A separating device for separating at least one liquid fluid from gas, comprising at least one separating element having a housing with a housing cover and a filter element disposed therein, wherein the housing cover features a housing cover thread designed to be screwed onto a connecting element thread, at least one first gas passage disposed centrally, in particular coaxially, with respect to an assembly axis of the separating element at a connecting means and to which the housing cover thread is allocated, at least one second gas passage, which is disposed radially outside the first gas passage with respect to the assembly axis of the separating element, at least one connecting element designed for connecting the separating element of the separating device to a connecting means, said connecting element featuring the connecting element thread and a conduit element, wherein a circumferential element adjoins the connecting element thread and extends in the axial direction into an interior space of the separating element, wherein the connecting element thread and the circumferential element surround the conduit element, and wherein at least one fluid channel extending in an axial direction is designed between the conduit element and the circumferential element, wherein the separating element features at least one contour element and the connecting element features at least one complementary counter contour element, which, during the intended screwing of the separating element to the connecting element, are designed for confusion-proof interaction, characterized in that the circumferential element features the counter contour element with one or a plurality of openings, which penetrate the circumferential element in the radial direction from its exterior side to the fluid channel. at least one separating element having a housing with a housing cover and a filter element disposed therein, wherein the housing cover features a housing cover thread designed to be screwed onto a connecting element thread, at least one first gas passage disposed centrally, in particular coaxially, with respect to an assembly axis of the separating element at a connecting means and to which the housing cover thread is allocated, at least one second gas passage, which is disposed radially outside the first gas passage with respect to the assembly axis of the separating element, at least one connecting element designed for connecting the separating element of the separating device to a connecting means, said connecting element featuring the connecting element thread and a conduit element, wherein a circumferential element adjoins the connecting element thread and extends in the axial direction into an interior space of the separating element, wherein the connecting element thread and the circumferential element surround the conduit element, and wherein at least one fluid channel extending in an axial direction is designed between the conduit element and the circumferential element, wherein the separating element features at least one contour element and the connecting element features at least one complementary counter contour element, which, during the intended screwing of the separating element to the connecting element, are designed for confusion-proof interaction, characterized in that the circumferential element features the counter contour element with one or a plurality of openings, which penetrate the circumferential element in the radial direction from its exterior side to the fluid channel.