Port column on an Open Rack V3 manifold, couplings set at equal spacing on a dark plate

Rack manifolds · ORv3 blind-mate

ORv3 blind-mate manifolds

Name: ORv3 Blind-Mate Manifold
Brand: DryLink

An Open Rack V3 tray docks against one shared datum, and every tolerance on this page is measured from it.

Request port drawing

Port pitch · industry practice 1.89 in / 48.00 mm

Radial absorbed · industry-published benchmark ±5 mm radial

Angular absorbed · industry-published benchmark ±2.7° angular

One datum, three owners

Rack · tray · manifold · one origin

Row of manifold ports at equal spacing, couplings level along a single datum line

Port pitch

1.89 in / 48.00 mm, per Open Rack V3 port spacing. industry practice

Datum origin

A single origin shared by rack, tray and manifold. One origin is what keeps a mixed-generation row from drifting port by port.

Why it compounds

A rack runs 40-plus ports off that pitch (industry designs). A 1 mm error at the origin is re-read at every one of them.

Scale authority

The pitch ruler below is authored SVG, not a photograph: one scale, one tick per port, datum line through.

Every tick

One port

48.00 mm centre to centre · 1.89 in · industry practice

Datum line

Runs the full row

The dashed rule through the ticks is the origin every port is dimensioned from

Dual scale

EIA 44.45 mm / ORv3 48 mm

Both rungs exist in the field; this page is the 48 mm one. The EIA rung (1.75 in / 44.45 mm, industry practice) is on the horizontal manifold page.

What the interface absorbs

Radial · angular · stack-up

Radial

±5 mm

What a BMQC-class blind-mate interface absorbs across the dock. industry-published benchmark

Angular

±2.7°

Angular deviation the same interface class absorbs. industry-published benchmark

Stack-up

Three terms

Rack squareness + tray tolerance + manifold mounting. Computed and written down before tooling starts, not after.

Send the stack-up

Checked before assembly, filed after

CMM · per serial number

Probe tip indexing the port positions along a manifold, measuring scale alongside — Pitch re-checkCMM

Pitch report sheet laid beside the manifold port row it documents — Report filedBy serial number

01
Error compounds. One millimetre of pitch error is re-read at 40-plus ports (industry designs), so a manifold that is nominally right can still fail to dock.
02
Pitch is re-checked on a coordinate measuring machine before assembly, not on the first rack it meets.
03
The pitch report is filed against the manifold serial number, so a rack audit years later has something to open.

The cold-plate side of the dock

UQDB plug family · compatible with

Blind-mate plug entering a manifold port, guide features visible at the interface

Cold-plate side

UQDB plug family. The interface is compatible with the OCP UQDB specification, and the port end this page dimensions is the manifold half of that pair.

Pitch datum

48.00 mm port spacing per Open Rack V3. industry practice

Mixed-generation racks

Where EIA and ORv3 rows share a room, we run a pitch audit before quoting rather than after delivery.

Audit template

Available on request: a one-page sheet that records the measured pitch and the datum you are dimensioning from.

The other two rungs

Vertical 0U · horizontal front-mount

Tall vertical manifold body standing against a rack rear door

Vertical 0URear-door mount · full height

Horizontal manifold tube spanning the front of a rack bay

HorizontalFront mount · configurable length

Dock, datum and where they are made

Seven states · one pitch

Datum face and first port of a manifold in close view — Datum faceOrigin of the row

Plug and socket meeting at a manifold port at the moment of alignment — DockDeviation absorbed

Rack panel with knurled coupling rings and braided hoses in a dark enclosure — Rack sideThe panel that docks

Vertical 0U manifold standing against a rack rear door — Line · vertical 0URear-door

Horizontal manifold tube running across the front of a rack bay — Line · horizontalFront mount

ORv3 manifold with an evenly spaced port column on a dark plate — Line · ORv3This page

Eight stainless blind-mate couplings arranged in four pairs, ascending diagonally on a dark ground — Cold-plate sideUQDB plug family

Stainless quick-disconnect coupling seen from above on a dark plate

Spec sheet request

Which pitch is your rack actually on?

Send the rack drawing, the tray or node model and the pitch you measure today. A BMQC-class interface absorbs ±5 mm radial and ±2.7° angular (industry-published benchmark), so the audit is usually about confirming the datum, not re-cutting the manifold.

Request port drawing One business day · English quote + a one-page spec sheet