The Safety Redline in High-Density BESS Thermal Management
As the global transition from air cooling to liquid cooling in Battery Energy Storage Systems (BESS) accelerates, system integrators and EPCs face a relentless challenge: Thermal Management Reliability.
In a megawatt-scale BESS container, miles of liquid cooling pipelines circulate glycol-water mixtures just inches away from high-voltage lithium battery cells. Under such high-density power environments, the rule is absolute: One single drop of micro-leakage can trigger catastrophic failure or thermal runaway.
The fluid connector is no longer just a piece of hardware—it is the safety redline of your entire asset investment.
If you are tired of dealing with loose connections, micro-weeping under high vibration, or incompatible chemical seals, here is the answer from a Chinese technical powerhouse.
Engineered by Veterans, Built for Zero-Leakage Performance
Our liquid cooling quick disconnect couplings (QDCs) are engineered by a core technical team originating from top-tier European industrial connection giants (such as STÄUBLI). We combined premium European design standards with highly optimized Chinese supply chain efficiency to deliver a product line that eliminates fluid leakage risks entirely.
Why global BESS manufacturers are shifting to our solutions:
100% Flush-Face Non-Drip Design: Our valving system guarantees zero fluid spillage during connection and disconnection, protecting your electronics from moisture.
Optimized for Coolants: Equipped with premium EPDM or FKM seals, thoroughly tested for years of continuous operation with mainstream cooling mediums.
Low Pressure Drop: Maximizes flow efficiency, reducing the overall power consumption of your BESS HVAC systems.
Our Core Product Lineup for BESS Liquid Cooling
We provide a comprehensive range of fluid connectors tailored for different nodes within the energy storage cooling loop. Below are our main product series:
CB Series: Ball-Lock Quick Couplings
Material: Aluminum Alloy / Stainless Steel
Flow Size (DN): 03 | 05 | 08 | 10 | 12 | 17 | 20
Applications: Manual connection for standard BESS & data center fluid cooling loops.
Pro-Keywords: Heavy-duty design, ergonomic manual operation, optimal flow rate.
Main technical performance of the diameter
Working temperature: -55 ℃ -125 ℃
Working pressure: 20Bar
Applicable medium: water glycol, cooling water
Leakage rate: less than 0.001ml/s under 3Bar gas test pressure
Corrosion resistance: Neutral salt spray test for over 192 hours
Impact resistance: peak acceleration 15g
Vibration resistance: random vibration 15 to 2000Hz, power Spectral density 0.04g2/Hz, duration 0.5h
Long service life: over 10000 times of plugging and unplugging
Additional Options
Optional self pressure relief to protect the cold plate from bulging
Optional with pressure plug and unplug, system achieves non-stop maintenance
*Please consult our sales engineer for details.
CS Series: Snap-Lock / Bayonet-Lock Couplings
Material: Aluminum Alloy / Stainless Steel
Flow Size (DN): 03 | 05 | 08 | 10 | 12 | 16
Applications: High-vibration cooling environments, mobile storage units, and transportable liquid cooling rigs.
Pro-Keywords: Anti-vibration locking mechanism, secure tactile feedback, robust connection under mechanical stress.
Main technical parameters
Working temperature: -55 ℃ -125 ℃
Working pressure: 20Bar
Applicable medium: water glycol, cooling water
Leakage rate: less than 0.001ml/s under 3Bar gas test pressure
Corrosion resistance: Neutral salt spray test for over 192 hours
Impact resistance: peak acceleration 15g
Vibration resistance: random vibration 15 to 2000Hz, power Spectral density 0.04g2/Hz, duration 0.5h
Long service life: over 10000 times of plugging and unplugging
additional function
Optional self unloading socket to protect the cold board from bulging
CNB Series: Large Floating Blind-Mate Couplings
Material: Aluminum Alloy / Stainless Steel
Flow Size (DN): 03 | 05 | 08 | 12
Applications: High-density AI blade servers, standardized liquid cooling modules, and rack-level deployment.
Pro-Keywords: Large radial/axial misalignment compensation, ideal for blind-mating in dense server chassis, zero-spill design.
material quality
Main material: stainless steel or aluminum alloy with surface treatment
The sealing ring should be made of low-temperature silicone rubber or HNBR
Main technical parameters
Working temperature: -55 ℃ -125 ℃
Working pressure: 20Bar
Applicable medium: water glycol, cooling water
Floating amount: allowable misalignment size ± 1mm
Leakage rate: less than 0.001ml/s under 3Bar gas test pressure
Corrosion resistance: Neutral salt spray test for over 192 hours
Impact resistance: peak acceleration 15g
Vibration resistance: random vibration 15 to 2000Hz, power Spectral density 0.04g2/Hz, duration 0.5h
Long service life: over 10000 times of plugging and unplugging
Additional features
Optional pressure connection and self unloading function
Optional embedded installation method
*Please consult our sales engineer for details.
Flow pressure drop diagram
CN Series: Standard Blind-Mate Couplings
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Material: Aluminum Alloy / Stainless Steel
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Flow Size (DN): 02 | 03 | 05 | 08 | 12
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Applications: Standardized liquid-cooled server plates, multi-node chassis, and EV charging stations.
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Pro-Keywords: Compact profile for tight spatial limitations, low insertion force, flawless rack-level integration.
material quality
Main material: stainless steel or aluminum alloy with surface treatment
The sealing ring should be made of low-temperature silicone rubber or HNBR
Main technical parameters
Working temperature: -55 ℃ -125 ℃
Working pressure: 20Bar
Applicable medium: water glycol, cooling water
Floating amount: allowable misalignment size ± 0.5mm
Leakage rate: less than 0.001ml/s under 3Bar gas test pressure
Corrosion resistance: Neutral salt spray test for over 192 hours
Impact resistance: peak acceleration 15g
Vibration resistance: random vibration 15 to 2000Hz, power Spectral density 0.04g2/Hz, duration 0.5h
Long service life: over 10000 times of plugging and unpluggin。
additional function
Optional pressure connection and self unloading function
Optional embedded installation method
*Please consult our sales engineer for details.
VAF Series: Gas-Liquid Two-Phase Quick Couplings
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Material: Premium Aluminum Alloy
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Flow Size (DN): 06 | 09 | 14 | 17 | 20
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Applications: Fluorinated liquid cooling (phase-change immersion cooling), advanced HVAC systems.
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Pro-Keywords: Dual-phase sealing matrix, high compatibility with dielectric fluids/fluorinated coolants, eco-friendly containment.
material quality
The main material is aluminum alloy with surface treatment
The sealing ring is low-temperature HNBR
Main technical parameters
Working temperature: -40 ℃ -125 ℃
Working pressure: 80Bar, can withstand a pressure of 40bar
Applicable media: fluoride, water glycol, cooling water
Leakage rate: less than 0.00001ml/s under 3Bar gas test pressure
Corrosion resistance: Neutral salt spray test for over 192 hours
Impact resistance: peak acceleration 15g
Vibration resistance: random vibration 15 to 2000Hz, power Spectral density 0.04g2/Hz, duration 0.5h
additional function
Anti loosening pin
Dust cover
Premium PTFE Hose Assemblies with 316L SS Braiding
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Working Temp Range: -55°C to +150°C
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Inner Core: Smooth-bore PTFE (内平外波 for maximum flow and flexibility).
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Outer Braid: Stainless Steel 316L high-tensile wire.
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Applications: Flexible connection between battery racks, high-temperature thermal loops.
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Pro-Keywords: Chemical inertness, zero-permeation, extreme temperature resistance, high pressure tolerance.
The UQD/UQDB series fluid connectors are two products developed specifically for the big data industry, conforming to the Intel OCP standard. They enable quick connection between cold plate modules and the chassis or enclosure, and are primarily used in modular liquid cooling systems for big data servers, energy storage, and new energy batteries.
● UQD features a steel ball lock manual connection, while UQDB is a blind-mate connection design
● Both connection and disconnection remain sealed, leak-free, safe, and reliable
● 316L stainless steel construction: robust, wear-resistant, and corrosion-resistant
● Red and blue color-coded rings for easy identification of inlet and outlet circuits
● Multiple connection options available, including threaded, hose barb, and bulkhead connections
● CAD models provided to ensure complete integration of the product with your system design
UQD Technical Characteristics
Flow Diameter: Φ 02, 04, 06, 08 mm
Material:
Body material: 316L stainless steel, Code: SL
Seal material: EPDM rubber, Code: JE, Operating temperature: -40°C to 120°C
Fluorosilicone rubber, Code: JS3, Operating temperature: -55°C to 120°C
Special Option: Connect under pressure (supports up to 3 Bar)
Main Technical Performance
Applicable media: Water-glycol, cooling water, heat transfer oil, esters
Corrosion resistance: Withstands 192 hours of neutral salt spray test
Vibration and shock resistance: Random vibration 15 to 2000 Hz, power spectral density 0.04 g²/Hz, duration 0.5 hours, shock peak acceleration 15g
Mechanical life: No less than 5,000 mating cycles
100% OEM/ODM Tailored Customization Available
Every BESS project has its unique spatial limitations, flow requirements, and pressure tolerances. Standard off-the-shelf parts rarely fit a cutting-edge liquid cooling rack perfectly.
We don’t just sell products; we deliver tailored fluid solutions.
We support full customization, including:
Custom body materials (Stainless Steel 316, Aluminum, Brass) to meet weight and anti-corrosion targets.
Custom thread standards (NPT, BSPP, Metric) and specialized flow sizes.
Tailored blind-mating tolerances to ensure smooth connection even with misalignment in automated rack insertions.
Let’s Secure Your Next Liquid Cooling Project
As new overseas energy storage factories are under construction globally, securing a reliable, high-tier, yet cost-effective fluid connection partner is strategic.
We bridge the gap by offering top-tier European quality, agile customization, and direct-from-factory pricing.
📩 How to get started: Drop a comment below, or send us a direct message (DM) to request our Full Technical Catalog, 2D/3D CAD Models, or Sample Testing Requests. Let’s build a safer, more efficient energy storage future together.