Abstract: A device for an axial cyclone (1) of the kind which is used for separating a fluid from a gas, where the gas flowing through the axial cyclone (1), primarily in the axial direction of the axial cyclone (1) assigns a rotation around the centre axis (12) of the axial cyclone (1), and where the axial cyclone (1) comprises in the flow direction of the fluid an inlet pipe (2), a transitional part (4) and a downstream pipe (6) where the downstream pipe (6) is supplied with a cross-sectional area smaller than the cross-sectional area of the inlet pipe.