Who makes CDU internals for AI data centers
The internal components of a CDU — plate heat exchangers, pumps, and filters — that do the actual heat exchange, circulation, and particulate control inside the unit.
These are the working parts inside the CDU housing described in 5.05: the plate heat exchanger transfers heat from the technology-side loop to the facility water loop without mixing the two fluids, pumps circulate coolant through the cold plates and back, and filters keep particulates out of the narrow channels in the cold plates and manifolds upstream. Pump and heat-exchanger sizing scales with the CDU's rated capacity, from in-rack units up to facility-class systems, and redundancy (multiple pumps, N+1 configurations) is a common design response to the fact that a pump failure can take an entire loop offline. Some of these component makers also supply plate heat exchangers and pumps into the facility water loop in Layer 6, so the same vendors can appear on both sides of the chiller-to-chip chain. Investors should watch pump reliability and redundancy design as CDU capacity rises, and whether component vendors are captured by CDU integrators or continue to sell into the broader market.
Companies on this part (5)
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| Alfa Laval | manufacturer | public | ALFA.ST | 540 SEK | -0.2% | disclosed | · source |
| Kaori | manufacturer | public | 8996.TW | 1560 TWD | -7.4% | disclosed | · source |
| SWEP · unit of Dover | manufacturer | subsidiary | DOV* | inferred | |||
| Danfoss | manufacturer | private | disclosed | · source | |||
| Kelvion | manufacturer | private | disclosed | · source |
Pumps 5.06a
Filtration 5.06b
Who competes here
The same table read the other way: every company above competes for CDU internals: plate heat exchangers, pumps, filters sockets. Confidence tags matter — an inferred placement is a lead, not a confirmed rivalry.
Seen in real machines
CDU internals: plate heat exchangers, pumps, filters is named in 1 of the rack teardowns and supercomputer breakdowns on this site. Each line below is a piece of that machine. The companies shown are the ones named on that line, not necessarily the maker of this part.
- Nvidia GB300 NVL72 · rack teardown
Nearby parts
- Children: Pumps, Filtration
- Previous in layer: Coolant distribution units
- Next in layer: Rear-door heat exchangers
- Layer: Layer 5 — Liquid cooling (IT-side: chip to CDU)
From the blog
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- Interview: TI sees liquid cooling shift to tray-level control in AI data centers — DigiTimes, 2026-10-23Texas Instruments stated that the trend in AI data centers is moving toward granular, tray-level thermal control rather than relying solely on centralized CDU management.
- Trane Technologies to Acquire Cancoil, Strengthening Supply Chain Resiliency and Thermal Management Expertise — newsroom:trane, 2026-10-21Trane Technologies plans to acquire Cancoil to bolster its capabilities in thermal management and supply chain resilience for cooling solutions.
- Sponsored: Ablecom releases whitepaper introducing high-efficiency RDHx liquid cooling solution — Data Center Dynamics, 2026-10-20The whitepaper presents a high-efficiency liquid cooling solution designed to help data center operators manage heat loads up to 75 kW per rack and reduce PUE.
- Warm-water ready — Data Center Dynamics, 2026-10-15The report compares the performance and efficiency of two-phase versus single-phase direct-to-chip cooling solutions specifically on NVIDIA B200 server hardware.
- Samsung integrates AI into daily life as LG showcases smart factories, data-center cooling — DigiTimes, 2026-10-14Samsung is integrating AI into daily life while LG showcased smart factories and cooling solutions relevant to data centers.
- DIGITIMES Insight: AI data demand surges as power and cooling become new bottlenecks — DigiTimes, 2026-10-04Increasing AI data center demand is creating significant logistical and infrastructure bottlenecks specifically regarding power availability and cooling capacity.
- ZutaCore partners with Options Technology to offer liquid cooling to financial services — Data Center Dynamics, 2026-09-30ZutaCore has partnered with Options Technology to provide liquid cooling solutions specifically tailored for the financial services sector.
- Vertiv to Buy King Environmental Services to Bolster Data Center Cooling — HPCwire, 2026-09-24Vertiv announced plans to acquire King Environmental Services to expand its global thermal management services, particularly for liquid-cooled data centers.
- NVIDIA Announces DSX Ready Qualification Program for Data Center Power and Cooling Hardware — ServeTheHome, 2026-09-22NVIDIA launched the DSX Ready program, a qualification standard for data center power and cooling hardware used in AI data center construction.
- OData to deploy Aligned's DeltaFlow liquid cooling system at Brazil and Mexico data centers — Data Center Dynamics, 2026-09-21Aligned will deploy its DeltaFlow liquid cooling system in data center facilities in Brazil and Mexico for a total project cost of $630 million.
Questions about CDU internals: plate heat exchangers, pumps, filters
- What are CDU internals: plate heat exchangers, pumps, filters?
- The internal components of a CDU — plate heat exchangers, pumps, and filters — that do the actual heat exchange, circulation, and particulate control inside the unit.
- Which companies make CDU internals for AI data centers?
- This catalog lists 5 companies on CDU internals: plate heat exchangers, pumps, filters, 3 of them with listed equity: Alfa Laval, Kaori, SWEP, Danfoss, Kelvion.
- How reliable are these CDU internals: plate heat exchangers, pumps, filters supplier placements?
- The 5 placements on this part break down as 4 disclosed, 1 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a taxonomy lead with no citation yet.
Sources: placements without a source URL come from the taxonomy seed and are tagged accordingly. How this data is built.· Markdown · JSON