Subsea Failure Isn’t Theoretical —
It’s Expensive
When Dolphin Agencies upgraded their ROV fleet, they tested multiple options — and found that some popular subsea connectors couldn’t keep water out or survive open-face pressure at depth.
Their choice? The JOWO 8819 — a rugged, field-serviceable push-pull connector rated for 300m open-face submersion, built for real-world ROV use.
SubConn and Fischer Connectors
Aren’t Always Enough
When every dive counts, even a drop of moisture inside your cable is a dive lost.
Dolphin's ROV systems were experiencing:
- Water ingress on older SubConn MCIL-type wet-mate connectors
- Signal loss during vibration-heavy missions
- Long prep times due to potting requirements
- Failed continuity during unplug/plug cycles
These issues weren’t just operational — they were costing crew time, dive windows, and risking gear loss.
WHY THEY FALL SHORT
Popular subsea connector brands have their limits — especially under pressure.
SubConn Wet-Mate Series: Often used on ROVs and towed gear. While rated IP68, many models require careful sealing and greasing, and cannot be unmated at depth without water ingress. (macartney.com)
Fischer Core Series (SE/DE): Premium sealed push-pull connectors with good ratings, but most are not certified for unmated 300m open-face submersion, and not ATEX rated. Common in labs and sensors but less field-friendly.
BIRNS Millennium Series: Military-grade, but high cost, complex mounting, and long lead times; not ideal for modular, small ROVs needing fast serviceability.
Choose Subsea Connectors for Performance,
Not Just Brand Recognition
Your next ROV failure might be avoided — just by upgrading your connector.
When reviewing ROV umbilical or sensor terminations, ask:
☑️ Can it be unplugged underwater without flooding?
☑️ Rated IP68 / 30 bar for open-face pressure?
☑️ ATEX certified for flammable zone ROV work?
☑️ Tool-free push-pull operation?
☑️ Field-serviceable without curing epoxy?
Download the ROV Connector Selection Guide — includes comparison charts and spec checklists.
Why Dolphin Agencies Switched to the JOWO 8819
Flawless dives, no leaks, easier maintenance — that’s the 8819 difference.
The JOWO 8819 proved itself during multiple deep-sea ROV missions:
✅300m waterproof open-face rating (30 bar)
✅No potting needed — seals via elastomeric compression
✅Push-pull coupling with secure lock ring
✅Configurable with 4 or 7 contacts — up to 750V / 43A
✅Certified for ATEX/IECEx hazardous environments
“One connector came loose mid-dive. We reconnected it underwater — dry, tight, fully operational. That sealed the deal.” – Operations Manager, Dolphin Agencies
Real Engineers. Real Missions. Real Results.
ROV crews now demand 8819 over legacy SubConn and Fischer systems.
✅ Used across Dolphin Agencies’ comms gear and lighting circuits
✅ Reduced downtime and assembly labor
✅ Preferred by technicians for field servicing
📦 Now in-stock at Texas Electrical Connectors with $1000 Free USA Shipping
Subsea connectors should perform under pressure — literally.
Legacy connectors that can't be disconnected at depth or require grease and potting have no place in fast-moving ROV missions.
The JOWO 8819 makes every dive simpler, safer, and more reliable.
Your ROV deserves better connections.
🔹 Download the Subsea Comparison Guide
🔹 $1000 Free USA Shipping