The invention relates to a tap (8) for fluids, in particular carbonated liquids, such as beer or soft drink, comprising a tap body (14), a valve (9) removably accommodated in the tap body (14), and a handle (20) for opening and closing the tap (8). The valve (9) comprises a first part (22) coupled or to be coupled to the tap body (14) and a second part (27) connected to the first part (22) and operatively coupled or to be coupled to the handle (20), the first and second parts (22, 27) being rotatable and/or translatable relative to each other between at least an open position and a closed position. A protective cap (34) prevents the valve (9) from being closed. The cap (34) is removable only after installation of the valve (9) in the tap body (14).