Liquid Cooling Quick Disconnect Coupling

Home

Solutions

High Voltage Wiring Harness Solution

ESS Battery Connection Solutions

EV High Voltage Interconnection Solution

EV Charging Solution

High Voltage Wiring Harness Solution

Guchen Electronics is a one-stop source for electric vehicle high voltage cable harness assembly, low voltage cable harness assembly and electrical connectors.

ESS Battery Connection Solutions

We offer customized connection solutions for all your BESS requirements. From front to rear connection, we have the right solution for you. Besides that, we have a team of highly trained engineers and technicians who can solve any connection issue that you may have.

EV High Voltage Interconnection Solution

High Voltage Interconnection Solutions are the connectors used to connect the high voltage components in Electric Vehicles. Guchen offers a wide range of High Voltage Connectors for EV, HEV and PHEV applications.

EV Charging Solution

Guchen Electronics offers OEM/ODM, customization services, and has expertise in providing charging solutions for both commercial and residential customers.

Products

EV HV Connectors

EV HV Wiring Harness

EV HV Cable

EV Charging Connectors (Socket & Plug)

Energy Storage Connector

Liquid Cooling Quick Disconnects

EV HV Connectors

Electric vehicle connectors supplied by Guchen Electronics are with excellent shielding, fast safe easy assembling, wide wire section options, compact design and multi positions connectors options. In order to meet different requirements, we provide our customers with various types of quality HV connectors, widely used in the fields of automotive electronics.

GVA630 Series 40A 3-Pin HV Plastic Connector

MSD-H High Voltage Manual Service Disconnect (630A, 1000V)

GVA280 Series 30A 2-Pin High Voltage Plastic Connector

SH3 Series 2-Pole 350A High Current Plastic Connector

EV HV Wiring Harness

Guchen Electronics is a professional manufacturer of HV assembled wiring harnesses for electric passenger cars and commercial vehicles. We always pay attention to the quality of HV cables & connectors, and provide global EV manufacturers with high quality products and excellent service.

Electric Compressor HV Wiring Harness

BAT high voltage assembled wiring harness

EV Battery High Voltage Wire Harness

MCU High Voltage Wire Harness Assembly

PTC&AC High Voltage Wire Harness

EV HV Cable

We have a wide range of high voltage cables for passenger car and commercial vehicles like bus, truck, coach etc. Guchen EV HV cables can handle high currents and high voltage. They are high temperature resistant, soft, and with variable options (2.5mm²~120mm² sizes, shielded or unshielded, copper or aluminum cable options). Guchen cables are full customizable to meet different EV requirements.

XLPE/XLPO-insulated aluminum core HV cable

Shielded High Voltage XLPO/XLPE-Insulated Aluminum Cable

silicone rubber high voltage copper cable

Shielded High Voltage Silicone Rubber Copper Cable

Shielded High Voltage XLPE/XLPO Multi-Core Copper Cable

shielded XLPE high voltage single-core cable

Shielded High Voltage XLPE/XLPO Single-Core Copper Cable

EV Charging Connectors (Socket & Plug)

We can offer premium quality type 2 charging gun, CCS2 DC charging plug, CCS2 charging socket vehicle inlet etc. Guchen EV Charging Connectors are built with precision and reliability in mind. All of our EV charging plugs and sockets are made from high-quality materials engineered to withstand daily use in public charging stations. We've rigorously tested them to meet the latest standards for safety, charging speed and reliability. Guchen Electronic aims to be a leading supplier of charging solutions as electric vehicles become more prevalent worldwide. Please contact us to learn more about our EV charging connectors.

CCS2 DC EV Charging Plug/Gun

CCS2 EV DC Charging Socket (Vehicle Inlet)

Energy Storage Connector

Guchen Electronics is specialized in designing and manufacturing of electric vehicle high voltage connectors (with various specifications and features), HV wire harness & cables, EV charging equipment, and HV connectors for Battery Energy Storage System (BESS).

MSD-C1 Series 350A ESS MSD Connector

GCS12 12mm 250A-350A Battery High Voltage Connector

GCS08 8mm 150A-250A Energy Storage Connector

GCS2 300A/350A Battery Copper Bus Bar Connector

Liquid Cooling Quick Disconnects

Guchen Electronics Liquid Cooling Quick Disconnects – Efficient, Reliable, and Future-Ready! Optimize your data center cooling with Guchen Electronics’ Liquid Cooling Quick Disconnects. Designed for high-performance thermal management, our connectors ensure rapid, leak-free connections, effortless maintenance, and superior durability under extreme conditions. Supporting high flow rates and a variety of cooling fluids, they are engineered for seamless integration with liquid-cooled racks, servers, and high-density computing systems.

MDC Series Liquid Cooling Quick Disconnect Couplings

MQD/MQDB Coupling (NVIDIA Standard)

UQD Connector | Universal Quick Disconnect Coupling

UQDB Series Blind-Mate Floating Coupling

Blog

Company Blog

Guchen Electronics is a professional China factory for electric vehicle connectors, high voltage cable assemblies, EV charging equipment and energy storage connectors. We provide all kinds of products with high quality and competitive price.

Industry Blog

Here you can learn about the global electric vehicle industry, news, reviews and analysis about electric vehicle industry trends, technologies and manufacturers.

Exhibitions

Guchen Electronics attends various exhibitions yearly, including Electric Vehicle Expo which has become a world-famous event. As one of the best EV HV connector manufacturers, Guchen Electronics has attracted hundreds of suppliers and buyers from all over the world during the exhibitions.

Technical Support

Guchen provides one-stop technical supports relating to HV connectors, cable assemblies, and energy storage connectors. We have strong expertise in different technologies not only limited to power electronics. We have provided the standard level of services for our customers during the whole process from initial product design, building to mass production and routine maintenance.

About Us

About us

Quality Assurance

Service

About us

Guchen Electronics is a professional manufacturer and custom solution provider of electric vehicle connection system and ESS battery connection system. We are located in Shenzhen, China. Our international business covers more than 70 countries around the world. With many years' experience in the field, we can provide OEM products with high quality, good price and on time delivery. Welcome to contact us if you are interested in any of our products.

Quality Assurance

Guchen Electronics is a manufacturer of all kinds of high voltage connectors. Our products include, high voltage interlock connectors, low/high current HV connectors and cable assembly which are compliant with international standards. We have an excellent team and advanced production equipment to meet market demands.

Service

No matter your business is large or small, OEM, ODM and OBM orders are all available. We can provide you with the best pre-sale and after-sale services, to ensure that your orders are completed smoothly in time. Guchen connectors covers all kinds of types with OEM services. We firmly believe that it is the best way to establish a win-win cooperation. Guchen EV HV connectors is your excellent choice. The reasons why Guchen EV HV connectors is your competent partner: 1) Good quality + Competitive price + Professional service 2) Short delivery date 3) Reliable and stable after-sale service

Contact

Product Details Features Configurations Message

Quote Now > Send Email >

Key Advantages of Guchen MDC Series Spill-Free Coupling

Spill-Free Flat Face Design for Cleaner Maintenance

The MDC series adopts a flat-face shut-off valve design that minimizes coolant leakage during connection and disconnection.
This spill-free structure helps Reduce coolant loss during maintenance, keep cooling systems clean, improve operational safety.

Low Flow Resistance for Efficient Heat Transfer

The optimized internal flow path reduces pressure loss and improves coolant circulation efficiency, supporting high-performance thermal management systems.
The MDC series is suitable for cooling media including deionized water, water + ethylene glycol mixtures, fluorinated liquids

Quick Push/Pull Operation with Pressure Connect Capability

Designed for easy installation and maintenance, the MDC series supports quick push/pull locking operation and can be connected or disconnected under pressure conditions, reducing system downtime.
Key benefits:
--Single-hand operation
--Fast installation and replacement
--Improved service efficiency

Reliable MDC liquid cooling quick couplings

Product Features of MDC Series Quick Release Coupling

Dual Shut-Off Valve for Reliable Fluid Control
Both coupling halves feature shut-off valves to prevent coolant leakage when disconnected, ensuring safer operation during maintenance and system assembly.

Sealing Protection Design for Extended Service Life

The innovative male coupling sealing protection structure reduces contact damage to the sealing ring during connection.
Benefits include:
--Reduced flow resistance
--Improved sealing reliability
--Extended sealing component lifetime

Designed for Harsh Operating Environments

The MDC series is designed with excellent mechanical durability and environmental resistance.
Performance features include:
--IEC 61373 vibration resistance compliance
--96-hour intermittent neutral salt spray test
--5,000 connection/disconnection cycles reliability testing
Suitable for applications requiring long-term stability under vibration, corrosion, and frequent maintenance conditions.

Flexible Configuration Options

To support different system integration requirements, MDC series offers:
--Multiple connection methods
--Various sealing solutions
--Different size options
Available models:
MDC04 | MDC06 | MDC09 | MDC14 | MDC19 | MDC25
Color identification options:
-Red
-Blue
-No color marking

Application Case: MDC25 Liquid Cooling Quick Coupling for Marine Cooling System

A customer developing a marine liquid cooling system required a quick disconnect solution with:
--High flow capability
--Spill-free connection
--Strong corrosion resistance
--Excellent vibration performance
--Reliable operation in marine environments

Customer Requirements

Requirement	Specification
Coupling Type	Manual push/pull lock quick release coupling
Material	Stainless Steel 316
Flow Rate	200–250 LPM
Cooling Media	Water / Water + Ethylene Glycol
Pressure Rating	≥16 bar
Connection Size	≤1½ inch thread
Installation	Panel mount / Threaded connection
Environment	Marine application

Based on the customer's requirements, Guchen recommended the MDC25 Liquid Cooling Quick Disconnect Coupling.
The MDC25 provided a suitable solution with:
✓ Spill-free coolant connection
✓ High-flow capability
✓ Corrosion-resistant construction
✓ Reliable performance under vibration conditions
✓ Easy maintenance through quick connection design
This successful application demonstrates the MDC series capability in demanding liquid cooling environments.

High Flow Liquid Cooling Quick Coupling
MDC25

Guchen MDC Series: Reliable Connections for Next-Generation Liquid Cooling Systems

From EV battery thermal management and energy storage systems to data centers and marine cooling applications, Guchen Liquid Cooling Quick Disconnect Couplings provide engineers with a reliable connection solution designed for efficiency, safety, and long-term system performance.

Message

If you are interested in our products, please fill in the message form below. Our sales representative will contact you within 24 hours.