DEVICE FOR CONTROLLING THE BRAKING OF A TRAILER

A device (1) for controlling the braking of a trailer, comprising - a body (2) wherein is formed at least a first seat (3) communicating with at least a main gap (4) connectable to a source of a work fluid at a first pressure, with at least an exhaust gap (5) of the work fluid, with at least a braking gap (6) communicating with a first line (7) connectable to the braking system of a trailer; - at least a first distributor element (9) housed in a sliding manner within the first seat (3) and movable between at least an idle position and at least a braking position; - piloting means (10) of the first distributor element (9) connectable to the braking system of a towing vehicle; - at least a second seat (22) formed in the body (2) and communicating with at least a secondary gap (23) connectable to a source of the work fluid at a second pressure, with the exhaust gap (5) and with at least an additional gap (25) communicating with a second line (26) connectable to the automatic and/or parking brake of the trailer; - at least a second distributor element (27) housed in a sliding manner within the second seat (22) and movable between a normal operating position and an emergency position; and wherein it comprises command means (31) of the shift of the second distributor element (27) from the normal operating position to the emergency position.