What is the working principle of the trailer brake valve?
When the brake pedal is relaxed, the compressed air from the main vehicle brake valve is discharged into the atmosphere, and the trailer is braked at the same time. Answer: net friend
Close the air intake passage of the air reservoir (wet air tank), cut off the air source, and make the brake valve of the trailer to the separation switch. The compressed air in the air pipe is rapidly discharged. At this time, the trailer for gas distribution valve and the trailer cylinder of compressed air into the trailer brake chamber, and the main vehicle to produce the braking effect.
The trailer brake valve has three vents: one through cylinder, one through main vehicle, a brake valve, and one through disconnecting switch. When the car is braking, the compressed air enters the trailer brake valve from the main vehicle brake valve
