303.02.0080 Compatible 4-Circuit Protection Valve
303.02.0080
Summary
This 4-circuit protection valve ensures pneumatic stability within the braking system. It features M22x1.5 and M16x1.5 ports, with opening pressures of 7 BAR and closing pressures of 4.5 BAR across all four circuits. Compatible with Knorr-Bremse systems. Equivalent to OE Knorr-Bremse AE4186.
| EAN Code | 8683457009394 |
|---|
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Compatible OEM Codes
-
KNORR-BREMSE
- AE 4186
Description
This 4-circuit protection valve plays a critical role in the pneumatic brake system of heavy commercial vehicles by managing air pressure distribution. It is designed to isolate specific circuits to prevent total air loss in the event of a leak, ensuring the safety and reliability of the braking performance under heavy loads.
The component is compatible with Knorr-Bremse systems and is engineered to withstand high-pressure fluctuations. It features specific port configurations including one M22x1.5 inlet and four M16x1.5 outlets, ensuring precise air routing throughout the vehicle's pneumatic architecture.
For proper installation, technicians should verify that the opening pressure of 7 BAR and closing pressure of 4.5 BAR align with the specific vehicle requirements. Regular inspection of the port connections and pressure thresholds is recommended during routine maintenance to ensure optimal system integrity.
Consult your authorized distributor.
The component is compatible with Knorr-Bremse systems and is engineered to withstand high-pressure fluctuations. It features specific port configurations including one M22x1.5 inlet and four M16x1.5 outlets, ensuring precise air routing throughout the vehicle's pneumatic architecture.
For proper installation, technicians should verify that the opening pressure of 7 BAR and closing pressure of 4.5 BAR align with the specific vehicle requirements. Regular inspection of the port connections and pressure thresholds is recommended during routine maintenance to ensure optimal system integrity.
Consult your authorized distributor.
OE cross-reference
303.02.0080 (4-circuit protection valve) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number AE4186.Technical Specifications
| Port 1 | M22x1,5 |
|---|---|
| Port 21 | M16x1,5 |
| Port 22 | M16x1,5 |
| Port 23 | M16x1,5 |
| Port 24 | M16x1,5 |
| Opening Pressure 21 | 7 BAR |
| Opening Pressure 22 | 7 BAR |
| Opening Pressure 23 | 7 BAR |
| Opening Pressure 24 | 7 BAR |
| Closing Pressure 21 | 4,5 BAR |
| Closing Pressure 22 | 4,5 BAR |
| Closing Pressure 23 | 4,5 BAR |
| Closing Pressure 24 | 4,5 BAR |
Other OEMs
KNORR-BREMSE
- AE4186
- AE 4186
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| KNORR-BREMSE |
FAQ
What is the function of a 4-circuit protection valve?
It protects the braking system by isolating air circuits if a leak occurs, preventing a complete loss of air pressure in the remaining circuits.
What are the port sizes for this component?
This valve is equipped with one M22x1.5 port and four M16x1.5 ports for secure pneumatic connections.
What are the pressure settings for this valve?
The device operates with an opening pressure of 7 BAR and a closing pressure of 4.5 BAR across all four circuits.
Is this compatible with Knorr-Bremse systems?
Yes, this protection valve is designed to be compatible with Knorr-Bremse systems used in heavy commercial vehicles.
What are the OE reference numbers of this part?
303.02.0080 directly replaces Knorr-Bremse OE number AE4186.