Wärtsilä LNGPac

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Wärtsilä LNGPac

Wärtsilä LNGPac™ is a complete Fuel Gas Supply System for the LNG fuelled ships and includes several modules including, but not limited to, the storage LNG tank, the bunker station, the process equipment as well as the control and monitoring system. Wärtsilä can deliver tailored-made or standard LNG systems for any type of ships, integrated with the rest of the Wärtsilä portfolio and with features designed to optimize the energy efficiency on board. 

LNGPac Big

Key benefits

  • Advanced degree of automation and remote operability of the systems
  • Cold recovery patent for additional energy savings onboard
  • Lifecycle services
  • Data analysis on-site or from remote
  • Smooth integration with other Wärtsilä equipment
  • Approved solutions with different storage technologies and configurations
  • Widest experience with the major and several minor classification societies

    Technical data

    • Type C pressure storage tanks. Design pressure from 4 to 9 bar
    • Processes based on pressure build up principles, pump or a combination of pump and compressor
    • Vacuum (MLI and Perlite) or polyurethane foam insulation
    • Installation of the tank: vertical, longitudinal or transversal
    • Delivery of the process equipment skid mounted or built on the tanks as a fully enclosed unit
    • Class approved safety and control system
    • Dedicated control and monitoring system with possibility for remote data collection and analysis

    The Wärtsilä LNGPac™ system is based on an IMO type C LNG storage tank with either double walled vacuum or single walled polyurethane insulation. Bunkering takes place from the bunkering station to the LNG tank via an insulated pipe. All necessary process equipment is installed in a separate unit which can be either mounted directly to the LNG tank or placed remotely from the LNG tank. The main process equipment ensures correct gas temperature and pressure for the engines and other gas consumers.

    The LNGPac system can be customised to the needs of each project on a case to case basis. Dedicated engineering is conducted from the beginning of the project to match the specific operational requirements, safety- and classification society requirements.


    • Integrated solution with the rest of Wärtsilä´s portfolio (e.g. GVU, Engines, Automation)
    • Cold Recovery system for additional energy savings on board
    • Widest experience in the world with projects from 25 cbm of LNG to 18.000 cbm, different tank types/configurations, and different processes
    • Standard solutions available
    • Life cycle services
    • IGF trainings and LNGPac™ simulator


    Wärtsilä can deliver LNG systems for propulsion and power generation for any applicable types of ship or engine, either as a standalone product or as a part of a complete propulsion system.

    Current references include the following ship types:

    • Product and chemical tankers
    • Cruises
    • Ferries
    • RoRo and RoPax
    • OSV and PSV
    • Tugs, Dredgers, cable layers
    • Wind installation vessels

    LNGPac™ hits a century


    We are proud to work closely with and support the following organisations to further the use of LNG as marine fuel.





    Customer stories

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      Harvey Gulf

      Wärtsilä integrated LNG system for six LNG offshore vessels

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      JS INEOS Insight

      This multigas carrier features a comprehensive Wärtsilä solutions package

      Read more about JS INEOS Insight
    • Bit Viking
      Bit Viking

      In 2011, the first ever marine conversion of Wärtsilä 46 engines to Wärtsilä 50DF dual-fuel engines was carried out on the product tanker Bit Viking, owned by Tarbit Shipping of Sweden. It also represented the first Wärtsilä 50DF dual-fuel marine installation with mechanical propulsion.

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    • Viking-grace-small-slide
      Viking Grace

      The world’s first LNG passenger vessel – powered by Wärtsilä

      Read more about Viking Grace


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