303.02.0013 4-circuit protection valve | Mercedes-Benz
303.02.0013
This high-strength 4-circuit protection valve is designed for heavy commercial vehicle brake systems. It features specific port dimensions: Port 1 (M22x1,5) and Ports 21, 22, 23, 24 (M16x1,5). It operates with an opening pressure of 7 BAR and a closing pressure of 4,5 BAR across all circuits to ensure reliable pneumatic regulation.
| EAN Code | 8699031096247 |
|---|
Description
The heavy-duty 4-circuit protection valve serves as a critical component in the pneumatic brake system, ensuring stable pressure distribution across multiple circuits. Designed for reliability, this part manages air flow through specialized ports to maintain consistent braking performance under demanding driving conditions. It is engineered with high-strength components to withstand constant pressure fluctuations in heavy commercial vehicle applications.
303.02.0013 is the OE-equivalent 4-circuit protection valve used in Mercedes-Benz (001 431 87 06, 001 431 89 06, 001 431 93 06, 002 431 01 06, 002 431 40 06, 002 431 91 06), IVECO (042085657, 042085658, 42078368), DAF (670766), and Knorr-Bremse (AE 4170, I85510) systems. This part ensures seamless integration within the braking architecture of these heavy commercial vehicles.
Workshop technicians should verify the port threading compatibility before installation. The unit features one M22x1,5 port and four M16x1,5 ports. For optimal performance and safety, ensure all connections are secure and that the opening/closing pressure thresholds match the vehicle's technical requirements. Regular inspection of the pneumatic lines connected to this valve is recommended during routine maintenance to prevent system leaks.
This component is essential for maintaining the integrity of the air brake system's multi-circuit architecture. By providing precise regulation at the specified bar levels, it prevents single-circuit failures from affecting the entire vehicle braking performance.
Technical Specifications
| Port 21 | M16x1,5 |
|---|---|
| Port 1 | M22x1,5 |
| 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
DAF
- 670766
IVECO
- 042085657
- 042085658
- 42078368
KNORR-BREMSE
- AE 4170
- I85510
- AE4170
MERCEDES BENZ
- 001 431 87 06
- 001 431 89 06
- 001 431 93 06
- 002 431 01 06
- 002 431 40 06
- 002 431 91 06
- 001 431 8706
- 001 431 8906
- 001 431 9306
- 001-431-87-06
- 001-431-89-06
- 001-431-93-06
- 001.431.87.06
- 001.431.8706
- 001.431.89.06
- 001.431.8906
- 001.431.93.06
- 001.431.9306
- 0014318706
- 0014318906
- 0014319306
- 002 431 0106
- 002 431 4006
- 002 431 9106
- 002-431-01-06
- 002-431-40-06
- 002-431-91-06
- 002.431.01.06
- 002.431.0106
- 002.431.40.06
- 002.431.4006
- 002.431.91.06
- 002.431.9106
- 0024310106
- 0024314006
- 0024319106
- A001 431 87 06
- A001 431 89 06
- A001 431 93 06
- A0014318706
- A0014318906
- A0014319306
- A002 431 01 06
- A002 431 40 06
- A002 431 91 06
- A0024310106
- A0024314006
- A0024319106
Related Products
Repair Kits
Vehicles Used
| Brand | Model | Engine |
|---|---|---|
| DAF | ||
| IVECO | ||
| KNORR-BREMSE | ||
| MERCEDES BENZ |