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Circular Series Underwater Connector -- Wet-Mateable Subsea Connector | IP68 | 7000m | ROV AUV Deep Sea

Published on:2026-05-24 Click:24

Circular Series Underwater Connector -- Wet-Mateable Subsea Connector | IP68 | 7000m | ROV AUV Deep Sea

Shanghai Kabel Intelligence Technology Co., Ltd Circular Series wet-mateable subsea underwater connectors for ROV, AUV, and offshore instruments. IP68, 7000m depth, PEEK insulator, SubConn compatible.

Product introduction

Circular Series -- Wet-Mateable Subsea Connectors for ROV, AUV, and Offshore

The Circular Series from Shanghai Kabel Intelligence Technology Co., Ltd is engineered for the most demanding subsea connectivity applications -- deep sea ROV operations, long-endurance AUV missions, and permanent offshore seabed instrument installations. Wet-mateability allows connections to be made and broken while submerged, without bringing equipment to the surface. IP68 rated, 7,000 m depth qualified, PEEK insulated, and directly compatible with SubConn® Circular Series.

Wet-Mateability Explained

Wet-mateable means the connector can be engaged and disengaged underwater -- by a diver or an ROV manipulator -- without flooding or shorting. Spring-loaded contacts displace seawater at the moment of mating, and the dual O-ring face seal traps no water inside the mated pair. This is the fundamental advantage of the Circular Series over standard IP68-sealed connectors that must be mated in air.

Key Technical Data

Parameter Value
Depth rating 7,000 m (700 bar hydrostatic)
IP rating IP68
Voltage 600 V AC/DC
Mating Wet-mateable (subsea, by diver or ROV)
Contacts 2, 3, 4, 5, 6, 8, 10, 12, 16, 25
Shell Anodized aluminium / Titanium / SS 316L
Insulator PEEK
Sealing Dual O-ring per contact + face seal
Mating cycles 500+ (verified)
Hydrostatic test 600 psig per batch, certificate supplied

Applications

  • Subsea observatory wet-mate interconnect points
  • AUV docking station power and data exchange connectors
  • ROV hot-stab and flying lead termination connectors
  • Offshore permanent seabed sensor network junction connectors
  • Research vessel over-the-side instrument deployment cables

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Frequently Asked Questions

How many times can a Circular Series connector be wet-mated?

The Circular Series is rated for 500+ wet-mating cycles. In ROV operations with daily hot-stabbing, connectors typically remain in service for 2-5 years before scheduled replacement of O-rings and contacts during overhaul.

Can an ROV manipulator mate a Circular Series connector?

Yes. The threaded locking coupling is designed with sufficient grip surface for manipulator jaw engagement. Specify the manipulator jaw opening dimension when ordering and we can advise on coupling handle options.

Applications

  • ROV power and signal distribution systems requiring mixed-contact configurations
  • Subsea control systems, offshore platform equipment and underwater instrumentation
  • Marine renewable energy, oceanographic research and environmental monitoring
  • Naval defense systems, sonar arrays and underwater communication networks
  • Diving systems, underwater tools and remotely operated equipment connectivity

Customization Options

  • Customised harness cables with direct moulding to selected polyurethane cables
  • Customer-specified cable types, wire lead lengths and bulkhead thread dimensions
  • Pressure-proof dummy connectors, locking sleeves and additional accessories
  • Certified pressure testing to specific ocean depths with full documentation
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