• Pressure proof and watertight hatches using EH36 standard materials
• Designed, built and tested in accordance with PD 5500, IMCA guidelines and witnessed by Lloyd's Register.

JFD has designed and built a range of hatches for naval submarines, including external hatches and internal watertight bulkhead doors. These can be shock and vibration qualified as well as 3rd approved under Classification Body's.

The primary method of escape, these may also be combined with routine access on and off the submarine for special forces operations, and be surrounded by the rescue mating seat.

They are fitted with upper and lower hatches which form part of the submarine's pressure-tight boundary.