A valve assembly for an injection valve , in particular for an injection valve for injecting CNG, the valve assembly comprising: - a housing providing a fluid inlet and a fluid outlet and a fluid path extending between the fluid inlet and the fluid outlet , - a needle within the housing wherein the needle is movable along a longitudinal axis (L) of the valve assembly , - a first valve seat and a first valve closing part , wherein the first closing part is movable by the needle between a closing position where the first valve closing part is in contact to the first valve seat for closing the fluid path in between and an opening position where the first valve closing part is spaced apart from the first valve seat for opening the fluid path in between, wherein the valve assembly comprises a second valve seat and a second valve closing part , wherein the second valve closing part is movable by the needle between a closing position where the second valve closing part is in contact to the second valve seat for closing the fluid path in between and an opening position where the second valve closing part is spaced apart from the second valve seat for opening the fluid path in between, characterized in that : - the valve assembly comprises a flow calibration ring which is fixed at an inside of the housing or which is part of the housing , wherein the flow calibration ring surrounds the needle at its circumference by tracing a flow gap in between, - a front face of the flow calibration ring forms the second valve seat or that a sealing , in particular a sealing ring, is mounted at the flow calibration ring , in particular at a front face of the flow calibration ring , wherein the sealing provides the second valve seat , and - the valve assembly comprises a stopping part which is formed at or fixed at the needle , wherein the stopping part and the flow calibration ring are operable to contact each other for acting as an axial stop in order to limit the maximum lift of the needle . - a housing providing a fluid inlet and a fluid outlet and a fluid path extending between the fluid inlet and the fluid outlet , - a needle within the housing wherein the needle is movable along a longitudinal axis (L) of the valve assembly , - a first valve seat and a first valve closing part , wherein the first closing part is movable by the needle between a closing position where the first valve closing part is in contact to the first valve seat for closing the fluid path in between and an opening position where the first valve closing part is spaced apart from the first valve seat for opening the fluid path in between, - the valve assembly comprises a flow calibration ring which is fixed at an inside of the housing or which is part of the housing , wherein the flow calibration ring surrounds the needle at its circumference by tracing a flow gap in between, - a front face of the flow calibration ring forms the second valve seat or that a sealing , in particular a sealing ring, is mounted at the flow calibration ring , in particular at a front face of the flow calibration ring , wherein the sealing provides the second valve seat , and - the valve assembly comprises a stopping part which is formed at or fixed at the needle , wherein the stopping part and the flow calibration ring are operable to contact each other for acting as an axial stop in order to limit the maximum lift of the needle . <EOS>