Description
Explore liquid cooling connections. UQD, UQDB, BMQC, LQC & MQD series offer solutions for AI servers, HPC, and energy infrastructure.
Amphenol Industrial Operations introduces its complete range of liquid cooling connectors—designed to meet the demanding thermal requirements of modern data centers, AI platforms, EV charging systems, and energy storage. These rugged, stainless-steel couplings ensure leak-free operation, quick installation, and industry-standard interoperability. The UQD, UQDB, BMQC and LQC are fully compliant with the Open Compute Project (OCP), offering leak-free operation, fast installation, and long-term durability.
Table of Contents
- UQD – Universal Quick Disconnect
- UQDB – Universal Quick Disconnect Blind-Mate
- BMQC – Blind Mate Quick Connector (Open Rack V3)
- LQC – Large Quick Connector
- MQD – Mini Quick Disconnect
- Coolant Compatibility and Efficiency
- Applications for Liquid Cooling Systems
- Why Choose Amphenol for Liquid Cooling Systems
- Get Started
UQD – Universal Quick Disconnect
Engineered per OCP standards, UQD connectors offer aerospace-grade sealing, bidirectional dry-break valves, and fast plug-in installation. Available in sizes 02–08, with inline and right-angle options, UQD supports a variety of barb and threaded terminations.
UQDB – Universal Quick Disconnect Blind-Mate
UQDB expands on the UQD platform with blind-mate technology, including 1 mm radial self-alignment for tool-free installation in tight spaces. These couplings enhance installation speed while maintaining reliable sealing under pressure.
BMQC – Blind Mate Quick Connector (Open Rack V3)
Developed to meet the OCP Open Rack V3 standard, BMQC connectors offer ±5 mm radial and ±2.7° angular misalignment tolerance—ideal for high-density data centers and server manifolds. With 100% helium-leak testing and robust stainless steel construction, BMQC delivers unmatched reliability.
LQC – Large Quick Connector
Designed to OCP LQC standards, LQC connectors feature a 20 mm nominal flow path and a screw-to-connect locking mechanism. Ideal for large cold-plate systems, they provide tactile confirmation, superior sealing, and vibration resistance.
MQD – Mini Quick Disconnect
The MQD Series is tailored for space-constrained compute trays. Available in straight and right-angle configurations, MQD offers an ultra-small profile with reliable sealing, high flow, and low pressure drop in demanding thermal environments.
Coolant Compatibility and Efficiency
All connectors are compatible with deionized water, ethylene glycol, and propylene glycol. Available with EPDM, FKM, or FMVQ seals, they are engineered for long-term durability in harsh thermal environments.
Applications for Liquid Cooling Systems
- AI Data Centers – Efficient thermal management in high-density rack infrastructure
- EV Charging Infrastructure – Secure fluid pathways for power electronics and cooling loops
- Energy Storage Systems (ESS) – Safe coolant handling in battery packs and inverters
- High-Performance Computing (HPC) – Leak-free operation for compute-intensive environments
- Military & Aerospace Electronics – Field-proven durability under mission-critical conditions
- Server Manifolds – Simplified installation in modular liquid-cooled server environments
Why Choose Amphenol for Liquid Cooling Systems?
- Compliance with OCP specs across most connector families
- Blind-mate, screw-lock, and quick-connect options
- Stainless steel construction with corrosion-resistant finishes
- Low fluid loss and Cv values optimized for cooling efficiency
- Broad size range and terminations for flexible design integration
Get Started with Amphenol Liquid Cooling Systems
Contact Amphenol Industrial Operations today or download the spec sheet to learn how our full range of connectors can enhance your liquid cooling architecture.
Features & Benefits
Secure Fluid Connections: UQD and UQDB connectors feature aerospace-grade sealing and a bidirectional dry-break valve, delivering leak-free performance and minimizing the risk of coolant loss or accidental spillage.
Blind-Mate and Quick Connect Options: Choose between standard quick plug-in or blind-mate designs with 1 mm radial alignment compensation, facilitating seamless installation even in low-visibility or confined environments.
Durable Stainless Steel Construction: Constructed with corrosion-resistant stainless steel shells and springs, both series are built for long-term reliability in mission-critical liquid cooling systems.
Coolant Compatibility: Compatible with deionized water, ethylene glycol, and propylene glycol, these connectors address the varied thermal management needs of data centers, EVs, and energy storage systems.
Compact and Configurable: Available in four OCP-compliant sizes (02–08), with inline or right-angle styles, barb or threaded terminations, and optional flat-latch mechanisms to accommodate diverse system architectures.
Specifications
Electrical
Not applicable to this product type
These are mechanical fluid couplings
Mechanical
Working Pressure
0–0.6 MPa
Safe Pressure
1–2 MPa
Blind-Mate Tolerance
0-1 mm radial self-alignment
Material
Shell
Stainless Steel
Spring (Wetted)
Corrosion-resistant Stainless Steel
Seal Options
EPDM, FKM, FMVQ (selected based on coolant compatibility)
Termination Options
Hose barb, Male/Female thread (ORB, BSP)
Latch Type
Flat-design button
Environmental
Operating Temperature
40°C to +105°C
Coolant Compatibility
Deionized water, Ethylene glycol, Propylene glycol
Drip-Free Design
Yes (dry-break mechanism)
Compliance
OCP UQD & UQDB Spec Rev 1.0
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Amphenol Industrial's product lines consist of rectangular, standard miniature, fiber optic, EMI/EMP filter, and a variety of special application connectors.
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