Are Locking Sleeves required for operation?

While the connectors rely on friction for retention, we strongly recommend using Locking Sleeves (Locking Collars) for all dynamic or critical applications. They mechanically secure the mated pair, preventing accidental disconnection due to vibration, cable dragging, or thermal expansion.

Secure connections save missions.

Vibration: ROV thrusters generate significant vibration that can slowly “walk” a connector out of its socket.
Types: We offer standard POM (Delrin) sleeves for general use and Stainless Steel sleeves for high-impact protection.
Snap Ring: Ensure the snap ring is correctly seated on the metal shell groove to give the locking sleeve a solid anchor point.

John Zhang

(CEO & Lead Engineer)
Email: info@hysfsubsea.com
With over 15 years of expertise in subsea interconnect technology, I lead HYSF's R&D team in designing high-pressure (60MPa) solutions. My focus is on ensuring zero-leakage reliability for ROVs, AUVs, and offshore instrumentation. I personally oversee the validation of our custom connector prototypes.

Have a complex technical question?

Proven Solutions in the Field

A showcase of our successful collaborations with global marine robotics, energy, and research partners. Every project reflects our commitment to zero-leak integrity and operational reliability.

Custom 6-Port Watertight Enclosure & Subsea Interconnect System

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50MPa High-Precision Subsea Pressure Sensor

Custom Retractable Subsea Spiral Coiled Cable (Spring Cable)

Custom Subsea Bulkhead Flange Joint Connector

All-New Next-Generation Subsea IP Network Camera Series

Custom 6-Port Watertight Enclosure & Subsea Interconnect System

60MPa High-Pressure Metal Shell Watertight Connector (4-61 Pins)

5MP High-Definition Underwater Camera (40MPa / 316L Stainless Steel)

Custom Molded Subsea Penetrator with Integrated Multi-Core Cable

Custom 6-Pin / 40A Medium-Power Subsea Connector

MCPBOF2-8MF Oil-Filled Pressure Compensated Connector (8-Pin)

Micro Flange 3-Pin Subsea Bulkhead Connector (IL4MF Compatible)

Single-Pin High-Current (150A) Subsea Power Connector

High-Performance Photoelectric Hybrid Subsea Connector

Custom Branching Subsea Cable Network (Tree Topology)

Custom Miniature Single-Core In-Line Watertight Connector

5MP High-Definition Underwater Observation Camera (40MPa)

Gigabit Ethernet 12-Pin Subsea Connector (4 Power + 8 Network)

Custom High-Intensity Subsea LED Light & Mounting Bracket System

70MPa Ultra-High Pressure Metal 61-Pin Subsea Connector

RMG Series 4-Pin Subsea Engineering Cable Plug

Ultra-Miniature Subsea Watertight Connector Series (2-28 Pins)

Custom 1-to-3 Fan-out Subsea Splitter Cable System

High-Strength Titanium Alloy Subsea Penetrator

Integrated Subsea Interconnect & Imaging Solutions

High-Frequency Subsea Coaxial RF Connector Assembly (50-3 / 50-5)

Miniature Subsea Watertight Connector (Marine Bronze Base)

60MPa Metal Shell Bulkhead Connector with Triple Seal (4-61 Pins)

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Right Angle Molded Micro Bulkhead Connector (LPMBH-IL12/16MF Compatible)

MCBH-Hybrid 4+2 Photoelectric Subsea Connector (Power & Fiber Optic)

Multi-Core Split-Type Watertight Connector (Diverse Configurations)

Custom Branching Subsea Cable Network (Y-Splitter & Multi-Node)

PBOF Series Pressure-Balanced Oil-Filled Subsea Connectors

10-Pin Ethernet Subsea Connector (2 Power + 8 Network Cores)

Start Your Subsea Project with HYSF

Whether you need a quick quote for standard connectors or a complex custom cable assembly, our engineering team is ready to assist. Expect a technical response within 12 hours.