Stainless Steel Cooling Pipe For Data Center
China Super Tech Co., Ltd. has launched Stainless Steel Cooling Pipe for Data Center, which is a core liquid cooling piping system specifically designed for high-density computing data centers. This product is made of 316L austenitic stainless steel substrate and combines internal wall electrolytic polishing technology, significantly reducing fluid friction resistance and enhancing corrosion resistance. In response to the extremely high heat flux density of server clusters, this piping system can precisely eliminate local hotspots through efficient liquid cooling medium circulation, ensuring that IT equipment operates at safe temperatures at full load, and is a key infrastructure for building highly reliable, low PUE value green data centers.
Product Introduction
Product features
Exceptional leak-proof and pressure-resistant performance
Unlike the conventional ordinary argon arc welding in the industry, we adopt the automated track TIG welding process, with the weld depth reaching 100%. This eliminates false welding and gas pores. Combined with the material properties of 316L stainless steel with 2% molybdenum added, it can resist the micro-electrolytic corrosion of coolant while being able to withstand a sudden water hammer impact of up to 2.5 MPa, completely eliminating the occurrence of liquid leakage in the machine room.
Low flow resistance and high heat exchange efficiency
The inner wall of the pipeline is treated with electrolytic polishing technology, which uses electrochemical dissolution to remove microscopic burrs on the surface, reducing the roughness of the inner wall to Ra ≤ 0.4 μm. This not only reduces the flow resistance of the cooling fluid by more than 30%, reducing the energy consumption of the circulating pump, but also prevents micro-particles from adhering to the pipe wall, ensuring long-term stable heat dissipation performance.
Ultra-long lifespan and maintenance-free design
The external surface layer is treated with acid pickling and passivation, resulting in the formation of a dense chromium-rich oxide film (Cr2O3) with a thickness greater than 2nm. This passivation film enables the pipeline to maintain excellent resistance to salt spray and chloride ion pitting even in a high-temperature and high-humidity computer room environment of 40℃/90%RH. The designed service life exceeds 20 years, achieving maintenance-free throughout the entire life cycle.
Application
High-density AI and HPC computing clusters
For AI computing nodes with a single cabinet power density exceeding 30kW, traditional air cooling has reached its physical thermal limit. Our stainless steel piping system supports high-flow, low-temperature difference cooling fluid circulation at a fast rate, which can precisely remove the huge heat generated by the GPU cluster, avoiding frequency reduction and computing power loss caused by local hotspots.
Coastal and high-humidity data centers
In such environments, the concentration of chloride ions in the air is high, and ordinary metal pipes are highly prone to stress corrosion cracking. Our 316L material combined with the passivation process has constructed a dual defense line of both physical and chemical nature against chloride ion corrosion, ensuring that the cooling pipelines will not be penetrated even under harsh external conditions, thus guaranteeing the continuous operation of the data center.
Immersion-type and cold plate-type liquid cooling cabinets (CDU)
The liquid cooling system has extremely high requirements for the chemical compatibility of the pipelines, and there are frequent internal water hammer effects. The high-strength welding and low-resistance design of this product perfectly match the ethylene glycol water solution or fluorinated liquid circulation inside the CDU. It can withstand the pressure fluctuations caused by frequent start-stop operations and does not react chemically with any types of cooling fluids.
Customized service
China Super Tech Co., Ltd. transforms the technical barriers of our products into your customized advantages. As the original manufacturer of Stainless Steel Cooling for Pipe Data Center, we not only provide pipes, but also offer system-level solutions
Fluid Mechanics Customization
With our in-house micro-channel flow field simulation team, we can customize the inner diameter and wall thickness of the pipeline based on your specific heat flow density, achieving the ultimate balance in flow distribution.
Customized avoidance for abnormal spaces
To address the issue of limited space in old data centers, we employ high-precision CNC pipe bending technology (with a bending radius of up to 1.5D) to customize multi-dimensional bent pipelines without damaging the crystal structure. This ensures seamless integration into your cabinets.
Quick-connect interface with precise depth matching
Offer full-size customization from DN15 to DN50, and can be integrated with leak-proof quick connectors as per your requirements, perfectly matching your existing water distributors and blind plug interface standards.
Specifications
|
Parameter Item |
Specification Index |
Technical Basis / Description |
|
Material |
316L (UNS S31603) |
2% molybdenum added, ultra-low carbon (C ≤ 0.03%) to prevent intergranular corrosion. |
|
Pipe Diameter Range |
DN15 – DN50 |
Supports non-standard size customization to meet different flow requirements. |
|
Working Pressure |
1.6 MPa (Normal) / 2.5 MPa (Peak) |
Orbital TIG full-penetration welding ensures high-pressure leakage prevention. |
|
Inner Surface Roughness |
Ra ≤ 0.4 μm |
Electropolishing process reduces flow resistance by up to 30% and prevents particle adhesion. |
|
Operating Temperature |
-40°C to +120°C |
Suitable for environments ranging from extremely cold regions to high-temperature coolant circulation systems. |
|
Surface Treatment |
Pickling & Passivation (Inner & Outer) |
Forms a chromium-rich passive film with salt spray resistance exceeding 1000 hours. |
|
Connection Method |
Flange / Leak-Free Quick-Connect Fittings |
Customizable according to customer CDU interface standards. |
FAQ
Why not choose copper pipes or plastic pipes (PVC/PPR) with lower costs for the cooling pipelines in data centers?
Copper pipes are prone to pitting corrosion in environments with chloride ions, and they have low hardness, which makes them prone to deformation under water hammer impact. Although plastic pipes are corrosion-resistant, they have an oxygen permeation problem, which can cause oxidation of other metal components inside the system, and they have poor pressure resistance and aging resistance. Our 316L stainless steel pipes undergo electrolytic polishing and passivation treatment, combining the high strength of metals, zero permeability, and extreme corrosion resistance. Their service life lasts up to 20 years, and the overall holding cost is much lower than that of copper pipes and plastic pipes.
The computer room has zero tolerance for liquid leakage. How do you ensure the absolute safety of the pipeline connections?
Liquid leakage often occurs at the welds and joints. China Super Tech Co., Ltd. uses 100% automated track TIG welding, eliminating the instability of manual welding and ensuring that each weld achieves full penetration of the pipe wall. In addition, all factory-purchased pipelines undergo helium leak testing and pressure retention tests at 1.5 times the working pressure. The leakage rate is lower than 1×10⁻⁹ Pa·m³/s, physically preventing the possibility of leakage.
Our data center is undergoing expansion. How will the compatibility of the new and old pipeline systems be addressed?
This is precisely the core advantage of our customized services. We can complete the pre-installation of connectors and sealing tests before the pipeline leaves the factory, based on the interface protocols of your existing system (such as specific brand quick connectors or flange standards). At the same time, for the possible issue of different pipe diameters in the old system being connected in series, we can customize transition pipe fittings of different diameters to ensure a smooth connection between the new and old systems, without the need for downtime for renovation.
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