Valve with valve unit and pushbutton housing with actuating button

A valve (1) for a sanitary fitting, comprising

• a valve unit (2) having a valve housing (3), an inflow connection (4), and an outflow connection (5) for transferring fluid supplied via the inflow connection (4), wherein the inflow connection (4) and the outflow connection (5) are switchably connectable to each other by the valve unit (2), wherein the inflow connection (4) and the outflow connection (5) are fluidically separated from each other in a first position of the valve unit (2) and are connected to each other in a second position;
• and
• a pushbutton housing (6) which is connected to the valve housing (3) and has an actuating button (7) for switching the valve unit (2), wherein the actuating button (7) is held in a starting position (8) by a first holding mechanism (9);
• wherein, starting from the starting position (8), by shifting the actuating button (7) by a first distance (11) along an axial first direction (10), a second holding mechanism (12) of the valve unit (2) is configured to be actuated, such that the valve unit (2) is configured to be switched between the first position and the second position;
• wherein the first holding mechanism (9) has a first spring (13) and the second holding mechanism (12) has a second spring (14) which are preloaded in the starting position (8) and in the first position in each case with respect to the axial direction (10);
• wherein by actuating the second holding mechanism (12), the second spring (14) relaxes at least partially and thereby shifts at least a part (15) of the valve unit (2) by a second distance (17) along an axial second direction (16) and thus switches the valve unit (2);
• wherein by the relaxing of the second spring (14), the first holding mechanism (9) is configured to be actuated and the first spring (13) thus relaxes at least partially and thus shifts the actuating button (7) by a third distance (18) along the axial second direction (16) towards an actuating position (19).