JFD Global’s Submerged Signal Ejector (SSE) is a safety-critical system designed for submarines to launch signal flares and compatible hardware from depth - most commonly in emergency situations.

Operated from within the pressure hull, the SSE provides a safe and effective method of deploying markers or emergency signals without surfacing.

Purpose-Engineered for Submarine Safety

The SSE is fully integrated into the submarine’s pressure hull systems, allowing crew to deploy emergency payloads through the casing at depth. Compatible with leading signal devices such as the T-1630A/SRT Submarine Emergency Position Indicating Radio Beacon (SEPIRB), it’s a trusted component for modern naval operations.

 

Key Features

Feature

Description

Pneumatic Operation

Reliable launch mechanism powered by onboard air systems.

Emergency Override

Backup device included in case of pneumatic failure.

Cable Cutting Device

Ensures safe release and detachment of deployed signals.

Flare Recovery Device

Optional system for retrieval of unused or test flares.

Internal Loading

Can be loaded from within the submarine’s pressure hull for secure handling.

Certified for Performance and Safety

Every JFD SSE is manufactured to meet rigorous naval, environmental, and safety standards:

  • CE Marked
  • DNV-RU-NAV Pt.8 – DNV Rules for Naval Submarines
  • PD5500:2021 – Fusion welded pressure vessels
  • ASME PVHO – Pressure Vessels for Human Occupancy
  • MIL-STD-901D – High-impact shock testing
  • MIL-STD-167 – Mechanical vibration standards
  • MIL-STD-810G – Environmental durability testing

Material Certifications Include:

Super duplex, duplex, 316 stainless steel, aluminium bronze, and certified structural steels (e.g. Bumaz SDX109, Ferralium).

Built for Integration and Operational Confidence

JFD’s SSE is not only rugged and reliable ; it’s designed for seamless integration into new-build or retrofit submarine platforms. With surface treatment for corrosion protection and military-grade componentry, it's built to withstand the extreme conditions of undersea operations.

With decades of experience supporting military diving and submarine systems, JFD delivers the tools navies need to maintain readiness, safety, and mission assurance, when it matters most.