Silicone Ballast Hose Trimaran Actual Ultim 4

Definition and Technical Specifications

The REDOX silicone hose kit for ballast systems was developed specifically for the Ultim class trimaran Actual Ultim 4, one of the world's most powerful ocean racing sailboats. This complete kit ensures the sealing and reliability of the ballast circuit that optimizes boat stability and performance under extreme sailing conditions.

Manufactured from multi-layer reinforced silicone, these hoses offer exceptional resistance to mechanical stress, temperature variations and seawater. Their flexibility allows easy installation in the confined spaces of the central hull while maintaining perfect pressure sealing.

Kit technical specifications:

• Total developed length: 360mm
• Overall height: 280mm
• Multiple segments with various diameters: Ø50mm, Ø54mm, Ø63mm
• Multi-layer reinforced construction for intensive marine use
• Operating temperature: -50°C to +180°C
• Pressure resistance: up to 4 bar
• Material: high-performance fibre-reinforced silicone
• Smooth inner finish for optimal flow

Applications and Compatibility

This hose kit was custom-designed for the ballast circuit of Actual Ultim 4, the 32-meter giant trimaran skippered by Anthony Marchand. Actual Ultim 4 is the former Maxi Edmond de Rothschild which won the greatest ocean races: Brest Atlantiques 2019, Transat Jacques Vabre 2021, Route du Rhum 2022 and Arkéa Ultim Challenge 2024.

The ballast system installed in the central hull allows seawater transfer to correct heel and optimize boat trim according to sailing conditions. REDOX hoses ensure water circulation between tanks with total reliability – a crucial element for safety and performance in offshore racing.

This kit may also suit other demanding marine applications requiring high-performance hoses for ballast systems, cooling or fluid transfer on racing sailboats and competition vessels.

REDOX Advantages

REDOX maintains permanent stock of this hose kit to meet the urgent needs of racing teams and shipyards. Every order placed before 5pm is shipped the same day from our warehouses. Delivery takes place within 48 hours throughout mainland UK and across Europe.

The REDOX lifetime warranty demonstrates our absolute confidence in the quality and durability of our silicone hoses. This warranty covers manufacturing defects and provides complete peace of mind for the most demanding professional applications. Our technical team remains available for installation advice or compatibility questions regarding your project.