Danfoss Hansen® Universal Quick Disconnect (UQD)
One partner, every solution
Solutions to your liquid cooling challenges
Danfoss' direct-to-chip cooling solutions extend into the racks through efficient routing of flexible, kink-free hoses, and leak-free, helium-tested couplings.
Danfoss has a comprehensive portfolio of premium fluid conveyance products to meet your thermal management system needs.
UQD Universal quick disconnect coupling
Designed for high flow rate and no spillage, the UQD coupling is perfect for in-rack applications with smaller hose lines.
Product Features
- Designed per OCP (Open Compute Project) UQD specification
- Push-to-connect design
- High flow and no spillage
- Double shut off - flat face valves
- Exceeds OCP flow ratings at least by 25% resulting in reduction in overall energy consumption
- Best in class force to connect
- Standard material: 303 stainless steel provides broad fluid compatibility
- Standard seal material: EPDM
- Color anodized aluminum sleeves
- Color coded (red/blue) sleeves on socket and O-rings on plug
- Compact socket versions for sizes -02, -04, -06 to better fit in data center applications
- Wide range of terminal end options: ORB, BSPP on plug and push on hose on socket. Additional configurations available upon request
- Operating temperature -40°C to +150°C
- Typical working pressure: 6.9 bar, up to 20 bar for smaller sizes
- QR code identification to help track parts
Technical Specifications
| Size | Body Dia. (mm) | Max operating pressure | Min burst pressure | Rated Flow* (lpm) | Cv max. | Air Fluid Loss max. | ||
|---|---|---|---|---|---|---|---|---|
| Socket / Female Half (bar/psi) | Plug / Male Half (bar/psi) | Socket / Female Half (bar/psi) | Plug / Male Half (bar/psi) | |||||
| UQD02 (1/8 in) | 3.16 | 20 / 290 | 20 / 290 | 60 / 870 | 60 / 870 | 2.1 | 0.33 | 0.004 |
| UQD04 (1/4 in) | 6.3 | 16 / 232 | 16 / 232 | 48 / 696 | 48 / 696 | 6.4 | 1.37 | 0.024 |
| UQD06 (3/8 in) | 7.9 | 6.9 / 100 | 6.9 / 100 | 20.7 / 300 | 20.7 / 300 | 11.4 | 2.34 | 0.011 |
| UQD08 (1/2 in) | 10 | 6.9 / 100 | 6.9 / 100 | 20.7 / 300 | 20.7 / 300 | 17.8 | 5.32 | 0.029 |
*Defined per OCP specifications, Rated Flow is the reference flow rate used to measure pressure drop and determine the published Cv (flow coefficient)
Performance Parameters
| Size | Force to Connect (N/lb) | Recommended Torque (N-m) | ORB size | BSP Size |
|---|---|---|---|---|
| UQD02 | 48 / 10.79 | 11-12 (ORB) / 8-9 (BSP) | 7/16-20 | 1/8" |
| UQD04 | 50 / 11.24 | 18-20 (ORB) / 18-20 (BSP) | 9/16-18 | 3/8" |
| UQD06 | 73 / 16.41 | 52-57 (ORB) / 18-20 (BSP) | 3/4-16 | 3/8" |
| UQD08 | 87 / 19.56 | 58-64 (ORB) / 34-37 (BSP) | 7/8-14 | 1/2" |
Seal Elastomer Data
| Seal Elastomer | P/N Code | Operation Temperature Range (°C / °F) |
|---|---|---|
| EPDM | -40°C to +150°C / -40°F to +302°F |
Applications & Markets
- Liquid cooling application
- Data center application
Flow Data
Flow at 5m/s (lpm / gpm)
| Size | Flow at 5m/s (lpm) | Flow at 5 m/s (gpm) |
|---|---|---|
| UQD02 | 2.4 | 0.62 |
| UQD04 | 9.4 | 2.5 |
| UQD06 | 14.7 | 3.9 |
| UQD08 | 23.6 | 6.2 |
Dimensions
Socket (Female) part
| UQD | Part number | Order number | Thread / end size | Fig. n° | Dimensions (mm/in) | Hex (mm/in) | |||
|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | ||||||
| UQD02 | 2UQS25HABLS11 2UQS25HARDS11 |
2UQS25HABLS11 2UQS25HARDS11 |
1/4 | 1 | 38.4 / 1.51 | 18.5 / 0.73 | 14.0 / 0.55 | 19.1 / 0.75 | |
| UQD04 | 4UQS37HABLS11 4UQS37HARDS11 4UQS25HABLS11 4UQS25HARDS11 |
4UQS37HABLS11 4UQS37HARDS11 4UQS25HABLS11 4UQS25HARDS11 |
3/8 1/4 |
1 | 49.5 / 1.95 51.2 / 2.01 |
24.6 / 0.97 | 19.0 / 0.75 19.0 / 0.75 |
23.7 / 0.93 22 / 0.87 |
|
| UQD06 | 6UQS50HABLS11 6UQS50HARDS11 |
6UQS50HABLS11 6UQS50HARDS11 |
1/2 | 1 | 52.3 / 2.06 | 27.8 / 1.10 | 23 / 0.9 | 25.8 / 1.01 | |
| UQD08 | 8UQS62HABL 8UQS62HARD |
8UQS62HABL 8UQS62HARD |
5/8 | 2 | 68.4 / 2.69 | 35 / 1.38 | 30 / 1.18 | 39 / 1.54 | 27 / 1.06 |
Note 1: To obtain connected length of coupling, add dimensions A (Fig. 1) and G (Fig. 2) together. Note 2: For color options, RD suffix corresponds to RED and BL suffix to BLUE.
Plug (Male) part
| UQD | Part number | Order number | Thread / end size | Fig. n° | Dimensions (mm/in) | Hex (mm/in) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| E | F | G | H | J | |||||||
| UQD02 | 2UQP430RMBL 2UQP43ORMRD 2UQP12MBSBL 2UQP12MBSRD |
2UQP430RMBL 2UQP43ORMRD 2UQP12MBSBL 2UQP12MBSRD |
7/16-20 (ORB) 1/8 (BSP) |
4 5 |
6.65 / 0.26 | 16.17 / 0.64 17.32 / 0.68 |
8.7 / 0.34 | 9.1 / 0.36 8 / 0.31 |
29.3 / 1.15 30.4 / 1.20 |
14 / 0.55 15 / 0.59 |
|
| UQD04 | 4UQP560RMBL 4UQP56ORMRD 4UQP37MBSBL 4UQP37MBSRD |
4UQP560RMBL 4UQP56ORMRD 4UQP37MBSBL 4UQP37MBSRD |
9/16-18 (ORB) 3/8 (BSP) |
4 5 |
11.07 / 0.44 | 19.63 / 0.77 25.40 / 1.00 |
9.8 / 0.39 | 9.9 / 0.39 11.2 / 0.44 |
37.9 / 1.49 | 17 / 0.67 22 / 0.87 |
|
| UQD06 | 6UQP750RMBL 6UQP750RMRD 6UQP37MBSBL 6UQP37MBSRD |
6UQP750RMBL 6UQP750RMRD 6UQP37MBSBL 6UQP37MBSRD |
3/4-16 (ORB) 3/8 (BSP) |
4 5 |
14.3 / 0.56 | 25.40 / 1.00 | 10 / 0.39 | 11.1 / 0.44 11.2 / 0.44 |
41.6 / 1.64 | 22 / 0.87 | |
| UQD08 | 8UQP870RMBL 8UQP87ORMRD 8UQP50MBSBL 8UQP50MBSRD |
8UQP870RMBL 8UQP87ORMRD 8UQP50MBSBL 8UQP50MBSRD |
7/8-14 (ORB) 1/2 (BSP) |
4 5 |
17.48 / 0.69 | 31.18 / 1.23 34.64 / 1.36 |
12 / 0.47 | 12.7 / 0.50 14.5 / 0.57 |
47.6 / 1.87 | 27 / 1.06 30 / 1.18 |
|
Note 1: To obtain connected length of coupling, add dimensions A (Fig. 1) and G (Fig. 2) together. Note 2: For color options, RD suffix corresponds to RED and BL suffix to BLUE.
