Can PE pipe be kept warm?

As a commonly used pipe, PE pipe has attracted much attention to its thermal insulation performance. "Whether PE pipe can keep warm" is a concern of many project builders and users. In fact, PE pipe itself has certain thermal insulation performance, but its thermal insulation effect varies in different scenarios. Under specific needs, additional measures need to be taken to improve thermal insulation performance.

PE pipe can keep warm because of its low thermal conductivity. Thermal conductivity is an indicator of the heat conductivity of a material. The lower the value, the better the thermal insulation performance of the material. The thermal conductivity of PE pipes is generally about 0.42W/(m ? K). Compared with metal pipes, such as steel pipes, the thermal conductivity of PE pipes is 45W/(m ? K). The thermal conductivity of PE pipes is much worse, which makes the heat transfer in the PE pipe slower, which can reduce the heat loss to a certain extent. For example, in the PE water pipe system for conveying hot water, the PE pipe itself can slow down the conduction of hot water heat to the external environment, maintain the stability of the water temperature within a certain period of time, and meet the hot water transportation scenarios with short distances or low thermal insulation requirements.

However, the thermal insulation performance of PE pipes also has limitations. In some occasions with high thermal insulation requirements, such as long-distance hot water transportation in central heating systems, outdoor water supply pipelines in cold areas, etc., it is difficult to achieve the ideal thermal insulation effect only by relying on the thermal insulation capacity of the PE pipe itself. As the conveying distance increases or the ambient temperature decreases, the heat will continue to be lost through the PE pipe, resulting in a drop in water temperature and affecting the use effect. In addition, in extremely low temperature environments, the water in the PE pipe still has the risk of freezing, which may cause problems such as pipeline rupture.

In order to meet higher thermal insulation requirements, in practical applications, additional thermal insulation measures are often required for the PE pipe. The common practice is to wrap thermal insulation materials on the outside of the PE pipe, such as polyurethane foam thermal insulation pipe shell, rock wool thermal insulation cotton, etc. Polyurethane foam insulation pipe shell has the advantages of low thermal conductivity, good thermal insulation performance, waterproof and moisture-proof, and can closely fit the surface of PE pipe to form a good thermal insulation layer; rock wool insulation cotton has the characteristics of high temperature resistance and strong fire resistance, which is suitable for high temperature hot water transportation scenarios that require fire protection. By wrapping the thermal insulation material, the heat transfer efficiency can be greatly reduced, the thermal insulation effect of PE pipe can be enhanced, and the medium temperature in the pipeline can be maintained within a reasonable range in various complex environments.

In the engineering construction of Xiaochang County, Dawu County, Yunmeng County, Yingcheng City, Anlu City, Hanchuan City, etc., the selection of high-quality PE pipe products and professional manufacturers is the basis for ensuring the quality of the project. As a professional PE pipe manufacturer, Hubei AD Building Materials Co., Ltd. produces PE pipes, PE water pipes and other products, which not only have good basic performance, but also provide professional suggestions and solutions on pipeline insulation according to customer needs. The company strictly controls every link from raw material procurement to production and processing to ensure reliable product quality. Whether it is an ordinary use scenario or a project with special requirements for insulation, Hubei AD Building Materials Co., Ltd. can provide customers with suitable pipes and supporting services. If you have PE pipe procurement or insulation technology consulting needs, please call 17399989993, the company will serve you wholeheartedly.

PE pipe has certain thermal insulation performance, but it needs to be matched with additional thermal insulation measures in high-demand scenarios. Hubei Gong Yuan Building Materials Co., Ltd. with high-quality products and professional services, help Hubei Xiaochang County, Dawu County, Yunmeng County, and Yingcheng City, Anlu City, Hanchuan City and other places in the construction of various projects, for the efficient and stable operation of the pipeline system to provide reliable guarantee.