Electromagnetic proportional valve

An electromagnetic proportional valve having first and second valve chambers (13, 15) embodied in a valve body (11), the first valve chamber (13) communicates with a first valve inlet (14) for connecting the first valve chamber of a first pressure source and the second valve chamber (15) communicates with a second valve inlet (16) for connection to said second valve chamber of a second pressure source, an outlet chamber (17) that communicates with a valve outlet (18) and embodied in the valve body (11) for controlling an outlet pressure, a fixed valve (20) is disposed between the outlet chamber (17) and the first valve chamber (13) and a movable valve (21) is disposed between the outlet chamber (17) and the second valve chamber (15), the valves each have a respective valve seat (24, 25) that surrounds a valve opening (22, 23), and a valve member (26, 27) that cooperates with the respective valve seat, and the valve seat (24) of the fixed valve (20) is embodied on the valve body (11) and the valve seat (25) of the movable valve (21) is embodied on the valve member (26) of the fixed valve (20), and a valve closing spring (28) acts on the valve member (26) of the fixed valve (20) and an electrically triggered proportional magnet (12) acts on the valve member (27) of the movable valve (21), and a movable sealing element that seals off the two valve chambers (13, 15) from each other and is fixed on the one hand to the valve member (26) of the fixed valve (20) and on the other to the valve body (11), the sealing element is embodied as a metal bellows (29), which extends all the way through the first valve chamber (13).