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Danfoss

CDUs & Direct Liquid Cooling

Danish engineering group whose Danfoss Hansen line makes quick-disconnect couplings for liquid cooled electronics and data centres, including UQD and MQD/MQDB couplings. The MQD/MQDB data sheet states compliance with NVIDIA's MQD/MQDB specification 3.2, 7 bar operating pressure, stainless steel bodies, EPDM seals and 100% helium leak testing.

Visit website: Danfoss (opens in a new tab)

Editorial summary written from public information, last checked 18 Oct 2026 by CoolPower Index research (automated, sourced). A listing means the company publicly offers products or services in the categories shown. It is not an endorsement, quality rating or proof of any project contract. Definitions.

Evidenced capabilities

Product families

Danfoss Hansen MQD and MQDB couplings Shipping

ParameterValueRating conditionsSource
Operating pressure7 barnot disclosedassets.danfoss.com
Sizes02, 03, 04not disclosedassets.danfoss.com
Flow range2.04-6.81 L/minper data sheet (search-index summary, flow table not parsed)assets.danfoss.com
Materials304 stainless steel, EPDM sealsnot disclosedassets.danfoss.com
Specification complianceNVIDIA MQD/MQDB Specification 3.2not disclosedassets.danfoss.com

Product source

Danfoss Hansen UQD couplings Shipping

Specifications not disclosed in the sources reviewed.

Product source

Geographic evidence

Countries without a source are shown as not disclosed. That means we found no public evidence, not that the company does not serve them.

Ownership and corporate notes: Privately held group. Ownership not re-verified this run.

Sources (5), last checked 18 Oct 2026
  1. Danfoss Hansen MQD and MQDB data sheet (opens in a new tab), Danfoss, accessed 18 Oct 2026
  2. Danfoss Power Solutions launches MQD and MQDB quick-disconnect couplings (opens in a new tab), Danfoss, accessed 18 Oct 2026
  3. Thermal management quick disconnect couplings (opens in a new tab), Danfoss, accessed 18 Oct 2026
  4. Danfoss Hansen Universal Quick Disconnect (UQD) fact sheet (opens in a new tab), Danfoss, published 2026-01, accessed 18 Oct 2026
  5. MQD/MQDB OCP Design Specification 1.0.0 (opens in a new tab), Open Compute Project, published 2026-10, accessed 18 Oct 2026

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