Trelline - Offshore Oil and Gas Hoses - Trelleborg Fluid Handling Solutions - Trelleborg AB


TRELLINE is a bonded custom-built flexible hose with a long service life ensure by hydrodynamic and fatigue analysis.
TRELLINE hose is adapted to a large range of applications: OOL (oil offloading line), flowline, shallow water configuration, reeling system.

Product Overview

Custom-built design


High quality & performance


Service life guarantee


Cost effective solution



Design & Performance

The TRELLINE hose is designed and certified in accordance with the API spec 17K, and ensures you the best quality and performance, in line with the environmental and operational conditions of your project.
Each hose section is made with reinforced flanges fully embedded in rubber, integrated bending stiffener and a reinforced structure with steel rings. This design ensures high performance to the identified loads, high resistance to fatigue, high thermal insulation.
The hose is also made with a continuous inner liner and integrated gaskets (internal and external) and limits the pressure drop.
There is no contact between seawater, the fluid and the hose structure, and ensure a perfect sealing solution.
The TRELLINE internal diameter can be extended up to 1000mm (40”) with a section length up to 12.2m (40’) with a design pressure up to 100 bars.
Cost effective solution
TRELLINE offers a lot of advantages and aneconomic solution such as reduced pump capacity and global system, Onshore or Offshore installation with light equipments and tools, quick and easy to repair or replace, minimized inspection and maintenance, controlled and known fatigue with up to 25 years service life, short delivery time, conventional transportation with containers. Field proven technology TRELLINE system has been originally developed in the 2000's for specific deepwater offloading applications as the best alternative to unbonded systems.
As of today Trelleborg has built over one thousand TRELLINE hoses and executed several certified projects all over the world.

Methodology principle

API17K is the most stringent standard applicable to a bonded marine hose. This certification basically means that, for given boundaries, we are able to accurately compute stresses & strains in any layer of any components of our marine hoses. From this simulation capability we can predict fatigue lifetime for cyclic loadings using SN curves that covers all our raw materials. This simulation capability also enable us to verify hose integrity versus extreme static load cases. During certification work, this simulation capability is compared with full scale fatigue tests and combined static load cases to validate our design tools and methodology. Finally, materials ageing and mechanical properties evolution over the time are verified through small scale tests and correlated with feedback from real applications.


API Q1 Certificate

API Q1 Certificate (PDF)  

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API Spec 17K Certificate

API Spec 17K Certificate (PDF)  

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ISO 9001 Certificate

ISO 9001 Certificate (PDF)  


ISO 14001 Certificate

ISO 14001 Certificate (PDF)  


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