A valve assembly for a fuel pump and comprising: a one-way outlet closing valve, which only allows fuel to flow out; a one-way pressure relief valve, which only allows fuel to flow in; a connector, which has a housing on the inside; a valve disc, which engages the housing of the connector and has a plurality of through outlet holes, which are part of the outlet closing valve and are each provided with a first valve seat obtained in the area of a first wall of the valve disc, and a through relief hole, which is part of the pressure relief valve and is provided with a second valve seat obtained in the area of a second wall of the valve disc parallel to and opposite the first wall; an annular body, which is arranged in the housing of the connector, engages the housing without clearance and has a central through hole with a cylindrical shape, which allows fuel to axially flow towards the valve disc; a spring, which is part of the pressure relief valve, is arranged in the central hole of the annular body and pushes a shutter of the pressure relief valve against the second valve seat; a striker body, which is cup-shaped so as to contain, on the inside, one end of the spring, has a centrally perforated base wall, against which the spring rests, is arranged in the central hole of the annular body and is fixed inside the annular body; and a connection element, which is interposed between the shutter of the pressure relief valve and the spring; the valve assembly is characterized in that the central hole of the annular body has an annular protuberance, which projects from a wall of the central hole and constitutes a limit stop that limits the travel of the connection element. a one-way outlet closing valve, which only allows fuel to flow out; a one-way pressure relief valve, which only allows fuel to flow in; a connector, which has a housing on the inside; a valve disc, which engages the housing of the connector and has a plurality of through outlet holes, which are part of the outlet closing valve and are each provided with a first valve seat obtained in the area of a first wall of the valve disc, and a through relief hole, which is part of the pressure relief valve and is provided with a second valve seat obtained in the area of a second wall of the valve disc parallel to and opposite the first wall; an annular body, which is arranged in the housing of the connector, engages the housing without clearance and has a central through hole with a cylindrical shape, which allows fuel to axially flow towards the valve disc; a spring, which is part of the pressure relief valve, is arranged in the central hole of the annular body and pushes a shutter of the pressure relief valve against the second valve seat; a striker body, which is cup-shaped so as to contain, on the inside, one end of the spring, has a centrally perforated base wall, against which the spring rests, is arranged in the central hole of the annular body and is fixed inside the annular body; and a connection element, which is interposed between the shutter of the pressure relief valve and the spring; the valve assembly is characterized in that the central hole of the annular body has an annular protuberance, which projects from a wall of the central hole and constitutes a limit stop that limits the travel of the connection element.