Project Overview
Between April and August 2025, the Marine Department at TTS successfully completed a critical upgrade to the Vehicle Deck Drencher System on a Ministry of Defence (MOD) naval vessel. Led by Supervisor Gary Potter, the team replaced and maintained over 1,000 metres of pipework and 2,000 fittings, ranging from 1” to 6”. The upgrade used CuNi 9010 alloy to enhance system reliability and corrosion resistance in a high-risk operational environment.
Objectives
The project’s main goal was to replace corroded carbon steel pipes with CuNi 9010 alloy. This material was chosen for its superior resistance to internal corrosion and blockages. As a result, the foam rail system’s efficiency and durability were significantly improved, ensuring optimal performance during emergency situations.
Project Details
TTS managed the project from start to finish. First, the team removed the existing carbon steel pipework. Then, they transported the components from Falmouth to several workshops in the North East. There, fabricators produced new CuNi 9010 pipes, precisely matching the original system to ensure seamless reinstallation.
After fabrication, the new pipework returned to Falmouth for onboard installation. The team used TIG welding with a purged setup to maintain high weld quality and meet stringent marine standards. To reduce operational downtime, they carefully scheduled key manufacturing milestones.
Due to the complex routing of the system, the team also carried out penetration work on the vessel. This included installing watertight bulkheads to preserve structural integrity and prevent water ingress in case of hull damage.
