This jacket is their equal

Audi A7 Sportback (4GA

7EC) (please check exact vehicle application)

Maximum busbar load 100 amps

EBS 23.01.8009 PROPORTIONAL RELAY VALVE ( 4802020090 ) Hand Tools This jacket is their equalOn some trucks & trailers, the distance from the brake chambers to the foot valve is too far to cause immediate application of the brake when the foot valve is depressed. This is called brake lag. To correct this situation, a relay valve is installed near the rear brake chambers. A large diameter pipe is connected between the service reservoir and relay valve. The air line from the foot valve to the relay valve now becomes a control line that signals