What Is the Difference Between Wet Mate and Dry Mate Connectors?

Quick Answer

Wet mate: Connect/disconnect underwater. Dry mate: Connect on surface only. Wet mate costs 2-3x more but enables underwater operations. Choose based on underwater connection needs.

Detailed Explanation

Wet Mate Connectors

Characteristics:
– Oil-filled pressure compensation
– Special sealing mechanisms
– Can be mated at depth
– Self-cleaning contacts

Applications:
– ROV tool changes
– Underwater sensor swaps
– Diver-operated connections
– AUV docking stations

Pros:
– True underwater operation
– Flexible deployment
– No surface support needed

Cons:
– 2-3x higher cost
– More complex maintenance
– Larger size

Dry Mate Connectors

Characteristics:
– Standard O-ring sealing
– Must be mated dry
– Submerged after connection
– Simpler design

Applications:
– Fixed installations
– Subsea equipment
– Cable terminations
– Most ROV/AUV systems

Pros:
– Cost-effective
– Proven reliability
– Compact design
– Easier maintenance

Cons:
– Surface connection required
– No underwater changes

Selection Guide

| Requirement | Choose |

## Contact/CTA

Email: technical@hysfsubsea.com. Both wet mate and dry mate available from 100m to 11,000m.