Valve system for an lng tank
AssigneeWäRtsilä Finland Oy
InventorsHenrik SUNDQVIST, Mathias JANSSON, Soren KARLSSON
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Abstract
The invention relates to a valve system of a fuel tank, especially of an LNG tank, which valve system includes at least two pressure relief safety valves, in which valve system one pressure relief safety valve is located in one safety valve branch branching from an outlet line from the LNG tank. The valve system further comprises interconnected shutoff valves for shutting off one of the safety valve branches at time and that the shutoff valves are diverter valves with a T-bore.
Claims7
A valve system for an LNG fuel tank, which valve system comprises two pressure relief safety valves, in which an outlet line from the LNG fuel tank is divided into two safety valve branches each comprising one pressure relief safety valve, wherein the valve system further comprises interconnected shutoff valves for shutting off one of the safety valve branches at time so that at least one pressure relief safety valve is in operation at all times, that the safety valve branches connect to a common outlet line and one of the shutoff valves is located at the branching point of the outlet line for the LNG fuel tank and one of the shutoff valves is located at the connecting point to the common outlet line and that the shutoff valves are diverter valves with a T-bore.
(canceled)
Dependencies are inferred from the claim text.