Data Center Liquid Cooling

Why Liquid Cooling?

For increased performance, energy efficiency, and cost savings, direct-to-chip liquid cooling is essential. Danfoss fluid conveyance solutions unlock the full potential of your data center while simplifying installation and maintenance.

Energy Sustained

Danfoss' direct-to-chip liquid cooling improves data center Power Usage Effectiveness (PUE) by efficiently and cost-effectively removing heat emitted by server processors.

Performance Unleashed

The thermal efficiency and reduced space requirements of liquid cooling enable increased chip density, unlocking your data center's full potential. Danfoss hoses and connectors route coolant from the source to the chip, ensuring high-performing processors run smoothly, even during peak loads, providing consistent computing power and increased performance.

The Power of Water

It's better at cooling

• 1,000x more cooling capacity
• 25x better heat transfer
• 10x less energy use

It's better for your business

• 40% energy use reduction
• Greater chip density with fewer racks
• Easier to maintain than immersion cooling

It's better for the environment

• Smaller carbon footprint
• Minimal water use
• Reduced refrigeration

The Danfoss Way

For decades, Danfoss fluid conveyance experts have shaped the direct-to-chip liquid cooling market, delivering high-performance source line and rack cooling solutions with a focus on ease of installation and service.

Up to 40% energy use reduction with water cooling.

One Partner, Every Solution

Danfoss offers a comprehensive portfolio of premium fluid conveyance products for thermal management. Products are designed to work in concert for a high-performing source-to-rack cooling solution.

Creative Design Solutions

Danfoss fluid conveyance solutions provide the flexibility needed to design the ultimate data center. Products are designed for tight spaces, simplifying installation and maintenance for efficient system operation.

Making Cutting-Edge Simple

Danfoss liquid cooling systems bring peace of mind and resiliency. Features include hoses with the highest-level flame rating (UL94 V0) and individually leak-tested dry-break couplings, delivering market-leading technology optimized for performance and reliability.

Experts Everywhere

Danfoss are liquid cooling experts, pioneering leak-free quick disconnect technology with IBM decades ago and remaining at the forefront of the industry. A global team ensures customers have what they need to succeed.

A Member of OCP

Danfoss is a Solution Provider of the Open Compute Project (OCP), a collaborative organization standardizing hardware design for data centers. Danfoss helps set industry standards.

Making Connections You Can Count On

From main supply lines to single point connections, Danfoss provides the hardware for your data center's cooling system.

Danfoss FF4514 and FF4521 90° Swivel Adapter Families

Specifically developed for liquid cooling hose assembly connection.

Danfoss Hansen® FD83 Series Full-Flow Dual-Interlock Coupling

An industry standard, our stainless steel FD83 has been supporting data center liquid cooling reliably for decades.

Boston by Danfoss Royal™ EHW194 EPDM Hose

Engineered for durability and ease of use, EHW194 hoses feature industry-leading safety ratings, superior kink resistance, and long-lasting performance.

A diagram illustrating a data center rack with source line connections. It shows hoses and couplings leading from a main supply to a Cooling Distribution Unit (CDU) within the rack. Key components highlighted include the Danfoss FF4514/FF4521 Swivel Adapters, Danfoss Hansen FD83 Series coupling, and Boston by Danfoss Royal EHW194 hose.

• ✔️ Fluid compatibility
• ✔️ Full flow
• ✔️ Ease of use
• ✔️ Reliability

Source Line Solutions

Every data center has different requirements. Danfoss fluid conveyance solutions enable the engineering of the safest and most efficient thermal management system.

Couplings

• Leak-free and corrosion resistant
• 100% helium leak tested
• Patented locking mechanism prevents disconnection during flow
• Unlimited configuration options

FD83 Series Full-Flow Dual-Interlock Coupling (Stainless Steel)

• Details: 303 Stainless steel or engineered plastic, EPDM standard seal, locking pin design, lever handle, identical coupling halves.
• Specifications: Highest flow and low spillage, 100% helium leak tested, Sizes: 1" and 2", Port Connections: 3/4", 1", and 2".
• Pairs with: FC332, EHW194.

Hoses

Features: Full, unrestricted flow and excellent kink resistance. Multiple size and specification options. Hoses with UL94 V0 rating lead the industry. Tested for compatibility with standard coolant solutions.

FC332 Socketless Hose

• Details: CPE tube and cover, textile braid reinforcement, UL94 HB compliant, excellent kink resistance.
• Specifications: Operating temperature: -40°C to +150°C (-40°F to 302°F), Sizes: -04, -06, -08, -10, -12.

Boston Royal EHW194 Rubber Hose

• Details: EPDM tube and cover, two-ply textile reinforcement, UL 94 V-0 rated, smooth, kink resistant hose with tight bend radius. Qualified with push-on & crimp fitting options.
• Specifications: Multiple color options, Operating temperature: -40°C to +140°C (-40°F to 284°F), Sizes -4 thru -16 (except -5), 16 bar (232 psi). Available with thin-wall for improved flexibility and lower bending radius.

Fittings

Socketless Fittings: Brass or stainless steel, configurable end connections, no tools or clamps required. Qualified with FC332, GH109, and EHW194 hoses.

Adapters

90° Swivel Adapters: Swivelling functionality for easy and fast connection. Available for different hose sizes and port threads. 304 stainless steel material provides broad fluid compatibility. Specifications: Standard seal material: EPDM (additional available), Operation temperature range: -3°C min (26.6°F) to 60°C max (140°F). 100% of production parts are helium leakage tested. Production related QR code for easy traceability.

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 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.

Boston by Danfoss Royal™ EHW194 EPDM Hose

Engineered for durability and ease of use, EHW194 hoses feature industry-leading safety ratings, superior kink resistance, and long-lasting performance.

Danfoss Blind-Mate Hands-Free Self-Centering Quick Disconnect Coupling

The Blind-Mate's self-centering design offers misalignment compensation, ensuring simple and secure connection between the blade and rack manifold.

Danfoss UQD Blind-Mate

Offers a self-alignment feature to help connect in locations with limited access or visibility and guarantees 100% helium-leak testing on every coupling.

A diagram showing a data center rack's internal manifold system. It illustrates how Danfoss couplings, such as the Blind-Mate and UQD series, connect hoses to the rack manifold for efficient liquid cooling distribution within the server bays.

Inner Rack Solutions

Danfoss' direct-to-chip cooling solutions extend into the racks through efficient routing of flexible, kink-free hoses, and leak-free, helium-tested couplings.

Couplings

• No-leak, no-drip designs
• Corrosion-resistant anodized aluminum, stainless steel, or composite plastic options
• Deliver high flow and low pressure drop

OCP ORV3 BMQC Hands-Free Self-Centering Quick Disconnect Coupling

• Details: 303 stainless steel, EPDM seal, self-centering design with radial, angular, and axial misalignment compensation. Designed for hands-free connection.
• Specifications: Meets OCP standard, 100% helium-leak tested, Size: 3mm.

UQD Universal Quick Disconnect Coupling

• Details: 303 and 304 stainless steel, EPDM seal, push-to-connect design, meets OCP performance specifications.
• Specifications: High flow and no spillage, 100% helium leak tested, Sizes: UQD02, UQD04, UQD06, UQD08.

UQDB Universal Quick Disconnect Blind-Mate

• Details: 303 stainless steel, EPDM seal, meets OCP performance specifications.
• Specifications: Blind-connection thanks to self-alignment feature with radial compensation of 1 mm. Sizes: UQDB02, UQDB04, UQDB06. Size -08 coming soon.

Pairs with: EHW194, GH109.

Hoses

Boston Royal EHW194 Rubber Hose

• Features: Hoses with UL94 V0 rating lead the industry. Best-in-class rubber hoses and thermoplastic tubing form into shape for easier routing and perfect fit, while maintaining flexibility during installation.
• Details: EPDM tube and cover, two-ply textile reinforcement, UL 94 V-0 rated, smooth, kink resistant hose with tight bend radius for routing. Qualified with push-on & crimp fitting options.
• Specifications: Multiple color options, Operating temperature: -40°C to +140°C (-40°F to 284°F), Sizes -4 thru -16 (except -5), 16 bar (232 psi). Available with thin-wall: smaller diameter for improved flexibility and lower bending radius.

Refrigerant Solutions

Always innovating and evolving to deliver the latest in liquid cooling technology, Danfoss' refrigerant solutions meet the needs of the next generation of data center.

GH001 & EZ Clip Fittings (Refrigerant Solutions)

• Details: Thermoplastic veneer lining with elastomeric tube, synthetic elastomer cover, textile reinforcement. Lowest permeation assembly on the market. Maximum kink resistance and qualified at full vacuum.
• Specifications: Compatible with R134a, R1234yf, R407C, R404A, R12, 1234ze, 1233zd and other refrigerants. Sizes: -4, -6, -8, -10, -12, -16.