Modern data centers deploy high-density servers, GPU computing hardware and power supply modules, all relying on liquid circulation to dissipate concentrated heat. Cabinet interiors are filled with cables, metal brackets and hardware components, leaving narrow and irregular routing space. Rigid hard tubes are difficult to turn and arrange, while ordinary hoses either lack sufficient bending capacity or cannot match diversified flow requirements. Flexible data center cooling pipeline ranging from DN12 to DN50 acts as standardized fluid cooling heat dissipation hose. The matched range of pipe diameters balances bending convenience and conveying capacity, meeting the layout demands of terminal branch pipelines and main circulating pipelines inside computer rooms.

All DN12 to DN50 specifications adopt dedicated composite materials suitable for data center coolant circulation. The inner lining features low fluid permeability and smooth surface texture, compatible with deionized water, ethylene glycol mixed antifreeze and other common cooling media. It will not swell, precipitate impurities or scale after long-time flowing medium scouring, keeping heat transfer efficiency stable and preventing pipeline blockage or hardware contamination. The middle reinforcing layer controls pipe wall expansion under continuous circulating pressure to avoid bulging deformation and hidden leakage risks. The outer protective layer resists daily cabinet friction, dust accumulation and indoor temperature variation, slowing material aging caused by long-term constant-temperature operation.

The complete DN12–DN50 size system forms clear application grouping according to flow and installation space characteristics. Small calibers DN12, DN16, DN20 are mainly used for single server cold plate connection, small power module liquid cooling pipelines. These sizes feature high flexibility to wind through narrow gaps between server trays and cabinet beams. Medium calibers DN25, DN32 serve rack-level manifold connecting pipelines, responsible for coolant distribution of multiple servers within one cabinet. They balance flow volume and bending performance for most conventional cabinet liquid cooling schemes. Large calibers DN40, DN50 are configured for horizontal and vertical main pipelines between cabinets and outdoor chillers, supporting large-volume coolant transportation to bear the overall heat dissipation load of cabinet clusters.

Flexibility is the core design highlight of this series cooling hose. The layered composite structure abandons excessive rigid reinforcement, allowing the pipeline to bend at multiple angles without dead folding. Even when arranged around cabinet metal edges and cable harnesses, the inner flow channel will not be squeezed closed to affect fluid circulation. All structural layers are tightly bonded via integrated molding. Repeated tiny vibration generated by running servers will not trigger interlayer separation, bubbling or liquid seepage. Smaller diameters deliver stronger softness, while large sizes retain proper rigidity to avoid sagging caused by gravity and fluid weight.

The unified production standard of DN12-DN50 brings convenience to centralized construction of data centers. Construction personnel select corresponding calibers based on hydraulic calculation and measured space, and cut the hose to required length on site. The pipeline matches mainstream quick connectors, pipe clamps and distribution manifolds widely used in liquid cooling projects, supporting fast assembly and later disassembly during cabinet capacity expansion. When separating cooling pipelines from power cables, flexible pipelines can be routed along independent cable trays neatly. After installation, pressure testing and visual inspection of all sizes can follow unified standards, simplifying construction quality management.

For operation and maintenance teams, the full-size flexible cooling hose facilitates routine inspection. The outer wall is easy to observe for leakage, scratches and aging hardening. Fixed pipe supports can be arranged at unified intervals for DN12 to DN50 pipelines to reduce pulling force on joints. When local equipment needs maintenance or replacement, the flexible pipeline can be slightly moved to reserve operating space without dismantling long-distance pipeline sections. Stable material performance reduces regular replacement frequency, lowering long-term operation and maintenance costs of large-scale data centers.