They also provide the communication from the Truck to the Trailer including the workings of the rear lights

The 50 lux line

Reinforced Overstrike Protection: Increases durability in the most common failure point

Haldex or Wabco fitted to any type of commercial vehicle whether it be truck

EBS 22.01.3126 CHARGING VALVE ( 4341001260 ) Non-Reversible They also provide the communicationThe function of a quick release valve is to rapidly exhaust air from the controlled device. It is normally located adjacent to the controlled device, rather than requiring exhaust air to return and exhaust through the control valve. This decreases release time. A check valve is a device that only allows the flow of air in one direction and are commonly referred to as non return valves or one way valves. Weight 0. 5 kg Dimensions 80 x 53 x 88 mm Cross