pipe, which is suitable for construction without grooving.

JUNNUO HDPE natural gas pipes are made from PE100 raw materials supplied by world-leading raw material suppliers such as Borealis, Shanghai Petrochemical, and Sinopec. The high toughness and light weight of polyethylene increases the cost-effective and reliable solution required for gas distribution systems.

HDPE gas pipe is suitable for outdoor gas transportation and distribution. The working temperature is between -20 °C and 40 °C, and the long-term maximum working pressure is not more than 0.7 MPa. JUNNUO HDPE gas pipes are ideal for low pressure gas delivery applications.

HDPE natural gas pipes have the following advantages:

• Corrosion resistance: HDPE is an inert material that is resistant to various chemical media.
• No leakage: HDPE pipe is connected by electro fusion and its interface strength is higher than that of the pipe itself.
• High toughness: The elongation at break of HDPE pipes is generally above 500%. For the uneven settlement of the foundation engineering construction, its adaptability is very strong and the seismic performance is good.
• Excellent resistance: Excellent resistance to rapid crack propagation (RCP).
• Excellent flexibility: Excellent flexibility and scratch resistance.
• Good wear resistance: Good wear resistance, low wall friction coefficient, low flow resistance and strong conveying capacity.
• Non-excavation installation: A variety of non-excavation methods are available for easy construction and installation.
• Low system cost: Low system cost and low maintenance cost can greatly reduce project costs.
• Long service life: The buried HDPE pipe is normally used for 70 years.
• Recyclable, environmentally friendly: HDPE materials can be reused, fully in line with the nationally advocated efficient environmental protection concept.