303.02.0084 KNORR-BREMSE equivalent 4-circuit protection valve
303.02.0084
●Port 1: M22x1,5 ●Port 21: M16x1,5 ●Port 22: M16x1,5 ●Port 23: M16x1,5 ●Port 24: M16x1,5 ●Opening Pressure 21: 6,5 BAR ●Opening Pressure 22: 6,5 BAR ●Opening Pressure 23: 6 BAR ●Opening Pressure 24: 6 BAR ●Closing Pressure 21: 4,8 BAR ●Closing Pressure 22: 4,8 BAR ●Closing Pressure 23: 4,8 BAR ●Closing Pressure 24: 4,8 BAR
| EAN Code | 8683457009431 |
|---|
Description
The heavy-duty grade component functions as a critical pressure regulator within the pneumatic brake system of heavy commercial vehicles. This 4-circuit protection valve ensures that pneumatic circuits are isolated during pressure drops, maintaining system integrity and safety through precise opening and closing thresholds.
303.02.0084 is the OE-equivalent of the KNORR-BREMSE AE 4405 4-circuit protection valve used in compatible heavy commercial vehicle braking systems. The component features a specialized port configuration including Port 1 (M22x1,5) and four secondary ports (M16x1,5) to ensure seamless integration with existing pneumatic lines.
For workshop technicians, this part offers reliable performance with specific pressure settings: Opening Pressures for ports 21 and 22 are set at 6,5 BAR and the ports for 23 and 24 at 6 BAR, while all closing pressures are calibrated at 4,8 BAR. Proper installation and regular maintenance of the pneumatic circuit are essential to ensure the long-term stability of the braking system.
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 | 6,5 BAR |
| Opening Pressure 22 | 6,5 BAR |
| Opening Pressure 23 | 6 BAR |
| Opening Pressure 24 | 6 BAR |
| Closing Pressure 21 | 4,8 BAR |
| Closing Pressure 22 | 4,8 BAR |
| Closing Pressure 23 | 4,8 BAR |
| Closing Pressure 24 | 4,8 BAR |
Other OEMs
KNORR-BREMSE
- AE 4405
- AE4405
Related Products
Repair Kits
Vehicles Used
| Brand | Model | Engine |
|---|---|---|
| KNORR-BREMSE |