Wärtsilä has entered an agreement to maintain the fuel gas handling system installed onboard Finnish ferry company Viking Line’s passenger ferry, Viking Grace.

The optimised maintenance agreement also covers condition-based maintenance (CBM) and online support for the Wärtsilä LNGPac system installed on Viking Grace.

The deal facilitates the planning and scheduling of the Viking Grace’s maintenance procedures in accordance with its business operations, extending Wärtsilä’s current optimised maintenance agreement for the ferry for a further five years.

Furthermore, the deal will increase the performance reliability and maximise the vessel’s uptime, eventually benefiting its owner and passengers.

Wärtsilä’s CBM system is designed to collect data on the average gas flow, the temperatures of heat exchangers, the use of energy, and the pressure of LNG pumps.

The information helps in planning and scheduling various maintenance procedures to enhance cost predictability and uptime.

Viking Line Marine Operations and NB senior vice-president Ulf Hagström said: “Environmental considerations are, along with the need to optimise operational efficiency, high on the agenda of Viking Line.

“Wärtsilä is a forerunner in dual-fuel and other environmentally sound technology and has repeatedly shown its excellence in technical assistance and service for Viking Line and Viking Grace.

“Environmental considerations are, along with the need to optimise operational efficiency, high on the agenda of Viking Line.”

“With this agreement, we will be able to utilise the full potential of Wärtsilä’s knowledge and know-how.”

The Wärtsilä LNGPac gas handling system has been designed for ships powered by liquefied natural gas (LNG).

It is equipped with on-board liquid natural gas bunkering capability, two storage tanks, and handling equipment with related safety and automation systems.

Viking Grace entered service in 2013 and is powered by four Wärtsilä 50DF main engines running on LNG.

The vessel also features transverse bow and stern tunnel thrusters, as well as two stainless-steel fixed pitch, built-up main propellers with complete propeller shaft lines and environmentally sound shaft line seal systems provided by Wärtsilä.

It is designed to carry 2,800 passengers and operates between Turku in Finland, and Stockholm, Sweden, through the Baltic Sea.