PE pipe (polyethylene pipe) has its own performance characteristics in both high and low temperature environments.
At high temperatures, the performance of PE pipe is somewhat limited. Due to the relatively low melting temperature of polyethylene, usually between 130°C and 140°C, this makes PE pipes easily soften, deform or even melt in high temperature environments. Therefore, the use temperature of PE pipes is generally limited to between ±60°C, which makes them unsuitable for high-temperature fluid transportation. However, PE pipe still has good thermal stability under certain high temperature conditions, and can maintain the stability of physical and chemical properties within a certain temperature range.
In the low temperature environment, PE pipe shows better resistance to low temperature embrittlement characteristics. Its low-temperature embrittlement point can usually reach -70 ° C, which makes the PE pipe in the cold conditions can still maintain a certain degree of flexibility, is not easy to occur brittle crack. Therefore, PE pipe in cold areas of the application of excellent performance, especially for winter construction and field environment of the pipeline laying.
It should be noted that when using PE pipe in low temperature environment, it is still necessary to take certain protective measures. Especially when the ambient temperature is lower than the low-temperature embrittlement point of PE pipe, it is necessary to take measures to prevent the pipe from being brittle due to low temperature. In addition, in the process of pipe connection and installation, it is also necessary to pay attention to the impact of the ambient temperature on the performance of PE pipe to ensure the quality and safety of pipe connection.
In summary, the performance of PE pipe in high and low temperature environments have their own characteristics. In the high-temperature environment, its performance is subject to certain restrictions; while in the low-temperature environment, it shows better resistance to low-temperature embrittlement characteristics. Therefore, in the selection and use of PE pipe, need to be based on the specific use of environmental and temperature conditions for comprehensive consideration.
