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Component overview
Blind-Mate Quick Disconnect Couplings
A candidate family page for rack or equipment interfaces with controlled alignment.
- Hose size
- DN 03 to DN 12 nominal diameter range
- Working pressure
- 16 bar
Product family
Blind-Mate Quick Disconnects
Rack or equipment connections intended to mate through controlled alignment rather than direct hand access.
Component selection
All Product drafts
Private preview · candidate records
9 local draft records. Includes unfinished records and Family overviews. Draft · Noindex. Reference configurations are not approved stock. Image public-use review remains separate.
Show content-ready draftsLCP-000021
BMQC Blind-Mate Quick Coupling Pair — CEJN Reference
A CEJN BMQC blind-mate socket and plug with documented 5 mm nominal diameter, distinct ends and manufacturer alignment conditions that need rack-level…
- End connections
- Socket UNF 3/4-16 ORB; plug 3/8 inch
- Nominal flow diameter
- 5 mm
LCP-000014
Externally Retained Blind-Mate Coupling — MQDB Series Reference
A separately pictured MQDB blind-mate construction with no integral lock, documented alignment guidance and model-specific flow and socket-end examples from an official…
- Size specific recommended flow
- MQDB02 2.1; MQDB03 4.6; MQDB04 8.5; MQDB04 MINI 8.5 L/min
- Size specific socket plug end examples
- For MQDB03, the socket table lists G1/4 socket MQDB03-1432-G14 and the plug table lists…
LCP-000008
Fixed Blind-Mate Quick Coupler Configuration
A fixed-style blind-mate coupler series illustrated by a CYSBI08 example, intended for guided equipment mating with external locking and explicit mounting-tolerance review.
- Effective diameter options
- DN3 to DN12
- Body material
- Aluminum alloy
LCP-000016
Floating Blind-Mate Coupling — CGB Series Reference
A distinct CGB floating blind-mate socket-and-plug reference with external fastening, documented alignment claim and model-separated water-flow rows; not interchangeable by name with…
- Size specific recommended flow
- CGB03 2.1; CGB05 5.9; CGB08 15.1; CGB12 33.9 L/min
- Listed material choices
- Aluminum-alloy and stainless-steel part-code columns
LCP-000007
Floating Blind-Mate Quick Coupler Configuration
A floating blind-mate coupler series illustrated by a CYFBI03 example, with a documented external-retention requirement and manufacturer-stated misalignment accommodation that needs exact…
- Effective diameter options
- DN3 to DN12
- Body material
- Aluminum alloy
LCP-000022
Pivoting Blind-Mate Coupling — CEJN PBMC Series Reference
A distinct PBMC pivoting blind-mate coupling with fixed rear connections, self-centering engagement and manufacturer-scoped diameter, pressure and main-material data.
- Nominal flow diameter
- 12 mm
- Manufacturer max working pressure
- 5.2 bar
LCP-000006
UQDB04 Blind-Mate Quick-Disconnect Pair
A pictured UQDB04-size blind-mate socket and plug reference for serviceable liquid-cooling connections, with documented model-row interface and hydraulic coefficients rather than an…
- Nominal size
- 1/4 inch
- Equivalent diameter
- 5 mm
LCP-000020
UQDB08 Guided Blind-Mate Coupling Pair — CEJN Reference
A documented UQDB08 socket-and-plug example with separate CEJN order codes and unequal connection threads for guided rack or module engagement.
- End connections
- Socket UNF 1-1/16-16; plug UNF 7/8-14
- Nominal flow diameter
- 12.7 mm
Specify with confidence
The details that shape your selection.
Equipment datums, approach direction and alignment tolerances Mating travel, force requirement and installation envelope Exact counterpart and interface revision Fluid conditions, leakage criteria and service-cycle requirements Drawing revision, sample approval and quantity
- Function and loop position
- Interfaces, drawing revisions and envelope
- Coolant, materials and seals
- Temperature, pressure and flow conditions
- Testing and documentation
- Quantities and delivery requirements
Overview
Blind-mate couplings are installed through controlled equipment movement where direct hand access is limited. Their function depends on alignment, approach direction, travel and a matched counterpart.
Configuration and selection
Send equipment datums, tolerance stack, mating force or travel limits, fluid conditions and service-cycle expectations. Leakage and disconnect behavior need configuration-specific verification.
Information to prepare
- Equipment datums, approach direction and alignment tolerances
- Mating travel, force requirement and installation envelope
- Exact counterpart and interface revision
- Fluid conditions, leakage criteria and service-cycle requirements
- Drawing revision, sample approval and quantity
Configuration and quotation
Include the drawing or specification revision and identify any requirements that are still to be confirmed. Available configurations, testing and documentation are confirmed with quotation.
Documented reference configurations & supporting imagery
Local editorial preview
Documented configurations and product references
Manufacturer examples retain their model and conditions. These references describe source products, not approved stock or supply. Images are pending final selection and rights review.
Stäubli — CGO
| Parameter | Documented value / configuration |
|---|---|
| Mating style | blind-mate with self-alignment |
| Mounting | Axis misalignment compensation up to 0.5 mm mmConditions: manufacturer note: model and installation dependent |
| Hose size | DN 03 to DN 12 nominal diameter range |
| Working pressure | 16 barConditions: limit type: maximum allowable; qualification: depends on model and operating conditions |
| Coolant | glycol-water; cooling water; heat-transfer oils; esters; kerosene; PAO |
| Wetted material | nickel-plated brass for some CGO styles; surface-treated aluminum alloy for CGO/L |
CPC — family reference
| Parameter | Documented value / configuration |
|---|---|
| Interface designation | BLQ2; BLQ4 |
CPC — Everis BLQ4
| Parameter | Documented value / configuration |
|---|---|
| Port connection | SAE straight thread; G/BSPP thread |
| Disconnect state | Valved non-spill blind-mate connection intended to disconnect under pressure. |
| Leakage behavior | Spillage below 0.025 cc at 0 psi and below 0.055 cc at 120 psi |
| Temperature | -17 to 115 degrees C (0 to 240 degrees F) |
| Working pressure | Vacuum to 120 psi (8.3 bar) |
| Wetted material | brass body; high-performance polymer valve; stainless steel valve spring; EPDM seals |
| Mounting | Thread-mounted blind-mate body/insert; rack alignment system remains an application-level input. |
Danfoss — Hansen BMQC (2024 launch)
| Parameter | Documented value / configuration |
|---|---|
| Working pressure | 2.4 barConditions: 5 mm BMQC, not generic UQD/UQDB; limit: working pressure in 2024 BMQC announcement; not a UQDB rating |
| Flow | maximum: 10; rated: 6 L/minConditions: 5 mm BMQC, not generic UQD/UQDB; model: BMQC 5 mm |
| Pressure drop | 0.15 barConditions: 5 mm BMQC, not generic UQD/UQDB; flow: 6 L/min; fluid and temperature: Not stated in announcement; curve verification required |
| Wetted material | 303 stainless-steel coupling with EPDM sealConditions: 5 mm BMQC, not generic UQD/UQDB |
| Mounting | Radial offset up to 5 mm; angular offset up to 2.7 degreesConditions: 5 mm BMQC, not generic UQD/UQDB; installation: Self-aligning server chassis to rear-rack manifold; engineering drawing required |
Xinda Technology — UQDB04
| Parameter | Documented value / configuration |
|---|---|
| Nominal size | 1/4 inchConditions: scope: nominal interface designation, not actual bore |
| Equivalent diameter | 5 mmConditions: scope: manufacturer model row |
| Flow coefficient cv | 1.16Conditions: scope: Cv coefficient, not a flow-rate rating |
| Maximum insertion force | 60 NConditions: scope: manufacturer model row; method not stated |
| Plug end thread | 9/16-18 UNF-2AConditions: scope: plug-side part; exact order-code suffix not confirmed |
| Socket end thread | 3/4-16 UNF-2AConditions: scope: socket-side part; exact order-code suffix not confirmed |
Xinda Technology — CYFBI
| Parameter | Documented value / configuration |
|---|---|
| Effective diameter options | DN3 to DN12Conditions: scope: series range; select exact order code |
| Body material | Aluminum alloyConditions: scope: body statement; wetted material and coating need exact drawing |
| Maximum misalignment compensation | ±1.0 mmConditions: scope: manufacturer series claim; installed mounting and exact configuration must be verified |
| Retention | No integral locking; requires external structure for lockingConditions: scope: series description |
| Listed working pressure | 20 bar listed for the CYFBI series barConditions: scope: Manufacturer series summary; not a paired pressure-temperature-coolant approval or exact order-code rating |
| Listed operating temperature | -40 to +125 degCConditions: scope: Manufacturer series summary; seal, coolant and pressure-temperature pairing require exact configuration review |
Xinda Technology — CYSBI
| Parameter | Documented value / configuration |
|---|---|
| Effective diameter options | DN3 to DN12Conditions: scope: series range; select exact order code |
| Body material | Aluminum alloyConditions: scope: body statement; wetted material and coating need exact drawing |
| Maximum misalignment compensation | ±0.5 mmConditions: scope: manufacturer series claim; installed mounting must be verified |
| Retention | No integral locking; requires external structure for lockingConditions: scope: series description |
| Listed working pressure | 20 bar listed for the CYSBI series barConditions: scope: Manufacturer series summary; confirm exact fixed-mount pair and operating conditions |
| Listed operating temperature | -40 to +125 degCConditions: scope: Manufacturer series summary; not a universal seal or coolant compatibility claim |
Envicool — MQDB series
| Parameter | Documented value / configuration |
|---|---|
| Retention | No integral lock; externally fastenedConditions: scope: rack or module structure must provide retention |
| Claimed alignment compensation | plus or minus 1 mmConditions: scope: manufacturer series claim; installed datum stack and specific size must be checked |
| Size specific recommended flow | MQDB02 2.1; MQDB03 4.6; MQDB04 8.5; MQDB04 MINI 8.5 L/minConditions: scope: separate model rows, water at 20 degC, plug-to-socket, 5 m/s velocity criterion; not one family flow range |
| Socket end examples | MQDB02 UNF7/16-20; MQDB03 G1/4; MQDB04 G3/8Conditions: scope: example model rows; plug ends differ; exact order code and mating drawing required |
| Size specific socket plug end examples | For MQDB03, the socket table lists G1/4 socket MQDB03-1432-G14 and the plug table lists a 9 mm end MQDB03-7434-P9; the two half ends are different and code-specificConditions: scope: Example order rows only; verify mating, equipment-side guidance and external retention |
| Listed shell and seal options | MQDB technical summary lists SUS316L shell and EPDM or FVMQ sealing-ring optionsConditions: scope: Series options, not confirmation of every wetted material or coolant approval for one pair |
| Series pressure temperature reference | MQDB series summary lists working pressure 0–100 psi and working temperature -40 to +110 °C; the selected seal, pair and coolant require configuration review.Conditions: scope: Manufacturer series summary; not a combined end-code and coolant approval |
Envicool — CGB series
| Parameter | Documented value / configuration |
|---|---|
| Retention | No integral lock; externally fastenedConditions: scope: blind-mate structure requires equipment-level retention |
| Claimed alignment compensation | plus or minus 1.5 mmConditions: scope: manufacturer series claim; validate exact size, mounted stack and stroke |
| Size specific recommended flow | CGB03 2.1; CGB05 5.9; CGB08 15.1; CGB12 33.9 L/minConditions: scope: separate model rows, water 20 degC, plug-to-socket, 5 m/s velocity criterion; CGB10 appears in ordering table but not this flow row |
| Listed material choices | Aluminum-alloy and stainless-steel part-code columnsConditions: scope: material depends on exact code; seal and all wetted material need verification |
| Size specific socket plug end examples | For CGB03, the order tables separately list G1/8 male-thread socket CGB03.1342-G18 and plug CGB03.7342-G18 in stainless-code columns; alternate ends and body materials have other codesConditions: scope: Example series pair; verify mounted geometry, material, seal and selected mating halves |
| Listed seal options | CGB series summary lists EPDM and FVMQ sealing-ring options; the selected order code and coolant compatibility must be verified.Conditions: scope: Manufacturer series options, not proof of the pictured part's installed seal |
| Series pressure temperature reference | CGB series summary lists working pressure 0–100 psi and working temperature -55 to +120 °C; the selected pair, seal and coolant require configuration review.Conditions: scope: Manufacturer series summary; not a combined end-code and coolant approval |
CEJN — CEJN UQDB08 pair 10 153 1928 / 10 153 6928
| Parameter | Documented value / configuration |
|---|---|
| Documented mating part numbers | Socket 10 153 1928; plug 10 153 6928Conditions: scope: manufacturer order-code examples; rack datums and pair confirmation needed |
| End connections | Socket UNF 1-1/16-16; plug UNF 7/8-14Conditions: scope: different ends for these exact two rows; do not merge into one fitting |
| Nominal flow diameter | 12.7 mmConditions: scope: manufacturer nominal diameter, not measured flow rate |
| Manufacturer max working pressure | 10 barConditions: scope: these two CEJN rows; installed rack and coolant conditions not established |
| Listed seal material | EPDMConditions: scope: these two UQDB08 part numbers only |
CEJN — CEJN BMQC pair 10 153 1990 / 10 153 6990
| Parameter | Documented value / configuration |
|---|---|
| Documented mating part numbers | Socket 10 153 1990; plug 10 153 6990Conditions: scope: manufacturer order-code examples; mounted pair confirmation needed |
| End connections | Socket UNF 3/4-16 ORB; plug 3/8 inchConditions: scope: these two BMQC part numbers only |
| Nominal flow diameter | 5 mmConditions: scope: nominal bore, not a flow-rate guarantee |
| Manufacturer max working pressure | 3.45 barConditions: scope: manufacturer catalogue rating for specified pair only |
| Listed seal material | EPDMConditions: scope: these two BMQC part numbers only |
| Manufacturer alignment allowance | plus or minus 5 mm radial; plus or minus 2.7 degrees angularConditions: scope: series claim; installed geometry and load must be validated for the selected pair |
CEJN — CEJN PBMC series
| Parameter | Documented value / configuration |
|---|---|
| Nominal flow diameter | 12 mmConditions: scope: manufacturer PBMC page, not a particular part number |
| Manufacturer max working pressure | 5.2 barConditions: scope: series page summary; fluid, temperature and exact order code require checking |
| Main material | Stainless steelConditions: scope: main body material only; not full wetted-material declaration |
| Mating construction | Fixed backend with pivoting self-centering plug; socket mounts in rack or manifoldConditions: scope: manufacturer design description; installation geometry requires project drawing |
Configuration options and selection inputs
3 conflicting entries remain in the research review queue and are excluded from these specifications.
Selection resources
Know what to ask.
Selection guide
How to Prepare a QD or UQD Selection Enquiry
Define interface, service method, fluid conditions, materials, validation, and quantity before comparing coupling options.
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Separate the service architecture from the exact connector interface before preparing an RFQ.
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Selection guide
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A practical checklist for routed liquid-cooling assemblies.
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