Liquid Cooling Quick Disconnect Coupling
GQD
Product Introduction
This product is manufactured by ZJK Industrial Co. (NASDAQ: ZJK), a supplier of connectors for NVIDIA. GoodGi, as the Taiwan distributor, is committed to providing professional solutions.
Quick Disconnect Couplings
(also known as Universal Quick Disconnect, UQD) are key components in liquid cooling systems, primarily used in high-performance computing devices like AI servers and supercomputers. These couplings feature fast connect and disconnect capabilities, along with leak-free operation, hot swapping, and secure connections. They comply with OCP (Open Compute Project) standards, enabling quick and reliable liquid connections while meeting the interchangeability requirements of small hose liquid cooling racks.
Liquid Cooling - Quick Disconnect Connector Styles
NVBQD-Quick Coupling
NVBQD-Quick Plug Socket
NVBQD-90 Degree Quick Coupling
NVBQD-90 Degree Quick Plug Socket
Sealing Ring Performance
This product is suitable for a variety of working environments. Based on your needs, you can select a sealing ring that matches the liquid medium, operating temperature, and pressure conditions. Please refer to the following selection guide to choose the appropriate sealing ring for your application:
| No. | Name | Min and Max Allowable Temperature | Application |
|---|---|---|---|
| 1 | EPDM (Ethylene Propylene Diene Monomer) | -50℃-150℃ | Seals in high-temperature steam environments and bathroom equipment. Apply to rubber parts in braking systems and seals in radiators (automobile water tanks). |
| 2 | FKM (Fluoroelastomer) | -20℃-250℃ | Used for seals in automobiles, motorcycles, diesel engines, fuel systems, and chemical plants. |
| 3 | FVMQ (Fluorosilicone Rubber) | -20℃-250℃ | Exceptional resistance to oils, solvents, and fuel oils, in addition to outstanding performance under extremely high and low temperatures. |
| 4 | FFKM (Perfluoroelastomer) | -50℃-200℃ | The perfluorinated series products are widely used in the semiconductor industry and information-related industries, including PVC, CVD, etching processes in the film process, and various high vacuum sealing processes. |
| 5 | NBR (Nitrile Butadiene Rubber) | -40℃-100℃ | Used for making fuel tanks, lubricating oil tanks, and rubber parts used in petroleum hydraulic oil, gasoline, water, silicone grease, silicone oil, diester lubricating oil, ethylene glycol hydraulic oil, and other fluid media, especially for sealing parts. It can be said to be the most widely used and lowest-cost rubber seal. |
| 6 | HNBR (Hydrogenated Nitrile Butadiene Rubber) | -40℃-150℃ | Application in laundry or dishwashing detergents. In the air-conditioning and refrigeration sector, it is extensively utilized in seals within the environmentally friendly refrigerant R134a system as well as in seals of automotive engine systems. |
UQD: The Open Standard for Liquid Cooling Connections
The Universal Quick Disconnect (UQD) is a high-performance fluid connector standardized by the Open Compute Project (OCP) under Intel’s initiative. It enables fast, secure, and leak-free connections for coolant lines, supporting hot-swapping in high-performance computing (HPC) and data center environments. ZJK’s UQD connectors are interchangeable with products from industry leaders like CPC, CEJN, and Stäubli, ensuring broad compatibility.
Applications
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Data Center Liquid Cooling: Supports high-density server racks with efficient thermal management.
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High-Performance Computing (HPC): Provides reliable cooling for supercomputers and AI clusters.
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AI Workloads: Meets the thermal demands of GPU-intensive AI training and inference.
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Edge Computing: Offers compact, scalable cooling for edge data centers.
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Telecom Infrastructure: Ensures robust cooling for 5G and telecom equipment.
Quick Coupling Dimensional Parameters
| No. | Nominal diameter DN (mm) | Flow velocity (CV) | Fluid loss volume(ml) | Number of insertions and extraction(times) |
|---|---|---|---|---|
| ZQD02 | ∮8.80/∮6.65 | 0.3 | 0.02 | 5000 |
| ZQD03 | ∮10.0/∮8.80 | 0.6 | 0.023 | 5000 |
| ZQD04 | ∮12.3/∮11.07 | 1.0 | 0.025 | 5000 |
Quick Plug Socket Dimensional Parameters
| No. | Insert aperture (mm) | Thread | Flow velocity (CV) | Fluid loss volume (ML) | Number of insertions and extraction (times) |
|---|---|---|---|---|---|
| ZQD02 | ∮6.71 | 7/16-20UNF | 0.3 | 0.02 | 5000 |
| ZQD03 | ∮8.90 | BSPP G1/4 | 0.6 | 0.023 | 5000 |
| ZQD04 | ∮11.15 | BSPP G3/8 | 1 | 0.025 | 5000 |
Quality Assurance Testing Equipment
Airtightness
Impulse/Water Pressure
Flow Resistance
Plugging Force
Salt Spray
Spring Pressure
Coordinate Measuring
Helium Mass Spectrometer Leak
Airtightness Leak Detector
Rubber Ring Production/Inspection Equipment
Automatic Molding
Automatic Image Screening
Low-Temp Embrittlement Testing
Shore Hardness
Abrasion Resistance
Thermostatic Oil
Tensile Testing
Features
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Specifications
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