FVG W Series High Pressure Underwater Metal Circular Connector

W – Underwater Series
LINKHIVE W Series FVG High Pressure Marine and Underwater Connectors 

Rugged screw-locking circular connectors engineered for high water pressure environments. Perfectly suited for challenging marine, subsea, and underwater equipment applications where durability and sealing performance are critical.

 These waterproof connectors ensure secure, reliable, and long-lasting connections in underwater environments, even under high pressure. Whether used for marine connectors in offshore platforms or subsea connectors for deep-sea research, the waterproof connectors in the W Series FVG 0W offer superior sealing and protection. . The waterproof plug design guarantees that electrical connections remain safe, preventing any water ingress under extreme conditions.

W – Underwater Series

Underwater equipment applications 

Key  Features

◪Secure screw-locking System: Ensures a reliable and secure connection.

◪Wide Multipole Range: Available with 2 to 64 contacts for versatile applications.

◪Flexible Contact Options: Choose between solder or PCB contacts, available in straight or elbow configurations.

◪High Packing Density: Designed to save space while maintaining performance.

◪Waterproof to a depth of 50 meters.

◪Four positioning modes are available.  

◪The hard shell design is suitable for harsh working environment.  

◪360-degree shielding provides all-round EMC protection (anti-electromagnetic interference).

Diamenions

W - Underwater Connector Advantages:

The LINKHIVE W Series is specifically developed for extreme underwater and marine conditions requiring resistance to high hydrostatic pressure — supporting depths of up to 300 meters (5 to 60 bar, depending on the socket type). These robust circular connectors use a threaded coupling mechanism to ensure watertight performance even during prolonged saltwater exposure.

With multiple keying options available, the W Series enables dense multi-contact configurations while minimizing the risk of mismating. It is perfectly suited for mission-critical applications in offshore energy, subsea exploration, nuclear systems, chemical processing, marine instrumentation, and aerospace technology.

• Wide range of insert configurations and shell sizes

• Optional EMC shielding for signal integrity in harsh environments

• Tested for field performance in real-world underwater deployments

• Multiple mounting options to suit varied integration needs

Designed for durability and precision, LINKHIVE W connectors provide a reliable interface for underwater systems that demand the highest standards in sealing and electrical performance.

Used the table below to choose the right pins

Minature 0W Subsea Sircular Connector selection

Parameter	TVG.0W.302.CLA.22	TVG.0W.303.CGA.32	TVG.0W.304.CTA.42	TVG.0W.305.CLA.52	TVG.0W.306.CLA.52	TVG.0W.307.CGA.56	TVG.0W.309.CTA.52	TVG.0W.312.CLA.52
Insert
No. of Contacts	2	3	4	5	6	7	9	12
Cable Ø (mm)	2.2	2.2	4.2	5.2	5.2	5.6	5.2	5.2
Description	2-pin IP68 underwater connector for low-power subsea devices	3-pin IP68 waterproof connector	4-pin IP68 submarine connector for sensors	5-pin underwater cable connector for monitoring systems	6-pin underwater connector for multi-channel devices	7-pin underwater connector for subsea communication	9-pinsubmarine connector for compact subsea equipment	12-pin underwater connector for advanced subsea modules
Application	Suitable for underwater sensors, monitoring modules, and small subsea electronics	Used for underwater cameras and control systems	Ideal for subsea diagnostic devices	For subsea power and data connections	Applied in multi-channel subsea systems	Used for communication and control in subsea devices	Designed for compact multi-function subsea systems	Used in high-pin-count subsea equipment

Small Size 1W Subsea Sircular Connector selection

Parameter	TVG.1W.302.CLA.27	TVG.1W.303.CGA.31	TVG.1W.304.CLA.42	TVG.1W.305.CTA.62	TVG.1W.306.CLA.72	TVG.1W.307.CLA.52	TVG.1W.308.CGA.52	TVG.1W.310.CTA.2	TVG.1W.314.CLA.52	TVG.1W.316.CLA.52	TVG.1W.106.CGA.52
Insert
No. of Contacts	2	3	4	5	6	7	8	10	14	16	6
Cable Ø (mm)	2.7	3.1	4.2	6.2	7.2	5.2	5.2	5.2	5.2	5.2	5.2
Description	2-pin high-pressure underwater connector	3-pin seal plug for subsea modules	4-pin submarine connector for sensors	5-pin subsea connector for monitoring	6-pin seal plug for subsea power/data	7-pin hsubmarine connector	8-pin seal plug	10-pin seal plug for complex systems	14-pin seal plug subsea connector	16-pin submarine connector for high-density subsea devices	6-pin submarine connector for special systems
Application	Used in high-pressure subsea devices	Suitable for control and communication systems	Applied in subsea power delivery	For monitoring and diagnostic modules	For subsea power and communication hubs	Used in control modules	Applied in multi-channel subsea equipment	For high-pin-count subsea systems	Used in diagnostic and communication equipment	For complex multi-function subsea modules	For small, high-pressure subsea devices

Medium Size 2W Subsea Sircular Connector selection

Parameter

TVG.2W.302.CLA.21

TVG.2W.303.CTA.32

TVG.2W.304.CLA.52

TVG.2W.305.CLA.52

TVG.2W.306.CGA.62

TVG.2W.307.CTA.72

TVG.2W.308.CLA.52

TVG.2W.310.CLA.52

TVG.2W.312.CGA.52

TVG.2W.314.CLA.62

TVG.2W.316.CTA.82

TVG.2W.318.CLA.52

TVG.2W.319.CLA.52

TVG.2W.326.CGA.32

TVG.2W.332.CTA.52

TVG.2W.514.CLA.52

Inserts

No. of Contacts

2

3

4

5

6

7

8

10

12

14

16

18

19

26

32

14

Cable Ø (mm)

2.1

3.2

4.2

5.2

6.2

7.2

5.2

5.2

5.2

6.2

8

5.2

5.2

3.2

5.2

5.2

Description

2-pin metal underwater cable connector IP68 r

3-pin marine electrical connectors waterproof

4-pin underwater connector

5-pin marine electrical connectors waterproof

6-pin IP68 marine electrical connectors waterproof

7-pin underwater cable connector

8-pin underwater connector

10-pin metal marine electrical connectors waterproof

12-pin underwater cable connector

14-pin underwater connector

16-pin sunderwater cable connector

18-pin high-density submarine connector

19-pin submarine connector

26-pin underwater cable connector

32-pin underwater cable connector

14-pin IP68 marine electrical connectors waterproof

Application

For low-pin-count subsea applications

Used in subsea sensors

For diagnostic systems

Applied in control equipment

Used for power and data modules

Suitable for communication hubs

Used in multi-channel subsea systems

Applied in high-pin-count modules

For diagnostic and monitoring hubs

For complex multi-signal devices

Used in subsea power/data systems

Applied in high-density subsea equipment

For communication and diagnostic systems

For advanced subsea modules

For large multi-signal subsea devices

Used in advanced subsea hubs

Large 3W Subsea Sircular Connector selection

Parameter

TVG.3W.302.CLA.52

TVG.3W.302.GLA.52

TVG.3W.303.CGA.52

TVG.3W.304.CLA.62

TVG.3W.305.CTA.62

TVG.3W.306.CLA.72

TVG.3W.307.CLA.52

TVG.3W.308.CGA.32

TVG.3W.309.CTA.52

TVG.3W.310.CLA.52

TVG.3W.312.CLA.52

TVG.3W.314.CGA.52

TVG.3W.316.CLA.52

TVG.3W.318.CTA.62

TVG.3W.320.CLA.72

TVG.3W.322.CLA.82

TVG.3W.324.CGA.92

TVG.3W.326.CTA.10

TVG.3W.330.CLA.11

TVG.3W.332.CLA.52

Insert

No. of Contacts

2

2

3

4

5

6

7

8

9

10

12

14

16

18

20

22

24

26

30

32

Cable Ø (mm)

5.2

5.2

5.2

6.2

7.2

5.2

5.2

3.2

5.2

5.2

5.2

5.2

5.2

6.2

7.2

8.2

9.2

10

11

5.2

Description

2-pin sealed marine electrical connectors waterproof

2-pin circular Seal plug

3-pin sealed subsea plug

4-pin underwater connector

5-pin  Seal plug

6-pin subsea circular connector

7-pin marine electrical connectors waterproof

8-pin sealed subsea connector

9-pin subsea seal  plug

10-pin underwater connector

12-pin sealed  Seal plug

14-pin marine electrical connectors waterproof

16-pin sealed marine electrical connectors waterproof

18-pin subsea circular connector

20-pin high-density connector

22-pin subsea seal  plug

24-pin subsea circular connector

26-pin sealed subsea plug

30-pin subsea circular connector

32-pin high-density subsea plug

Application

For low-contact underwater systems

For compact subsea modules

For small diagnostic devices

Seal plug For sensors and control

Applied in diagnostic subsea systems

For communication and power modules

Used in multi-channel systems

For small multi-contact modules

Applied in high-density subsea devices

For multi-signal hubs

Used in subsea power/data hubs

For diagnostic and monitoring

For large subsea modules

Used in power/communication systems

For high-signal-count modules

For advanced subsea devices

Applied in large communication hubs

For heavy-duty subsea modules

Used in large multi-contact systems

For high-density subsea systems

specifications

Quality Assurance & Testing

At LINKHIVE, every W Series underwater connector undergoes a strict quality assurance process to ensure performance, durability, and safety in the most demanding environments. Our quality management system complies with international standards and is implemented throughout all stages of production — from raw material inspection to final product testing.

Our quality control procedures include:

• 100% visual inspection for surface integrity, sealing components, and assembly accuracy

• Pressure testing under simulated high hydrostatic environments up to 60 bar

• Salt spray corrosion tests for long-term resistance in marine environments

• Electrical continuity and insulation resistance testing to verify signal reliability

• Mechanical endurance tests including mating/unmating cycles and locking mechanism strength

• Dimensional inspection with precision measuring tools to ensure tight tolerances

Every batch is traceable with serialized production records, and our in-house QA team performs statistical sampling and audits to maintain batch consistency.

By combining rigorous testing with advanced manufacturing, LINKHIVE guarantees that each W Series connector meets the highest standards for underwater performance and long-term reliability.