Abstract: The invention concerns a device consisting of at least a valve comprising a body (1) with a through channel (5), provided with several orifices and in particular orifices (4) serving both as intake and/or through passage, which orifices (4) are provided to enable, by means of accessory components, two bodies to be juxtaposed, and provide a common supply to several valves. The communication between the intake channel (5) and the outlet port (9) is provided by means of a cylindrical bore and a slide valve mobile in said bore. The outlet port (9) is located above the channel (5) and a bleed orifice (16) is located beneath said channel. Said bleed orifice (16) is in communication with the outlet port by means of the slide valve.