Sealing element and valve needle for use in a metering device

In a metering device for dosing pressurised fluid, in particular an injection valve for a fuel injection system in an internal combustion engine, said metering device comprising a chamber (9) within a housing (8), comprising said pressurised fluid, a valve needle (5, 6) passing through said chamber, having a valve needle shaft (5) with a first end (5a) cooperating with an actuator assembly outside said chamber and a second end (5b) controlling the opening and closing of a metering opening, and a sealing element (1) as a feed through element for the first end (5a) of said valve needle shaft from inside the chamber (9) to the outside (10), wherein the inside pressure is higher than the outside pressure and the chamber (9) is sealed to the outside (10), a metal to metal sealing connection without any weld joint is provided between the valve needle shaft (5) and the sealing element (1).