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What testing do you perform on underwater connectors?

Réponse rapide

HYSF performs comprehensive testing on all underwater connectors including:

  • Pressure testing: 1.5x rated depth for 24 hours
  • Electrical testing: Continuity, insulation resistance, hipot
  • Environmental testing: Salt spray, temperature cycling, UV exposure
  • Mechanical testing: Mating cycles, vibration, pull test
  • Leak detection: Helium mass spectrometry for critical applications

Every connector ships with test certificates documenting all results.

Factory Acceptance Testing (Every Unit)

Pressure Testing

TestParametersAcceptance Criteria
Static pressure1.5x rated pressure, 24 hoursNo leakage, no deformation
Pressure cycling0 to rated pressure, 100 cyclesNo leakage, stable resistance
DecompressionRapid decompression from rated depthNo seal failure, no damage

Electrical Testing

TestParametersAcceptance Criteria
ContinuityEach contact pair<10 mΩ resistance
Insulation resistance500V DC, contact to housing>1000 MΩ
Hipot (Dielectric)1500V AC, 60 secondsNo breakdown, no flashover
Contact resistance stabilityAfter pressure test<5% change from initial

Visual Inspection

  • Dimensional verification per drawing
  • Surface finish inspection
  • Marking and labeling verification
  • O-ring and seal inspection
  • Thread inspection (go/no-go gauges)

Environmental Testing (Sample/Type Testing)

Corrosion Testing

TestStandardDurée de l'accordCriteria
Salt spray (fog)ASTM B117500-1000 hoursNo red corrosion, ≤5% surface affected
ImmersionASTM G3130 days seawaterNo pitting, no cracking
CASS testASTM B368240 hoursCoating adhesion maintained

Temperature Testing

TestParametersCyclesCriteria
Thermal cycling-40°C to +85°C50 cyclesNo cracking, stable electrical
Thermal shock-55°C to +125°C, 5 min transfer10 cyclesNo damage, no leakage
Low temperature-40°C, 24 hoursStaticNo brittleness, seals functional
High temperature+85°C, 24 hoursStaticNo deformation, seals functional

UV and Weathering

TestStandardDurée de l'accordCriteria
UV exposureASTM G1541000 hoursNo cracking, color change ≤3 ΔE
WeatherometerASTM G1552000 hoursNo degradation of properties

Mechanical Testing

Mating Cycle Testing

Type de connecteurCyclesFréquenceCriteria
Dry mate500 cyclesType test<10% resistance change, no damage
Wet mate200 cyclesType testNo leakage, smooth operation
Production sample50 cyclesPer lotFunctional verification

Vibration Testing

TestStandardParametersCriteria
Sine vibrationMIL-STD-81010-2000 Hz, 10GNo discontinuity >1μs
Random vibrationMIL-STD-81020-2000 Hz, 7.7 GrmsNo physical damage
ShockMIL-STD-810100G, 11ms half-sineNo damage, functional

Cable and Strain Relief

TestParametersCriteria
Pull test50 lbs (222N), 1 minuteNo movement, no damage
Bend test10x cable diameter, 180°No damage at entry
Torsion test±90°, 100 cyclesNo degradation

Advanced Testing (Optional/Custom)

Helium Leak Detection

  • Sensitivity: 1×10⁻⁹ mbar·L/s
  • Application : Critical deep-sea, military, nuclear
  • Standard: MIL-STD-883 or custom

EMC/EMI Testing

  • Electromagnetic interference susceptibility
  • Radio frequency interference testing
  • Electrostatic discharge (ESD) testing
  • Available through certified partner labs

Material Analysis

  • XRF material verification
  • Hardness testing
  • Metallographic examination
  • Coating thickness measurement

Certification and Documentation

Standard Documentation (Included)

  • ✓ Certificate of Conformance (CoC)
  • ✓ Pressure test report
  • ✓ Electrical test report
  • ✓ Material certificates (on request)
  • ✓ Dimensional inspection report

Optional Documentation

  • Third-party inspection reports
  • Class approval certificates (DNV, ABS, LR)
  • Full material traceability
  • Environmental test reports
  • Custom test protocols

Testing Facilities

HYSF operates in-house testing facilities including:

  • Hyperbaric pressure chambers (up to 600 bar)
  • Electrical test stations
  • Environmental chambers
  • Salt spray cabinets
  • Mechanical test equipment

Specialized testing is conducted through ISO 17025 accredited partner laboratories.

Quality Standards

  • ISO 9001:2015 certified manufacturing
  • Testing per MIL-DTL-24308, MIL-STD-810, or customer specifications
  • Full traceability from raw materials to finished product
  • Calibrated equipment with NIST-traceable standards

Nous contacter

Testing inquiries: [email protected]
Support technique : [email protected]
Certification requests: [email protected]

Image de John Zhang

John Zhang

(PDG et ingénieur en chef)
Courriel : [email protected]
Avec plus de 15 ans d'expertise dans la technologie des interconnexions sous-marines, je dirige l'équipe R&D de HYSF dans la conception de solutions à haute pression (60MPa). Mon objectif est d'assurer une fiabilité sans fuite pour les ROV, les AUV et les instruments offshore. Je supervise personnellement la validation de nos prototypes de connecteurs personnalisés.

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John Zhang

PDG

Jason Liu
Kevin Wang
Cindy Chen
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