303.02.0052 KNORR-BREMSE 4-circuit protection valve
303.02.0052
Summary
This high-strength 4-circuit protection valve features a Port 1 of M22x1,5 and four M16x1,5 ports (21, 22, 23, 24). It operates at a maximum pressure of 20 BAR with an opening pressure of 6,5 BAR and a closing pressure of 4,5 BAR for each circuit. It is an OE equivalent for KNORR-BREMSE systems.
| EAN Code | 8683457005310 |
|---|
Ready to Order
Compatible OEM Codes
- KNORR-BREMSE K019911 AE 4648
Description
The pneumatic brake system relies on precise pressure regulation to ensure safety and stability during heavy-duty operations. This 4-circuit protection valve is engineered to manage airflow across multiple circuits, providing critical redundancy and protection within the brake system architecture.
The 303.02.0052 is the OE equivalent of the KNORR-BREMSE AE4648 and K019911 used in professional braking systems. This component is designed specifically for compatibility with KNORR-BREMSE hardware, ensuring reliable performance in high-pressure environments. The device features a primary port of M22x1,5 and four auxiliary ports of M16x1,5 to maintain system integrity.
Installation should be performed by a qualified workshop technician to ensure all port connections are secure and the opening/closing pressures match the vehicle's technical specifications. Regular inspections of the pneumatic lines and port seals are recommended to maintain optimal braking performance and prevent pressure drops within the circuits.
With an operating pressure of up to 12 BAR and a maximum threshold of 20 BAR, this component provides stable pneumatic control for heavy commercial vehicle applications.
The 303.02.0052 is the OE equivalent of the KNORR-BREMSE AE4648 and K019911 used in professional braking systems. This component is designed specifically for compatibility with KNORR-BREMSE hardware, ensuring reliable performance in high-pressure environments. The device features a primary port of M22x1,5 and four auxiliary ports of M16x1,5 to maintain system integrity.
Installation should be performed by a qualified workshop technician to ensure all port connections are secure and the opening/closing pressures match the vehicle's technical specifications. Regular inspections of the pneumatic lines and port seals are recommended to maintain optimal braking performance and prevent pressure drops within the circuits.
With an operating pressure of up to 12 BAR and a maximum threshold of 20 BAR, this component provides stable pneumatic control for heavy commercial vehicle applications.
Technical Specifications
| Port 1 | M22x1,5 |
|---|---|
| Port 21 | M16x1,5 |
| Port 22 | M16x1,5 |
| Port 23 | M16x1,5 |
| Port 24 | M16x1,5 |
| Operating Pressure | 12 BAR |
| Opening Pressure 21 | 6,5 BAR |
| Opening Pressure 22 | 6,5 BAR |
| Opening Pressure 23 | 6,5 BAR |
| Opening Pressure 24 | 6,5 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
KNORR-BREMSE
- AE4648
- K019911
- AE 4648
Related Products
Repair Kits
Vehicles Used
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| KNORR-BREMSE |
FAQ
What are the technical specifications for the ports?
The valve features one M22x1,5 port (Port 1) and four M16x1,5 ports (Ports 21, 22, 23, and 24) for secure pneumatic connections.
Which OEM references are compatible with this part?
This product is compatible with KNORR-BREMSE references AE4648 and K019911.
What is the operating pressure range?
The valve is designed for an operating pressure of 12 BAR, with a maximum pressure capacity of up to 20 BAR.
What are the opening and closing pressures?
Each of the four circuits has an opening pressure of 6,5 BAR and a closing pressure of 4,5 BAR.
Can this part be used in heavy commercial vehicles?
Yes, this component is designed for heavy commercial vehicle brake systems requiring reliable multi-circuit pneumatic protection.