Data Center Liquid Cooling

Danfoss Data Center Liquid Cooling Solutions

Revolutionizing Thermal Management with Precision and Performance

In today’s high-density computing environments, traditional air cooling is no longer sufficient. With the rise of AI workloads, hyperscale deployments, and cloud services, data centers demand innovative, energy-efficient cooling strategies that can handle increasing thermal loads. Danfoss, a global leader in fluid conveyance and thermal solutions, has engineered a cutting-edge liquid cooling portfolio to meet these demands—offering direct-to-chip cooling systems that deliver unmatched performance, reliability, and sustainability.

Why Liquid Cooling?

Liquid cooling isn’t just a trend—it’s a transformative technology. Compared to air-based methods, liquid cooling offers:

• 1000x greater cooling capacity
• 25x better heat transfer
• Up to 40% energy savings
• 10x less energy use for heat removal

It enables greater chip density, lowers the carbon footprint, and simplifies maintenance compared to immersion cooling or hybrid air-liquid setups. At the heart of this shift is Danfoss’ mission to make liquid cooling efficient, resilient, and scalable.

Source Line Solutions

Danfoss’ source line components are designed to transfer coolant from the distribution unit (CDU) to the server rack, while maintaining full-flow, leak-free performance and ease of installation.

FD83 Series – Full-Flow Dual-Interlock Coupling

The industry standard in reliable cooling connectivity, the FD83 is made of stainless steel or engineered plastic and features:

• Dual-interlock safety with a patented locking mechanism
• Identical coupling halves for simplified logistics
• Full-flow design with low spillage
• Sizes: 1" and 2"; Port options: ¾", 1", 2"
• 100% helium leak tested

MLDB Series – Flat Face, Dry Break Coupling

Ideal for applications requiring minimal fluid loss and clean disconnection:

• 316 stainless steel construction
• Flat-face, no-spill design with color coding
• Easy connection with integrated pre-guiding system
• Sizes from ¼" to 1"
• Leak-free performance in source and rack installations

FC332 – Socketless Hose

• CPE-based construction with textile reinforcement
• Excellent kink resistance
• Operating range: -40°C to +150°C
• Sizes: -04 to -12
• Compatible with socketless fittings for easy tool-free installation

Boston Royal™ EHW194 – EPDM Hose

• Flame-resistant (UL94 V-0), smooth, and kink-resistant
• Tight bend radius, multiple color options
• Operating range: -40°C to +140°C
• Pressure rated at 16 bar (232 psi)
• Sizes: -4 to -16 (excluding -5)

Socketless Fittings

These brass or stainless steel fittings are designed for rapid deployment:

• No clamps or tools needed
• Compatible with FC332, GH109, and EHW194 hoses
• Configurable ends for various port requirements

90° Swivel Adapters – FF4514 & FF4521 Series

Designed for angled routing and compact installations:

• 304 stainless steel construction
• Leak-free, corrosion-resistant design
• Full swivel functionality
• 100% helium leak tested
• QR-coded for traceability
• Operating temperature: -3°C to 60°C

Inner Rack Solutions

Within the rack, Danfoss delivers high-flow, leak-free connections that ensure optimal thermal transfer directly to server chips—especially where space and access are limited.

OCP ORV3 BMQC – Blind-Mate Quick Disconnect

• Designed for Open Compute Project (OCP) compliance
• Hands-free, self-centering with misalignment compensation
• Stainless steel body, EPDM seal
• Ideal for tool-less server-to-manifold connections

ADB Series – Flat Face Coupling

• Lightweight aluminum or stainless steel (MLDB)
• Color-coded, dry-break with flat-face design
• No-spill performance from ¼" to 1"
• Perfect for inner rack configurations

UQD – Universal Quick Disconnect

• Push-to-connect mechanism for fast, leak-free engagement
• Compact, high-flow design
• Sizes: UQD02 to UQD08
• 100% helium tested for reliability

UQDB – Universal Blind-Mate Quick Disconnect

• Self-aligning coupling with 1 mm radial compensation
• Designed for tight rack access or automated connection systems
• Sizes available: UQDB02 to UQDB06 (UQDB08 in development)

Boston Royal™ EHW194 – Repeated Use

As with source lines, this hose provides:

• Flame-rated, tight-radius routing
• Long life and chemical compatibility
• Qualified for both push-on and crimp fittings

Danfoss is not only meeting the rising thermal demands of modern data centers—they're setting the benchmark for what’s possible. Their comprehensive liquid cooling portfolio spans every connection point, from CDU to chip, ensuring:

• Maximum performance
• Minimal maintenance
• Global scalability
• Sustainable operation

Whether you're designing new hyperscale facilities or retrofitting for higher efficiency, Danfoss delivers fluid conveyance solutions you can trust—backed by decades of proven expertise.