303.02.0026 Mercedes-Benz Compatible Multi-circuit Protection Valve
303.02.0026
Summary
This multi-circuit protection valve is designed for heavy commercial vehicle brake systems. It features M22x1.5 VOSS ports, an opening pressure of 9 BAR for ports 21/22, and a 7.5 BAR opening pressure for ports 23/24, ensuring precise pneumatic regulation. Equivalent to OE Knorr-Bremse AE4802 and Mercedes-Benz 0024319606.
| EAN Code | 8699031080871 |
|---|
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Compatible OEM Codes
-
KNORR-BREMSE
- K009830
- AE 4802
-
MERCEDES BENZ
- 002 431 96 06
Description
What does a multi-circuit protection valve do?
This multi-circuit protection valve serves as a critical component within the pneumatic brake system, managing air pressure distribution across multiple circuits to ensure safety. It is engineered with high-strength components to withstand the rigorous demands of heavy commercial vehicle operations, providing reliable pressure regulation during braking cycles.Vehicle and system compatibility
The component is compatible with Mercedes-Benz vehicles and meets the functional requirements of heavy-duty braking systems. It utilizes specific port configurations, including M16x1.5 and M22x1.5 VOSS connections, to ensure secure integration within the existing pneumatic architecture.Installation and technical maintenance
For professional installation, technicians should verify the opening pressures of 9 BAR and 7.5 BAR against the vehicle's technical requirements. Maintenance should focus on ensuring all M12x1.5 and M22x1.5 VOSS ports remain free of contaminants to prevent pressure fluctuations or sensor inaccuracies in the 5V circuit.System reliability and selection
Proper selection of this valve ensures consistent pressure maintenance across various braking circuits, preventing total system failure in the event of a single circuit leak.OE cross-reference
303.02.0026 (Multi-circuit Protection Valve) is the equivalent of the Knorr-Bremse and Mercedes-Benz OE numbers. This part directly replaces Knorr-Bremse OE numbers AE4802, K009830. It also replaces Mercedes-Benz OE number 0024319606.Technical Specifications
| Port 1 | M16x1,5 |
|---|---|
| Port 21 | M22x1,5 VOSS |
| Port 22 | M22x1,5 VOSS |
| Port 23 | M22x1,5 VOSS |
| Port 24 | M22x1,5 VOSS |
| Port 25 | M22x1,5 VOSS |
| Port 26 | M22x1,5 VOSS |
| Opening Pressure 21/22 | 9 BAR |
| Opening Pressure 23/24 | 7,5 BAR |
| Closing Pressure 21/22 | 6 BAR |
| Closing Pressure 23/24 | 6 BAR |
| Pressure sensor | 5 V |
| Port 27 | M12x1,5 |
| Port 28 | M12x1,5 |
Other OEMs
KNORR-BREMSE
- AE4802
- K009830
- AE 4802
MERCEDES BENZ
- A0024319606
- 002 431 96 06
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| KNORR-BREMSE | |||
| MERCEDES BENZ |
FAQ
What is the function of this multi-circuit protection valve?
It manages and protects multiple air brake circuits by regulating pressure and preventing a single leak from compromising the entire braking system.
What are the key technical specifications for this part?
The unit features M22x1.5 VOSS ports with an opening pressure of 9 BAR for ports 21/22 and 7.5 BAR for ports 23/24, alongside a 5V pressure sensor.
Is this component compatible with Mercedes-Benz trucks?
Yes, this multi-circuit protection valve is designed to be compatible with Mercedes-Benz heavy commercial vehicle systems.
What should technicians check during installation?
Ensure all M16x1.5 and M22x1.5 VOSS port connections are properly seated and that the 5V sensor connection is secure to maintain accurate readings.
What are the OE reference numbers of this part?
303.02.0026 directly replaces Knorr-Bremse OE numbers AE4802, K009830. It also replaces Mercedes-Benz OE number 0024319606.