303.02.0029 4-Circuit Protection Valve — Renault Trucks
303.02.0029
Summary
High-strength 4-circuit protection valve designed for heavy commercial vehicle pneumatic brake systems. Featuring M22x1,5 port 1 and 7 BAR opening pressure for circuits 21, 22, and 23, this component ensures reliable air distribution for Iveco and Renault Trucks. Check the compatibility list. Equivalent to OE Iveco 5006143813, Knorr-Bremse AE4605 and Renault Trucks 5010422971.
| EAN Code | 8699031096261 |
|---|
Ready to Order
Compatible OEM Codes
-
KNORR-BREMSE
- K099797N00
- K011255
- II36650R
- II36650
- AE 4605
-
RENAULT TRUCKS
- 5010422971
-
IVECO
- 5006143813
Description
What does a 4-circuit protection valve do?
This 4-circuit protection valve serves as a critical safety component within the pneumatic brake system of heavy commercial vehicles. It functions by receiving pressurized air and distributing it across four independent circuits, ensuring that a pressure loss in one area does not compromise the entire braking capability.Compatible vehicles and systems
This component is compatible with Iveco and Renault Trucks vehicles. It is specifically engineered to work within Knorr-Bremse systems to maintain optimal pneumatic balance during operation.Technical specifications and installation
Technicians should note the specific technical parameters for installation: Port 1 features an M22x1,5 thread, while Ports 21, 22, 23, and 24 utilize Ø9 mm connections. The device operates at a maximum pressure of 20 BAR, with specific opening pressures of 7 BAR for circuits 21 through 23 and 7.3 BAR for circuit 24.Maintenance and troubleshooting
Regular inspection of the valve is recommended to ensure the closing pressure remains consistent at approximately 4.5 BAR across all circuits. Maintaining these pressure thresholds is vital for the reliable performance of the vehicle's air brake system.OE cross-reference
303.02.0029 (4-circuit protection valve) is the equivalent of the Iveco, Knorr-Bremse and Renault Trucks OE numbers. This part directly replaces Iveco OE number 5006143813. It also replaces Knorr-Bremse OE numbers AE4605, II36650, II36650R, K011255, K099797N00 and Renault Trucks OE number 5010422971.Technical Specifications
| Port 1 | M22x1,5 |
|---|---|
| Port 21 | Ø9 mm |
| Port 22 | Ø9 mm |
| Port 23 | Ø9 mm |
| Port 24 | Ø9 mm |
| Operating Pressure | 12,5 BAR |
| Opening Pressure 21 | 7 BAR |
| Opening Pressure 22 | 7 BAR |
| Opening Pressure 23 | 7 BAR |
| Opening Pressure 24 | 7,3 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 |
| Pressure | MAX 20 BAR |
Other OEMs
IVECO
- 5006143813
KNORR-BREMSE
- AE4605
- K099797N00
- K011255
- II36650R
- II36650
- AE 4605
RENAULT TRUCKS
- 5010422971
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| IVECO | |||
| KNORR-BREMSE | |||
| RENAULT TRUCKS |
FAQ
What is the function of a 4-circuit protection valve?
It distributes pressurized air from the compressor into four separate circuits while isolating any circuit experiencing a pressure loss to maintain overall braking safety.
What are the connection specifications for this valve?
The unit features an M22x1,5 Port 1 and Ø9 mm connections for Ports 21, 22, 23, and 24.
Which vehicle makes is this part compatible with?
This component is designed for use in Iveco and Renault Trucks heavy commercial vehicles.
How do I know if the valve needs replacement?
Technicians should check if the opening pressures (7 BAR to 7.3 BAR) or closing pressures (4.5 BAR) deviate from standard operating requirements.
What are the OE reference numbers of this part?
303.02.0029 directly replaces Iveco OE number 5006143813. It also replaces Knorr-Bremse OE numbers AE4605, II36650, II36650R, K011255, K099797N00 and Renault Trucks OE number 5010422971.