303.02.0108 DAF SCANIA WABCO Compatible 4-circuit protection valve

This heavy-duty 4-circuit protection valve plays a critical role in maintaining pneumatic stability within the brake system of heavy commercial vehicles. By managing pressure distribution across multiple circuits, it ensures that even if one circuit fails, the remaining systems maintain sufficient pressure for safe operation. The component is engineered with high-strength components to withstand the rigorous demands of long-haul transport.

303.02.0108 is the OE-equivalent of the DAF 1525882, SCANIA 1444899, and WABCO 934 714 732 0 used in heavy commercial vehicle brake systems. It features specific pressure settings: Port 21 and 22 open at 7,5 BAR with a closing pressure of 5,5 BAR, while Port 23 opens at 8,5 BAR and Port 24 opens at 7,5 BAR (closing at 5,5 BAR). This precise calibration ensures optimal pneumatic performance and safety.

For workshop technicians performing maintenance or system repairs, this valve offers a direct fit with standardized M22x1,5 and M16x1,5 port sizes. Regular inspection of the connection points and pressure thresholds is recommended to ensure the pneumatic circuits remain responsive during heavy-duty operation. This part is specifically designed for professional service environments to maintain fleet reliability.