303.02.0030 4-circuit protection valve DAF compatible

The heavy-duty grade materials used in this 4-circuit protection valve ensure reliable pneumatic regulation within the brake system. This component is designed to manage pressure distribution across multiple circuits, providing essential safety and stability for heavy commercial vehicle braking architectures.

This 303.02.0030 is the OE-equivalent of the DAF 0384037, 0384037A, 0384037R, 1238512, 1238512A, 1238512R, 384037A, and 384037R used in DAF heavy vehicles. It also maintains full compatibility with KNORR-BREMSE systems including AE 4179 and I80509.

For workshop technicians performing routine maintenance or system overhauls, this valve features a standard Port 1 of M22x1,5 and four M16x1,5 ports (Ports 21 through 24). Each circuit is calibrated to an opening pressure of 6,5 BAR and a closing pressure of 4,5 BAR to ensure precise pneumatic response during operation.

When troubleshooting air leakage or pressure drops in the braking system, verifying the integrity of the protection valve is critical. This part provides a robust solution for maintaining consistent air distribution across the primary and secondary circuits of the vehicle's pneumatic network.