UQDB Liquid-Cooled Quick Coupling

The UQDB series of quick-connect fittings is specifically designed for fluid cooling systems in data centers, server rooms, and other critical environments. Featuring a secure locking mechanism, high durability, and excellent sealing performance, it ensures reliable, leak-free operation. It is ideal for precise and efficient liquid cooling applications.

Additional information

Effective Diameter	DN2~8
Body Material	316SS
Working Pressure	0~20bar
Mechanical Life	5000 Times
Operating Temperature	-40℃~+125℃
Suitable Fluids	Deionized Water, Purified Water, Water-glycol, Water-propylene Glycol

Product Description:

The UQDB liquid cooling quick-connect couplings are specifically designed for liquid cooling circulation systems, enabling rapid connection and disconnection of fluid lines, thereby effectively improving equipment maintenance efficiency and reducing the risk of fluid leakage. This series is widely used in server liquid cooling systems, data centers, energy storage equipment, industrial cooling equipment, new energy vehicles, power electronics, and high-performance computing applications.

With high-precision structural design and high-quality sealing elements, UQDB liquid cooling quick-connect couplings maintain stable sealing performance even under high-frequency connection/disconnection cycles, ensuring long-term safe operation of liquid cooling systems.

Liquid Cooling Coupling Features:

Core Component of Liquid Cooling Systems

An indispensable key component in liquid cooling systems, used for rapid connection and disconnection of coolant lines, serving as the foundation for system operation.

Core Pain Point: Rapid Maintenance

Supports hot-swap (connection/disconnection under pressure), enabling equipment maintenance without system shutdown, significantly reducing MTTR (Mean Time To Repair) and ensuring continuous computing power availability.

Core Pain Point: Safety Assurance

Dual-seal structural design ensures absolute sealing integrity during connection, effectively preventing coolant leakage and protecting valuable core electronic equipment.

Technical Specifications:

Model	Size (in)	Equivalent Diameter (mm)	Rated Flow Rate (ipm)	Rated Flow Rate (gpm)	Cv
UQDB02	1/8″	3	2.37	0.6	0.3
UQDB04	1/4″	5	8.50	2.2	1.16
UQDB06	3/8″	7	12.72	3	2.17
UQDB08	1/2″	10	23.56	6.2	3.82

Technical Specifications:

Model	Unit	UQDB02	UQDB04	UQDB06	UQDB08
Max Insertion Force	(N)	50	60	75	100
Max Insertion Force	(lbf)	11.24	13.49	16.86	22.48
Min Burst Pressure	(bar)	60	60	60	60
Min Burst Pressure	(psi)	870	870	870	870
Max Operating Pressure	(bar)	22.5	22.5	22.5	22.5
Max Operating Pressure	(psi)	326	326	326	326
Mechanical Life	(cycles)	5000	5000	5000	5000
Leakage Volume	cc.max	0.01	0.015	0.02	0.04
Leakage Rate	pa.m³/s	1×10^-6	1×10^-6	1×10^-6	1×10^-6

Plug Dimensions:

Model	Part Number	End Connection Thread	Ø	L1	L2	H/Hex Flat-to-Flat	L
UQDB02	CYUQDB02-SPSW09ER CYUQDB02-SPSW09EB	7/16-20 UNF-2A	20	27	10	19	36.4
UQDB04	CYUQDB04-SPSW11ER CYUQDB04-SPSW11EB	9/16-18 UNF-2A	25.4	35.4	10	24	44.6
UQDB06	CYUQDB06-SPSW12ER CYUQDB06-SPSW12EB	3/4-16 UNF-2A	28.4	38.9	10	27	48.1
UQDB08	CYUQDB08-SPSW13ER CYUQDB08-SPSW13EB	7/8-14 UNF-2A	31.4	42.9	12.5	30	52.1

Socket Dimensions:

Model	Part Number	End Connection Thread	Ø	L1	L2	H /Hex Flat-to-Flat
UQDB02	CYUQDB02-SPSW09ER CYUQDB02-SPSW09EB	9/16-18 UNF-2A	20	23.62	11.5	17
UQDB04	CYUQDB04-SPSW11ER CYUQDB04-SPSW11EB	3/4-16 UNF-2A	23	28.5	11	19
UQDB06	CYUQDB06-SPSW12ER CYUQDB06-SPSW12EB	7/8-14 UNF-2A	28	31.75	12.5	24
UQDB08	CYUQDB08-SPSW13ER CYUQDB08-SPSW13EB	1-1/16-12 UNF-2A	31	35.56	14	27

1. Note: Dimensions in (mm)
2. Color identification for supply/return circuits: Blue inlet B or Red outlet R

UQDB Liquid-Cooled Quick Coupling

Additional information