Integrated Vapor Management For Modern Marine Standards.
Compliant marine fuel system architectures can be broken down into 2 basic system categories - Passive Purge and Vapor Relief (Pressure). Dometic subsequently offers 6 basic iterations.
In most cases the simplest and most cost effective system is the vapor relief system. These systems hold back the vapors that can occur during diurnal temperature cycles (<1PSIG) with strategically placed valves, usually in the cap. These systems are most beneficial when there is little or no room for carbon canister installation.
If the boat is produced to meet American Boat & Yacht Council (ABYC) standards, then the fuel tank & system must be designed so venting will be able to occur when the boat is tilted or listing. In many cases additional components such as grade vent valves and multiple outlet vent ullage valves may be needed based upon the individual system requirements.
During temperature changes, fuel vapor expands inside the tank. Diurnal systems regulate this pressure by directing vapor through controlled pathways and filtration components. This process helps prevent excessive pressure buildup while reducing emissions.
Dometic can create an entire marine fuel system for your particular vessel application that meets all EPA regulations.
Vapor Management
Dometic fuel systems incorporate:
Pressure relief valves
Fill limit vent valves
Vapor lines
Carbon canisters
Vent management components
Together, these elements help maintain safe operation and support compliance with EPA evaporative emissions standards.
Components Engineered For Demanding Marine Use.
Dometic fuel systems include a range of precision-designed components that support reliable fuel delivery and vapor management.
Typical components include:
Vent valves
Fill fittings
Vapor connectors
Hose connections
Integrated fuel system assemblies
Each component is engineered for durability, compatibility, and simplified system integration.
Build Your Next Fuel System With Dometic.
Contact us today to start your next fuel tank project.