303.02.0018 KNORR-BREMSE Multi-circuit Protection Valve

The multi-circuit protection valve is a critical component designed to manage and isolate pneumatic circuits within the brake system. This heavy-duty grade part ensures that pressure fluctuations in one circuit do not compromise the functionality of other critical segments, maintaining overall vehicle safety and braking stability. It is engineered to withstand high-pressure fluctuations and harsh operational environments.

303.02.0018 is the OE-equivalent of the KNORR-BREMSE AE 4505 and II31163N multi-circuit protection valves used in heavy commercial vehicle brake systems. This component is fully compatible with KNORR-BREMSE systems, ensuring precise pressure management across multiple ports. The technical specifications include multiple M22x1,5 VOSS ports to allow for seamless integration into existing pneumatic architectures.

For workshop technicians performing maintenance or repairs, this valve offers precise pressure thresholds: an opening pressure of 9 BAR for ports 21/22 and 7,5 BAR for ports 22/24, with closing pressures of 4,5 BAR and 5,5 BAR respectively. Proper installation and regular checks of the connection ports are recommended to ensure optimal performance within the air brake system and to prevent any potential pressure loss during operation.