303.02.0069 KNORR-BREMSE 4-circuit protection valve
303.02.0069
Summary
●Port 1: M22x1,5 ●Port 11: M16x1,5 ●Port 12: M16x1,5 ●Port 21: M16x1,5 ●Port 22: M16x1,5 ●Port 23: M16x1,5 ●Port 24: M16x1,5 ●Opening Pressure 21: 7,6 BAR ●Opening Pressure 22: 7,6 BAR ●Opening Pressure 23: 6,7 BAR ●Opening Pressure 24: 6,7 BAR ●Closing Pressure 21: 4,3 BAR ●Closing Pressure 22: 4,3 BAR ●Closing Pressure 23: 5,5 BAR ●Closing Pressure 24: 5,5 BAR
| EAN Code | 8683457009288 |
|---|
Ready to Order
Compatible OEM Codes
- KNORR-BREMSE AE 4421
Description
This high-strength component is engineered to provide precise pneumatic control within the braking system. Designed for heavy commercial vehicle applications, it ensures reliable pressure distribution across multiple circuits to maintain operational safety under varying load conditions.
The product serves as an OE equivalent for the KNORR-BREMSE AE4421 part. It features specific port configurations including a primary M22x1,5 port and several M16x1,5 ports to ensure exact fitment within the pneumatic architecture. The 303.02.0069 is the OE equivalent of the KNORR-BREMSE 4-circuit protection valve used in professional heavy-duty systems.
Technical specifications include a maximum pressure of 20 BAR with precise opening and closing thresholds for circuits 21, 22, 23, and 24 to ensure system integrity. Maintenance technicians should verify all port connections and pressure settings during installation to ensure optimal performance of the braking system.
The component is designed for durability in demanding environments, meeting the requirements of modern heavy commercial vehicle maintenance protocols. Professionals can rely on its precise pressure regulation to support long-term system stability.
The product serves as an OE equivalent for the KNORR-BREMSE AE4421 part. It features specific port configurations including a primary M22x1,5 port and several M16x1,5 ports to ensure exact fitment within the pneumatic architecture. The 303.02.0069 is the OE equivalent of the KNORR-BREMSE 4-circuit protection valve used in professional heavy-duty systems.
Technical specifications include a maximum pressure of 20 BAR with precise opening and closing thresholds for circuits 21, 22, 23, and 24 to ensure system integrity. Maintenance technicians should verify all port connections and pressure settings during installation to ensure optimal performance of the braking system.
The component is designed for durability in demanding environments, meeting the requirements of modern heavy commercial vehicle maintenance protocols. Professionals can rely on its precise pressure regulation to support long-term system stability.
Technical Specifications
| Port 1 | M22x1,5 |
|---|---|
| Port 12 | M16x1,5 |
| Port 21 | M16x1,5 |
| Port 22 | M16x1,5 |
| Port 11 | M16x1,5 |
| Port 23 | M16x1,5 |
| Port 24 | M16x1,5 |
| Pressure | MAX 20 BAR |
| Opening Pressure 21 | 7,6 BAR |
| Opening Pressure 22 | 7,6 BAR |
| Opening Pressure 23 | 6,7 BAR |
| Opening Pressure 24 | 6,7 BAR |
| Closing Pressure 21 | 4,3 BAR |
| Closing Pressure 22 | 4,3 BAR |
| Closing Pressure 23 | 5,5 BAR |
| Closing Pressure 24 | 5,5 BAR |
Other OEMs
KNORR-BREMSE
- AE4421
- AE 4421
Related Products
Repair Kits
Vehicles Used
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| KNORR-BREMSE |
FAQ
What are the compatible OEM references for this part?
This product is compatible with the following OE reference: AE4421.
What is the main function of this component?
It functions as a pneumatic safety device that manages and protects different circuits within a heavy commercial vehicle's braking system.
Which port sizes are used in this protection valve?
The unit features one M22x1,5 port (Port 1) and several M16x1,5 ports (Ports 11, 12, 21, 22, 23, and 24).
What is the maximum operating pressure?
The component is designed to operate with a maximum pressure of up to 20 BAR.
How do I ensure correct installation?
Technicians should check that all port types (M22x1,5 and M16x1,5) match the vehicle's existing lines and verify the specific opening/closing pressures for each circuit.