be deflected by an angle of approximately 10 u00b0 after assembly an essential aspect of the current invention is that the interior of the fuel line 10 is connected by means of the intermediary piece 9 to the inner chamber 6 of the tubular base body 1 in a high pressure tight manner without the connection between the fitting 2 and the tubular base body 1 having to be designed as high pressure tight there is nevertheless a sufficient mobility of the fuel line 10 after installation as indicated by the line 16 in the embodiment shown on the right side of the rotational axis 19 the end 22 of the intermediary piece 9 oriented away from the tubular base body 1 is embodied as funnel shaped the funnel shaped end 22 of the intermediary piece 9 rests against a complementary sealing cone 23 which is embodied at the end of the fuel line 10 in order to prevent the intermediary piece 9 from being stretched open in this region a support surface 24 is provided on the fitting 2 and rests against the outer circumference of the intermediary piece 9 the intermediary piece 9 is braced between the fuel line 10 and the tubular base body 1 by means of a clamping surface 25 that.