- If a brake circuit fails or is defective (e.g. fracture of the line or of the connection), the trailer brake closes - braking is initiated
- Faulty or worn seals can be replaced
- Often used in conjunction with a shut-off valve
For dual line pneumatic brake systems for connecting the supply and brake lines.
For use on a trailer as a counterpart to the automatic coupling heads.
Select RAL-colour code
!! NOTE: On-screen visualisation of the colour differs from real colour shade!!