Neumo UK stocks hygienic and industrial-grade stainless steel tube from ½” to 8″ (204 mm) OD for data centre coolant loops — 304 and 316L, with controlled internal surface finishes and EN 10204 3.1 certification, available next-day on stock lines from Telford.
Direct-to-chip cooling puts pipework quality on the critical path. Cold-plate microchannels are unforgiving of particulate, corrosion product and rough weld zones, so the tube feeding them needs the internal cleanliness the hygienic industries have specified for decades. That’s the stock Neumo holds.
Range at a glance
- Sizes: ½” to 8″ (204 mm) OD sanitary tube; metric and ISO ranges alongside
- Grades: 304 / 1.4301 and 316L / 1.4404 as standard; higher alloys available (see 316L and special alloys for coolant loops)
- Surface finish: hygienic finishes to DIN 11866 / BS 4825; ASME BPE SF1 (≤0.51 µm Ra) and SF4 electropolished (≤0.38 µm Ra) stocked ½”–6″
- Standards: ASTM A270/A249, EN 10217-7, ASME BPE
- Certification: material test reports to EN 10204 3.1, full heat traceability
- Availability: UK stock in Telford backed by group warehouses in Germany and Denmark — 1,800 tonnes of stainless product across the range
Why hygienic-grade tube in a cooling loop?
A smooth, passive bore sheds nothing into the coolant, gives biofilm no anchor point in warm glycol loops, and reaches commissioning cleanliness targets faster during flushing and passivation. The specification framework — Ra values, certified finishes, 3.1 documentation — already exists and is auditable, because pharma and food production demanded it long before AI racks did. Background: why internal surface finish matters in DTC loops.
Typical applications
Technology Cooling System (TCS) distribution, CDU connection pipework, secondary loops feeding rack manifolds, and skid fabrication for cooling OEMs. For larger-bore facility water duty, our EN 10217-7 pressure-rated metric tube system covers DN15–DN250+ with matching fittings and PN16 flanges.
Frequently asked questions
Do you cut tube to length?
We supply standard 6 m lengths; talk to us about project-specific requirements and kitting.
Is the tube orbital-weldable?
Yes — consistent wall thickness and controlled chemistry make it ideal for orbital TIG with internal purge.
Can you support both EU and US projects?
Yes. The NEUMO-Ehrenberg Group manufactures and stocks on both continents, with imperial and metric programmes.
Talk to us about your project
Kevin Windsor — Product Manager, Data Centre Liquid Cooling
kw@neumo.co.uk · 01952 583 999