Fluid transferring device and a method for mounting such a device

A fluid transferring device (5) arranged for transferring fluid through a through hole (9) in a surface (11), wherein said fluid transferring device (5) comprises a first part (1) and a second part (3) arranged to be connected to each other from one side each of the surface (11) through the through hole (9), said fluid transferring device (5) is designed for transferring the fluid from one side of the surface (11), through the first and second parts (1, 3) to the other side of the surface (11), the first part (1) comprises a fluid collection part (19) arranged to receive fluid provided to the surface (11), and at least the first part (1) comprises a seal (13) for sealing around the through hole (9) when the first and second parts (1, 3) are connected to each other.