Trailer Control Valve

BUENO’s Trailer Control Valve is engineered to control the vehicle’s trailer braking with a tractor-trailer combination.

The major functions of this valve include:
1.Normal charging of trailer reservoir when no brake application is made
2.It supplies increased pressure to the trailer brakes during normal service brake application
3.Application of trailer brakes when the foot brake valve primary circuit has failed
4.Application of trailer brakes when tractor spring brakes are actuated
5.Protect the tractor circuit by activating dump feature when either supply or control line fails