Server & CDU OEM Programs

Your CDU. Your port map. Your label on a standard interface.

CDU scale now runs from 15–125 kW in-rack units with 10–70°C supply windows, through 70–850 kW in-row systems, up to 2–4 MW facility plants — and every one of them terminates in connections someone has to service. DryLink builds those connections to your drawing: OCP UQD interfaces, engineer-to-order manifolds, FAI and PPAP files, white-label packaging.

Interface Matrix

Which interface mates where in a CDU loop.

An OEM catalog spans more than one coupling family. This is the matrix we design against — quote us any row of it.

Interface / parameter	Mating style	Typical position in the loop
UQD hand-push	manual push-to-connect, latching	node and service drops — 0.55–4.7 GPM by size, OCP Rev 1.0
UQDB blind-mate	rack-level blind mating, latch-free	manifold-to-tray and busbar drops, 0.8–1.3 mm class alignment compensation
LQC	screw-to-connect, threaded lock	CDU supply/return terminations — Meta-initiated OCP work item
Size classes	UQD02 / 04 / 06 / 08 — 1/8" to 1/2"	one envelope across the loop, Cv 0.25–2.50
Plug ends	ORB straight, ISO 11926-3	manifold ports and rigid pipework, -04 to -10 stud ends
Socket ends	barbed for reinforced EPDM hose	hose assemblies from 1/4" to 5/8" ID
Spill control	dry-break both sides, 0.020–0.070 ml @0 psi	service without draining the loop
In-rack CDU	15–125 kW class	rack-level distribution, supply windows down to 10–70°C
In-row CDU	70–850 kW class	row-level plants feeding multiple racks
Facility CDU	2–4 MW+ class	building-level plants — interfaces move to large-bore lines
Port sizing basis	1.2 L/min per kW	an 80 kW rack circulates about 96 L/min
Rack ΔP budget	18 psi class, whole rack	server modules alone take about 56% — the manifold gets what is left

CDU cabinet with engineer-to-order manifolds and UQD coupling sets

White-Label Programs

Built to drawing, documented like your own production.

OEM programs fail on paperwork, not on parts. Every DryLink batch ships with the file set your quality gate expects: ballooned FAI, CMM dimensions, per-batch leak and pressure records, and PPAP-format documentation on request. Assembly is torque-controlled with batch traceability, so serial number ranges line up with your BOM revisions.

The OCP UQD interface stays standard underneath your label — deliberately. Your CDU then mates with cold plates and manifolds from any compliant vendor, which is the argument your own sales team needs when a customer asks the lock-in question.

48 h DFM — written review against your ΔP budget before tooling
FAI / PPAP — first-article files in your template, on request
Your label — marking, packaging and docs under your brand, under NDA

OEM Program Flow

Six steps from interface list to recurring batches.

Each step has a deliverable on our side and a defined input on yours — no open-ended engineering loops.

Interface mapping

You send the CDU loop diagram with the interface list: UQD, UQDB or threaded positions, flow per branch, coolant family. We confirm coupling sizes and the port map in writing before costing. Your part: the current-rev drawing and target annual quantities.

DFM review · 48 h

A written DFM report returns inside 48 hours: bore sizing checked against your pressure budget, wall thickness, seal compound per temperature, port interface verification. With server modules already taking ~56% of rack pressure drop, the review defends what margin remains. Your part: one call window with your hardware owner.

Prototype samples

First articles are machined on the same cells that will run the batch, then 100% pressure tested with results reported against the DFM notes. Standard coupling samples ship in 15 days. Your part: approve the sample, or mark it up and we cut again.

FAI / PPAP

Ballooned first-article inspection with full CMM dimensions; PPAP-format documentation supports OEM quality gates. Wetted materials and seal compounds are declared per lot. Your part: your quality template, so the file lands in your system in your format.

Batch + 100% test

Production runs torque-controlled with batch traceability; every coupling passes vacuum-decay leak testing and cleanliness targets the ISO 4406 18/16/13 code. Reports enclose each batch. Your part: a release schedule matched to your integration calendar.

White-label ship

Your marking and packaging: individual coupling cartons of 10×10×5 cm at 0.2 kg, manifolds trayed in foam, full document set enclosed. Quoted FOB, CIF or DDP. Your part: consignee details and preferred terms per destination.

FAQ

OEM program questions, answered with numbers.

Can you build couplings and manifolds under our private label?

Yes. Marking, labels and packaging follow your brand standard, documentation lands in your document format, and the program runs under NDA. The OCP UQD interface stays standard, so your loops remain multi-vendor.

Can one manifold mix different interface types?

Yes. UQD hand-push and UQDB blind-mate ports can sit on the same manifold body, with ORB threaded ends per ISO 11926-3 or hose barbs. There is no fixed industry port-count standard, so the port map follows your drawing.

What volumes and lead times can an OEM program expect?

MOQ starts at 50 pieces and standard sets ship in 15 days. Custom manifolds typically run 30–45 days after drawing approval, with batch capacity quoted per program once the DFM review fixes the configuration.

Send the interface list. Get the DFM report in 48 hours.

CDU OEM couplings and manifolds — MOQ from 50 pieces, standard sets ship in 15 days, white-label packaging, FOB · CIF · DDP.

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