AI Data Centers
- Challenge
- GPU racks reject more heat than air can remove, and the load swings with every training run.
- Response
- Direct-to-chip loops served by centralized CDUs, with variable-speed pumping that follows the load.
Liquid cooling infrastructure
Liquid Cooling for AI at Scale.
From rack-level CDUs to multi-megawatt cooling infrastructure, LINKWAVE engineers integrated thermal systems for AI, HPC and next-generation data centers.
- Liquid cooling engineering
- 10+years
- Related patents
- 70+
- Units / sets delivered
- 8,000+*
- Centralized CDU reference scale
- 2.5MW
* Across the full liquid-cooling portfolio, including power-electronics and energy applications as well as data centers.
System architecture
Cooling infrastructure from chip loop to facility loop.
IT loop
01 / 09 · Heat source
GPU / CPU
By others
Processor heat flux sets every downstream requirement: coolant supply temperature, flow per server and allowable pressure drop.
02 / 09 · Chip-to-liquid heat transfer
Cold plate
Interface
Coolant passes through a plate mounted on the processor. Its flow and pressure-drop figures are the design inputs for the manifold and CDU.
03 / 09 · In-rack distribution
Rack manifold
LINKWAVE scope
A stainless manifold in each rack divides supply flow between servers and collects the return through 12 mm EPDM hoses.
View productSecondary loop
04 / 09 · Local coolant distribution
Rack / in-row CDU
LINKWAVE scope
Where load is distributed or facility water is unavailable, a CDU at the rack or row conditions and circulates coolant close to the IT equipment.
05 / 09 · Technology cooling system
Secondary cooling loop
LINKWAVE scope
Sanitary-grade stainless aisle piping carries treated water between the racks and the CDU. Typical supply and return: 40 / 55 °C.
View product06 / 09 · Loop isolation and control
Centralized CDU
LINKWAVE scope
A plate heat exchanger separates the IT loop from facility water. Dual variable-speed pumps hold flow and pressure. Reference units: 500 kW and 2.5 MW.
View productPrimary loop
07 / 09 · Facility water system
Primary cooling loop
LINKWAVE scope
Facility water carries heat from the CDUs to the heat-rejection plant. Water quality is managed by make-up, dosing and filtration on this side.
08 / 09 · Primary circulation
Primary-side pump station
LINKWAVE scope
Skid-built pumps with variable-frequency drives, storage, make-up and dosing. 125 kW to 2.5 MW, 10–250 m³/h.
View product09 / 09 · Heat rejection
Dry cooler / cooling tower / chilled water
Interface
Three reference arrangements: isolated CDU with chilled water; isolated CDU with cooling tower and pump station; direct-connected CDU with dry cooler and online purification.
Heat travels from chip to heat rejection. Select a stage for detail.
Solutions
Engineered around the workload.
Hyperscale
- Challenge
- Cooling has to repeat across halls and sites at multi-megawatt scale without redesign each time.
- Response
- 2.5 MW centralized CDUs and primary-side pump stations built as repeatable blocks with common parts.
HPC
- Challenge
- Dense clusters run at sustained full load, so the loop has no idle hours for maintenance.
- Response
- Redundant pumps replaceable online, filter bypass, and sanitary-grade stainless distribution.
Colocation
- Challenge
- Tenants bring different densities, and liquid cooling often has to be added to a live facility.
- Response
- Isolated CDUs keep each technology loop separate from facility water, starting from a 500 kW cabinet unit.
Modular AI Infrastructure
- Challenge
- Compute capacity is needed before a conventional mechanical plant can be built on site.
- Response
- Cooling plant integrated and tested at the factory, then shipped as enclosures or base-frame assemblies.
Scale
From rack-level cooling to multi-megawatt infrastructure.
Rack
Rack CDU
Row
In-row CDU
Room
Centralized CDU
500 kW – 2.5 MW
Facility
Primary-side infrastructure
125 kW – 2.5 MW per station
Modular
Prefabricated / containerized cooling
Outlines are schematic and not to scale.
Products
Major equipment families.
CDU systems
Centralized CDU
500 kW – 2.5 MW
Separates the secondary (IT) loop from the primary (facility) loop through a plate heat exchanger, and controls secondary flow, pressure and supply temperature.
Dual-pump, isolated design in cabinet and frame-mounted formats.
ExplorePrimary cooling
Primary-side pump stations
125 kW – 2.5 MW
Moves heat from the centralized CDUs to dry coolers, cooling towers or a chilled-water plant, and holds primary-loop temperature under changing load.
Variable-frequency pumping with closed-loop load feedback.
Explore
Distribution
Manifolds and distribution
Distributes secondary-loop coolant from the CDU along the aisle and into each rack, and returns it.
Sanitary-grade stainless steel, assembled without thread tape or sealant.
Explore
Racks
Liquid-cooled racks
Houses the IT equipment and terminates the secondary loop at the server through an integrated rack manifold.
Manifold, hoses and switchgear integrated at the factory.
ExploreControls
Controls designed with the hydraulics.
Control cabinets and the operator interface are designed and built in-house for each system. Pumps and heat-rejection fans run on variable-frequency control, with Ethernet / Modbus communication available as an option.
Modular cooling
Cooling infrastructure, factory-integrated.
Prefabricated liquid-cooling infrastructure designed to reduce on-site integration complexity and support rapid deployment of high-density computing capacity.
- 01Engineer
- 02Factory integrate
- 03FAT
- 04Transport
- 05Site connect
- 06Commission
United States / High-density computing
2.5 MW Liquid-Cooled Computing Integration
- Cooling scale
- 2.5MW
- Racks
- 20
- Centralized CDU
- 1
- Piping network
- Integrated
- Dry cooler
- Integrated
Twenty liquid-cooled racks, one centralized CDU, the piping network, switchgear and a dry cooler, integrated on a common base frame and delivered as one indoor system.
Field proven
Built to keep cooling.
Reliability is designed into the hydraulics: what can fail is duplicated, and what needs service can be reached without stopping flow.
- Pump redundancy
- Redundant pumps can be replaced while the unit is online.
- Filter bypass
- Filters are serviced without interrupting coolant flow.
- Clean joints
- No thread tape or sealant anywhere in the wetted loop.
- Common parts
- Parts are shared across the series and held in stock.
Engineering
Engineering beyond the equipment.
LINKWAVE engages before procurement. Bring a thermal load and a set of constraints, and the first output is a cooling architecture.
- 01Define
- IT load and rack density
- Facility water conditions
- Redundancy and interfaces
- 02Model
- Design calculations
- Layout plan
- Process flow diagram
- 03Engineer
- 3D modelling
- Electrical schematics
- Controls and HMI design
- 04Build
- Sheet metal and piping
- Control cabinet production
- Assembly and wiring
- 05Test
- Performance testing
- Functional testing
- Factory acceptance test
- 06Deploy
- Packaging and logistics
- Commissioning
- Operator training
- 07Support
- Remote diagnosis
- Spare parts from stock
- Warranty to project terms
Pre-sales engineering package
- Design calculation document
- Layout plan
- Process flow diagram
- 3D model
- Electrical schematic
- HMI design
Global deployment
Delivered across five regions.
North America
Southeast Asia
Middle East
Equipment delivered. No public project reference.
India
Equipment delivered. No public project reference.
China
Regions show where equipment has been delivered. They do not indicate LINKWAVE offices or service centers.
Planning your next liquid-cooled facility?
Bring us your thermal load, rack density, facility constraints or RFP. Our engineering team can help define the cooling architecture.