Rack Fluid Network
KX-UQD Q4
Blind-Mate Quick Disconnect Set
A UQD-standard coupling pair that mates under pressure with under 0.05 mL of spill and survives 5,000 cycles.
- Rated capacity
- 60 kW
- Per rack
- 60 kW
- Nominal Delta-T
- 10 K
- Nominal flow
- 86 L/min
- Supply water
- W17 – W45 (17 – 45 °C)
- Max pressure
- 6.0 bar
- Working fluid
- PG25 or treated water
Everything else in a liquid loop can be perfect and the deployment will still fail if the couplings drip. The Q4 is the part that decides whether your operations team trusts the technology.
Under a drop
A Q4 disconnect releases less than 0.05 mL of coolant — visibly a droplet on the face of the coupling, not a run down the rack. Mating admits under 0.03 mL of air, which matters because entrained air is what makes a pump cavitate three weeks later.
Five thousand cycles
We cycle test to 5,000 mates with no measurable degradation in seal performance. In a colocation rack where a chassis might be swapped monthly for a decade, that is the entire service life with margin left over.
Blind-mate tolerance
A server slid into a rail does not arrive at the same coordinate twice. The Q4 body floats ±2.5 mm in the bracket, so the coupling finds the port instead of the technician finding the coupling.
Technical data
Full specification
Values are at nominal duty. Ask us for the full performance map if you are working outside these conditions.
| Standard | UQD-compatible |
|---|---|
| Rated flow | 86 L/min |
| Heat carried at 10 K | 60 kW |
| Spill per disconnect | < 0.05 mL |
| Air inclusion per mate | < 0.03 mL |
| Mating cycles | 5,000 |
| Blind-mate float | ±2.5 mm |
| Maximum working pressure | 6 bar |
| Burst pressure | 24 bar |
| Body material | 316L stainless steel |
| Seal material | EPDM, dual with containment groove |
| Mated length | 52 mm |
Module 05 — Flow envelope
Delta-T against required flow
This unit rejects 60 kW. Widening the temperature difference across the loop cuts the volume of water you have to move — and pump power falls with roughly the cube of flow.
- Required flow
- 86 L/min
- Return temperature
- 40.0 °C at W30 supply
- Relative pump power
- 100 % of nominal
Water at 4.18 kJ/kg·K, density taken as 1 kg/L. Pump power index scales with the cube of the flow ratio against this unit’s nominal 10.0 K design point.
Related
Others in this range
KX-MANIFOLD V42
Vertical Rack Manifold, 42 U
A 42 U stainless supply-and-return pair that splits rack flow across 24 chassis without a single threaded joint inside the cabinet.
- Capacity
- 200 kW
- Per rack
- 200 kW
- Delta-T
- 10 K