Q:What is the highest temperature that directly buried prefabricated insulation pipe can withstand?

The maximum temperature that prefabricated direct-buried insulated pipes can withstand depends on the insulation material formula and production process. Generally, ordinary prefabricated direct-buried insulated pipes, when using common insulation materials, can withstand a maximum temperature of around 120 degrees Celsius. Within this temperature range, the insulation material has a stable structure, maintains good insulation and physical properties, and ensures the normal operation of the pipeline. High-temperature resistant prefabricated direct-buried insulated pipes produced using special formulas and processes can withstand temperatures up to 150°C or even higher. However, it should be noted that prolonged exposure to extremely high temperatures will accelerate the aging of insulation materials, leading to a decline in insulation performance. It may also affect the performance of the outer protective pipe and steel pipe, shortening the service life of the pipeline.

Time：12/12/2025 11:35:17

Generally, ordinary directly buried prefabricated insulation pipe, when using common insulation materials, can withstand a maximum temperature of around 120 degrees Celsius. Within this temperature range, the insulation material has a stable structure, maintains good insulation and physical properties, and ensures the normal operation of the pipeline. High-temperature resistant directly buried prefabricated insulation pipe produced using special formulas and processes can withstand temperatures up to 150°C or even higher. However, it should be noted that prolonged exposure to extremely high temperatures will accelerate the aging of insulation materials, leading to a decline in insulation performance. It may also affect the performance of the outer protective pipe and steel pipe, shortening the service life of the pipeline. In practical applications, it is necessary to accurately select the appropriate type of directly buried prefabricated insulation pipe based on the temperature of the conveyed medium to ensure that the pipeline operates within a safe temperature range.

Time：05/12/2025 17:34:34