A four axle bogie tank car for a transportation of dengerous items according to RID instruction, the code of a tank car: L 1,5 BN. A way of discharge: by a central discharge PREUSSAG CB DN 100, with an air outlet-valve mechanical-hydraulic operated PREUSSAG, type EA15/1-4DN 100 and end spherical valves DN 100 according to ON 13 6710.