A fuel valve for injecting low flashpoint liquid fuel into the combustion chamber of a large slow running two-stroke turbocharged self-igniting internal combustion engine, said fuel valve comprising: an elongated valve housing with a rear end and a front end, a nozzle with a plurality of nozzle holes, said nozzle being disposed at the front end of said elongated valve housing, a fuel inlet port in said elongated valve housing for connection to a source of pressurized low flashpoint fuel, an actuation fluid port in said elongated valve housing for connection to a source of actuation fluid, an axially displaceable valve needle slidably received in a longitudinal bore in said fuel valve, said valve needle having a closed position and an open position and said valve needle being biased towards said closed position, said valve needle allowing flow of fuel from a fuel cavity to said plurality of nozzle holes when the valve needle is in its open position and said valve needle preventing flow of fuel from said fuel cavity to said plurality of nozzle holes when the valve needle is in its closed position, said valve needle being operably connected to a needle actuation piston with a pressure surface of said needle actuation piston facing a needle actuation chamber in said fuel valve for urging said valve needle against said bias away from said closed position, said needle actuation chamber being fluidically connected to a control port by a control conduit such that the valve needle gets lift when the needle actuation chamber is pressurized, a pump piston received in a first bore in said valve housing with a pump chamber in said first bore on one side of said pump piston, an actuation piston received in a second bore in said elongated valve housing with an actuation chamber in said second bore on one side of said actuation piston, said pump piston being connected to said actuation piston to move in unison therewith, said actuation chamber being connected to the actuation fluid port, said pump chamber having an outlet fluidically connected to said fuel cavity and an inlet fluidically connected to said fuel inlet port, wherein the outlet of said pump chamber is connected to said fuel cavity by one or more fuel channels, and wherein a first one-way valve is provided in said one or more fuel channels, said first one-way valve being configured to allow flow of low flashpoint fuel from said pump chamber to said fuel cavity and to prevent flow from said fuel cavity to said pump chamber. an elongated valve housing with a rear end and a front end, a nozzle with a plurality of nozzle holes, said nozzle being disposed at the front end of said elongated valve housing, a fuel inlet port in said elongated valve housing for connection to a source of pressurized low flashpoint fuel, an actuation fluid port in said elongated valve housing for connection to a source of actuation fluid, an axially displaceable valve needle slidably received in a longitudinal bore in said fuel valve, said valve needle having a closed position and an open position and said valve needle being biased towards said closed position, said valve needle allowing flow of fuel from a fuel cavity to said plurality of nozzle holes when the valve needle is in its open position and said valve needle preventing flow of fuel from said fuel cavity to said plurality of nozzle holes when the valve needle is in its closed position, said valve needle being operably connected to a needle actuation piston with a pressure surface of said needle actuation piston facing a needle actuation chamber in said fuel valve for urging said valve needle against said bias away from said closed position, said needle actuation chamber being fluidically connected to a control port by a control conduit such that the valve needle gets lift when the needle actuation chamber is pressurized, a pump piston received in a first bore in said valve housing with a pump chamber in said first bore on one side of said pump piston, an actuation piston received in a second bore in said elongated valve housing with an actuation chamber in said second bore on one side of said actuation piston, said pump piston being connected to said actuation piston to move in unison therewith, said actuation chamber being connected to the actuation fluid port, said pump chamber having an outlet fluidically connected to said fuel cavity and an inlet fluidically connected to said fuel inlet port, wherein the outlet of said pump chamber is connected to said fuel cavity by one or more fuel channels, and wherein a first one-way valve is provided in said one or more fuel channels, said first one-way valve being configured to allow flow of low flashpoint fuel from said pump chamber to said fuel cavity and to prevent flow from said fuel cavity to said pump chamber.