A landmark project in Qingdao's heating history, this project replaced 1476 meters of DN900 pipeline, supporting the heating load of approximately 8 million square meters of residential space.
DN900 large-diameter prefabricated direct-buried polyurethane insulated pipe. Designed for humid underground environments, the pipe utilizes 3PE external anti-corrosion technology, combined with a high-density polyethylene outer protective pipe. Its insulation layer has a thermal conductivity ≤0.033W/(m·K), effectively reducing long-term heat loss.
No.1 Haodeboer Road, Qingdao, Shandong, China
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