Pre insulated pipes for chilled water are excellent insulation materials with the following performance characteristics:
1. Low engineering cost: Pre insulated pipes for chilled water can reduce engineering costs. According to relevant departments' calculations, using prefabricated insulation pipes for dual pipe heating pipelines can reduce project costs by about 25% (using fiberglass as the protective layer) and 10% (using high-density polyethylene as the protective layer).
2. Low heat loss and energy conservation: Pre insulated pipes for chilled water have a low thermal conductivity, much lower than other commonly used pipeline insulation materials in the past, and their insulation effect has been improved by 4-9 times. In addition, its water absorption rate is very low, about 0.2kg/m2. The reason for low water absorption is that the closed cell rate of polyurethane foam is up to 92%.
3. Small land occupation, fast construction, and favorable environmental protection: Directly buried heating pipelines do not require the construction of large trenches, only the insulation pipes need to be buried underground, greatly reducing project land occupation, reducing earthwork excavation by more than 50%, and reducing civil masonry and concrete volume by 90%. At the same time, the processing of insulation pipes and on-site trenching are carried out in parallel, with only on-site joints required, which can shorten the construction period by more than 50%.
4. Safety: The insulation pipe can be equipped with a leakage alarm line. Once a leakage occurs in a certain part of the pipeline, the accurate location and degree of leakage of the insulation pipe can be displayed on a dedicated detection instrument through the transmission of the alarm line, so as to notify the leakage detection personnel to quickly handle the leaking pipe section and ensure the safe operation of the heating network.
Performance of pre insulated pipe for chilled water：
1.Polyurethane insulated steel pipes have low thermal conductivity and good thermal performance, making them currently the most cost-effective among insulated pipelines.
2.Polyurethane insulated steel pipes have waterproof and moisture-proof properties, with a hard polyurethane sealing rate of over 90%.
3.Hard polyurethane is fire-resistant, flame retardant, and high-temperature resistant. After adding flame retardants, polyurethane is a fire-resistant and self igniting material that only decomposes at higher temperatures; In addition, polyurethane will form ash on the surface of foam when burning. This layer of ash helps to isolate the foam below and effectively prevent the spread of fire. Moreover, polyurethane does not produce harmful gases at high temperatures.
4.The pore structure of polyurethane material is stable, basically a closed pore structure, which not only has good thermal insulation performance, but also has good freeze-thaw resistance and sound absorption performance. Under normal use and maintenance conditions, the average life of rigid foam polyurethane thermal insulation structure can reach more than 30 years.
Xingbang Company is a professional manufacturer of insulation and anti-corrosion pipelines with over 20 years of production experience. If you need more detailed information, please feel free to contact us at any time!
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