Valve specialist Parker Bestobell Marine has secured another major new order for its cryogenic valves, supplying the first ever globe valves featuring electric actuators to liquefied natural gas (LNG) carriers.
The order for Daewoo Shipbuilding & Marine Engineering (DSME) in South Korea will see the UK-based business supply the cryogenic valves for three new vessels in the Yamal series of Arc-7 ice-class LNG carriers.
For the project, Parker Bestobell had to reinvent its valves design in order to withstand the extreme Arctic operating conditions. As such, Bestobell replaced its hydraulic oil actuators with electric actuators to ensure efficient operation and avoid viscosity issues in the Baltic temperatures.
Duncan Gaskin, Market Development Manager at Parker Bestobell Marine, signified, “This project called upon the innovation of our design and technical engineers to come up with a solution to ensure that the actuators would operate normally in such extreme environments.”
The company’s valves will be used in the cargo handling systems, including the main discharge line that controls the initial flow of LNG from the cargo tanks when pumping commences. The ‘on-deck’ valves have been designed to operate at temperatures of -196°C. Parker Bestobell Marine will also supply covers for the headworks to protect the exposed part of the valves.
Fifteen Arc7 ice-class carriers are set to be built in this series by DSME for three different owners; MOL in Japan, Teekay in Canada and Dynagas of Greece, all of which have been designed specifically for the LNG Yamal project in Russian Siberia.
From 2018, the Yamal LNG project is expected to produce 16.5 million tonnes of liquefied natural gas per year.