βPEX pipe (cross-linked polyethylene pipe) is a high-performance plastic pipe material with excellent temperature resistance, chemical corrosion resistance and long service life.
Definition and manufacturing process
PEX pipe is made of polyethylene (PE) material. The linear molecular structure of polyethylene is transformed into a three-dimensional network structure by physical and chemical methods to improve its performance. The main raw materials include HDPE and additives such as initiators, cross-linkers, catalysts, etc. Other modifiers can also be added when special requirements are met.
Connection method
Hot melt connection
This is one of the commonly used connection methods for PEX pipes. By heating the connection parts of the pipe and the pipe fittings, they are melted and fused together, and the connection is firm and the sealing is good.
Card sleeve connection
The pipe fittings and pipes are clamped and fixed with a card sleeve. This connection method is relatively simple to operate and fast to install. It is suitable for some occasions where the connection strength requirements are not particularly high.
Performance characteristics
β1. Excellent temperature resistance: PEX pipes can be safely used in the temperature range of -70β to 110β, suitable for various ambient temperatures.β
2. Strong chemical corrosion resistance: It has good chemical corrosion resistance and is suitable for a variety of media.β
3. Long service life: It can be used for more than 50 years under normal conditions.β
4. Good thermal insulation performance: Low thermal conductivity and good thermal insulation effect.β
5. Shape recovery memory performance: It has good shape recovery memory performance, anti-vibration and impact resistance.β
Application scenarios
PEX pipes are widely used in indoor hot and cold water pipe systems, especially for floor heating systems. Its excellent temperature resistance and energy-saving effect make it perform well in floor heating laying and can effectively reduce energy consumption.β In addition, PEX pipes are also used in oil pipelines, chemical pipelines and other fields.β