How deep can HYSF connectors go (depth rating)?

Quick Answer

HYSF underwater connectors are available with depth ratings from 100 meters (10 bar) to 6000 meters (600 bar). Standard product lines typically offer 300m, 1000m, 2000m, 3000m, and 4000m ratings. Custom connectors can be engineered for specific depth requirements beyond standard offerings. All connectors are pressure tested to 1.5x rated depth before shipment.

Standard Depth Ratings

Shallow Water (100-300m)

  • Applications: Aquaculture, shallow ROV, diving equipment, harbor installations
  • Pressure: 10-30 bar (145-435 psi)
  • Product series: HYSF-SW series
  • Typical cost: Most economical

Medium Depth (300-1000m)

  • Applications: Work-class ROV, offshore oil & gas, scientific instruments
  • Pressure: 30-100 bar (435-1450 psi)
  • Product series: HYSF-MD series
  • Typical cost: Moderate

Deep Water (1000-3000m)

  • Applications: Deep sea ROV, subsea production systems, oceanographic research
  • Pressure: 100-300 bar (1450-4350 psi)
  • Product series: HYSF-DW series
  • Typical cost: Premium

Ultra Deep (3000-6000m+)

  • Applications: Hadal zone exploration, deep submergence vehicles, abyssal research
  • Pressure: 300-600+ bar (4350-8700+ psi)
  • Product series: HYSF-UD series (custom engineering)
  • Typical cost: Highest (custom quoted)

Depth Rating Certification

All HYSF connectors undergo rigorous pressure testing:

  • Factory acceptance test: 1.5x rated pressure for 24 hours
  • Leak detection: Helium mass spectrometry for critical applications
  • Cycle testing: Pressure cycling to simulate operational conditions
  • Documentation: Test certificates provided with each shipment

Factors Affecting Depth Rating

Material Selection

  • Housing: Titanium (best), stainless steel 316L, bronze, engineered plastics
  • Seals: Viton, silicone, polyurethane (selected based on depth and temperature)
  • Contacts: Gold-plated brass, stainless steel, or specialty alloys

Design Considerations

  • Wall thickness and geometry
  • Seal compression and retention
  • Pressure balancing (oil-filled vs. dry)
  • Cable entry and strain relief

Environmental Factors

  • Temperature extremes (affects material properties)
  • Salinity and chemical exposure
  • Dynamic vs. static pressure loading
  • Installation depth vs. maximum rated depth

Custom Depth Solutions

For applications requiring non-standard depth ratings:

  • Engineering consultation: Review your specific requirements
  • FEA analysis: Finite element analysis for custom designs
  • Prototype testing: Validation testing before production
  • Certification support: Documentation for class approval (DNV, ABS, etc.)

Depth Rating vs. Working Pressure

DepthPressure (bar)Pressure (psi)Test Pressure (bar)
100m1014515
500m5072575
1000m1001450150
2000m2002900300
3000m3004350450
4000m4005800600
6000m6008700900

Contact Us

Depth rating consultation: tech@hysfsubsea.com
Product inquiries: info@hysfsubsea.com

Picture of John Zhang

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.

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John Zhang

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