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 . <EOS>