NVIDIA-Certified UQD Zero-Drip Quick Disconnect

UQD quick-disconnect couplings for liquid-cooled servers, with drip-free connection and disconnection.

Key specifications

MaterialStainless Steel / Aluminum Alloy
Installationtool-free blind mate, connectable under pressure
StandardOCP UQD interface, GB/T 4208
Typical substrateliquid-cooled servers and rack loops
Key inspectionsleak tightness, pressure drop, cycle life

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Product overviewOverview

UQD (Universal Quick Disconnect) is the common blind-mate interface for liquid-cooling loops. Both halves contain spring-loaded valves: on connection the two poppets push each other open, and on disconnection the springs return them to their seats so both sides close. That is what keeps leakage to drips when a node is pulled under pressure.

Material: Stainless Steel / Aluminum Alloy. It mates blind without tools, and connects under pressure.

Key featuresFeatures

Self-closing valves at both ends keep leakage low during pressure-side disconnection.
Blind-mate design tolerates radial and angular misalignment in confined racks.
O-ring radial seal with elastomer chosen for the coolant (EPDM for glycol-water).
Flow rate and pressure drop quoted so loops can be sized on thermal load.

Typical applicationsApplications

AI server and GPU rack cooling
Data centre cold-plate branches
Energy storage converter cooling

Selection notesSelection

Size on flow rate and allowable pressure drop, not on thread size alone.

Frequently asked questionsFAQ

How do I specify the NVIDIA-Certified UQD Zero-Drip Quick Disconnect?

Size on flow rate and allowable pressure drop, not on thread size alone. Material: Stainless Steel / Aluminum Alloy. It mates blind without tools, and connects under pressure.

What matters during installation of the NVIDIA-Certified UQD Zero-Drip Quick Disconnect?

Mate it blind without tools; the coupling connects under pressure. Self-closing valves at both ends keep leakage low during pressure-side disconnection.

Specifications

Material	Stainless Steel / Aluminum Alloy
Type	Quick-disconnect coupling
Standard	OCP UQD interface, GB/T 4208
Installation	tool-free blind mate, connectable under pressure
Typical substrate	liquid-cooled servers and rack loops
Key inspections	leak tightness, pressure drop, cycle life

Manufacturing and inspection

Leak test at 1.5 times rated pressure, checking valve seats and O-ring zone.We recommend a pilot assembly at the actual torque and mating part before locking the process parameters for volume.