Understand the relevant knowledge of PE pipe fittings from different perspectives

Polyethylene (PE) pipes are widely used in water supply, drainage, gas transmission and other industrial fields due to their excellent corrosion resistance, flexibility and impact resistance. With the continuous growth of market demand, the specifications of PE pipes and their fittings are becoming more and more abundant, which can meet the needs of different projects. Let's discuss the diversity of PE pipe fittings, especially the combination of different outer diameters and wall thicknesses.

1. Classification of pipe fittings

PE pipe fittings are mainly divided into two categories: electric fusion pipe fittings and hot melt pipe fittings.

1. Electric fusion pipe fittings: The electric fusion pipe fittings are connected to the pipe by electric heating, which has good sealing and pressure resistance. Electrofusion fittings are usually available in larger sizes, up to 450mm, which makes them suitable for large projects and high-pressure applications.

2. Hot-melt pipe fittings: Hot-melt pipe fittings melt the contact surface of the pipe and pipe fittings through heating, and then cool and solidify to achieve a stable connection. The specifications of hot melt pipe fittings are diverse, and the common ones are butt pipe fittings, which can reach 1000mm or even larger, which are suitable for the needs of various fields.

Second, the combination of outer diameter and wall thickness

The size of PE pipes is usually expressed by the nominal diameter (DN), and the outer diameter and wall thickness are important factors that affect the pressure bearing capacity and service life of the pipe.

Take DN150 and DN100 as examples:

- DN150 PE fittings with an outer diameter of 160mm and a wall thickness typically between 12mm and 20mm are suitable for medium flow needs.

- DN100 PE fittings with an outer diameter of 110 mm and a wall thickness between 6 mm and 12 mm are suitable for small flow applications. PE pipe fittings

3. Richness of specifications

The specifications of PE pipe fittings are not limited to the above-mentioned ones. With the continuous advancement of plastic molding technology, more and more combinations of outer diameter and wall thickness are being developed. For example:

- Small size products: such as DN25 (outer diameter 32mm, wall thickness 4mm), suitable for domestic water supply systems.

- Medium-sized products: such as DN63 (outer diameter 75mm, wall thickness 6mm), commonly used in municipal water supply networks.

- Large-size products: such as DN400 (outer diameter 450mm, wall thickness 20mm), suitable for industrial water or sewage treatment.

Fourth, the field of application

The wide range of PE fittings makes it widely used in many fields:

1. Water supply system: Because of its corrosion resistance and good fluid transfer capacity, PE pipe fittings have become an important part of modern water supply system.

2. Drainage system: In the fields of municipal drainage and rainwater drainage, PE pipe fittings are widely used because of their sealing and pressure resistance.

3. Gas transportation: PE pipe fittings are suitable for the transportation of natural gas and coal gas, with high safety and can effectively prevent leakage.

4. Agricultural irrigation: The flexibility and durability of PE pipe fittings make it an ideal choice for agricultural irrigation systems.

The diversity of specifications of PE pipe fittings provides a broad choice for its application in various industries. From small domestic water supply systems to large-scale industrial plumbing projects, the combination of outer diameter and wall thickness of PE pipe fittings can meet different technical needs and use environments. With the continuous advancement of technology, the specifications of PE pipe fittings will be more abundant to meet the increasingly complex engineering needs. Choosing the right PE pipe fittings can not only improve the safety and stability of the project, but also effectively reduce maintenance costs and promote the sustainable development of the industry.