These custom 304 stainless steel CDU liquid cooling pipe assemblies connect coolant distribution units, manifolds, heat exchangers, pumps, and facility-side or technology-side loops. The photographed configuration combines formed tube sections, welded joints, branches, and bolted flange ends in a compact routing envelope. Each assembly is produced from an approved drawing to match the required equipment layout and connection standard.
Product Specifications and Custom Options
| Product type | Custom CDU liquid cooling pipe and loop assembly |
|---|---|
| Material shown | 304 stainless steel |
| Construction | Formed straight and curved tube sections with welded and machined flange interfaces |
| Configuration options | U-loops, return bends, offset spools, branches, manifold connections, equipment risers, and custom routed assemblies |
| End connections | Bolted flanges shown; sanitary, threaded, grooved, welded, or project-specific interfaces available after review |
| Tube size and wall | Selected from flow, pressure, temperature, corrosion allowance, fabrication, and installation requirements |
| Surface condition | Bright finished stainless shown; pickling, passivation, polishing, cleaning, and controlled internal cleanliness available |
| Inspection options | Dimensional inspection, weld examination, pressure or leak testing, cleanliness verification, and documentation packages |
| Manufacturing basis | Project drawing, piping specification, connection standard, and approved inspection/test plan |
Product View
The gallery image shows several representative custom routing forms, including a large-radius return loop, a compact offset section, welded branch geometry, and machined flanges. The parts are examples of drawing-based fabrication rather than a universal stocked size.
Design and Ordering Considerations
CDU pipework must be coordinated with the coolant, flow rate, design pressure and temperature, allowable pressure drop, connection standard, installation space, support points, thermal movement, equipment vibration, and maintenance access. Please provide an isometric drawing or 3D model with centerline dimensions, tube outside diameter and wall thickness, flange details, weld requirements, and datum scheme.
For data-center liquid cooling, also define the fluid chemistry, internal-cleanliness target, flushing process, particle-control requirement, leak-test method, and packaging standard. Material and sealing compatibility should be confirmed for the complete cooling circuit.
Key Features
- Drawing-based pipe routing for compact CDU and manifold installations
- 304 stainless steel construction for clean, corrosion-resistant coolant circuits
- Integrated bends, branches, and flange connections reduce field assembly points
- Machined flange faces support controlled alignment with mating equipment
- Custom tube diameter, wall, bend radius, flange pattern, and routing available
- Optional pressure, leak, cleanliness, passivation, and traceability documentation
Typical Applications
- Coolant distribution units for data centers
- High-performance computing and supercomputing liquid-cooling systems
- Cold-plate and rear-door heat-exchanger loops
- Manifold, pump, heat-exchanger, and separator connection piping
- Secondary cooling circuits for electronics and industrial equipment
Quality Control and Inspection
Quality planning can include incoming material verification, tube and flange dimensional checks, fixture-controlled assembly, weld procedure and visual inspection, optional penetrant or radiographic examination where specified, flange alignment checks, pressure or leak testing, internal cleaning, passivation verification, and final documentation review. Acceptance criteria follow the approved drawing and inspection plan. Learn more about AODSON quality control and assurance.
OEM Customization and RFQ Requirements
For an accurate quotation, provide the 2D drawing or 3D model, coolant type, design pressure and temperature, tube OD and wall, connection and flange standards, routing dimensions, weld class, test method and pressure, surface treatment, internal cleanliness requirement, quantity, and documentation needs. Browse related pipe fittings and couplings or request a quote for engineering review.
Frequently Asked Questions
Can you manufacture a complete CDU loop from our 3D model?
Yes. A 3D model is useful for routing, but a controlled drawing should also define materials, tube wall, connection details, tolerances, weld requirements, testing, and acceptance criteria.
Can the assembly be pressure-tested and cleaned before shipment?
Yes. Pressure or leak testing, flushing, internal cleaning, passivation, and protected packaging can be included when the required methods and acceptance limits are specified.
Is 304 stainless steel suitable for every coolant?
No material is universal. Suitability depends on fluid chemistry, chloride content, inhibitors, oxygen, temperature, contamination, and galvanic interactions. Confirm compatibility for the complete system before finalizing the grade.




