New details: Sealing Flow‑Passage under 110‑MPa Ultra‑High Pressure of 10,000‑meter‑deep Seawater:
Release Background:
Global industry giants including Amphenol, TE Connectivity and Eaton still held more than half of the worldwide market share in 2025. In 2026, China‑led independent R&D of these critical deep‑sea core components enters the sea‑trial phase for full‑ocean‑depth (10,000‑meter‑grade) applications.
Core‑Technology Analysis
Sealing Flow‑Passage under 110‑MPa Ultra‑High Pressure of 10,000‑meter‑deep Seawater: This paper focuses on high‑end electrical wet‑mate connectors for deep‑sea exploration and manned submersibles. The primary challenge is fully draining seawater from receptacles during underwater mating while preventing sealing surfaces from collapse under 110‑MPa ultra‑high deep‑sea pressure.Multi‑stage Guidance for Mechanical Fault Tolerance: Deep‑sea manipulators and autonomous underwater vehicles (AUVs) tend to perform rough operations during blind mating. Our technical team developed a three‑stage physical guiding‑locking structure with customized tapered chamfers. It enables coarse alignment by ROV while achieving precise internal positioning inside the connector.
On‑line Test Specifications with High‑Pressure Vessel: This document elaborates the newly‑adopted testing workflows in 2026: high‑low pressure cyclic pressurization and real‑time insulation resistance monitoring. The setup simulates thousands of mating‑unmating cycles over a service life of 20‑years in deep‑sea environments and provides solid data support for commercialization of domestically‑developed connectors.