Diamond knurling for improved grip and control

for right-hand traffic - Registration Type: ECE/CCC - Country Specific Design: Europe/China - paired article number: 1ZS 009 902-521

IVECO : 71004012

ALEXANDER DENNIS : 6518471

EBS 23.03.1001 RELAY VALVE ( 201020020 ) CH23.800 Diamond knurling for improved gripOn 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