303.02.0092 Compatible 4-Circuit Protection Valve
303.02.0092
Summary
This 4-circuit protection valve is designed for heavy commercial vehicle brake systems. It features M22x1.5 and M16x1.5 port configurations with specific opening pressures of 7 BAR and closing pressures of 4.5 BAR to ensure precise pneumatic control. Equivalent to OE Knorr-Bremse AE4412.
| EAN Code | 8683457009615 |
|---|
Ready to Order
Compatible OEM Codes
-
KNORR-BREMSE
- AE 4412
Description
This protection valve plays a critical role in the pneumatic brake system of heavy commercial vehicles by managing air distribution across multiple circuits. It is engineered using high-strength components to withstand constant pressure fluctuations and ensure reliable braking performance in demanding environments.
The component is designed to be compatible with Knorr-Bremse systems and other heavy-duty pneumatic architectures. It ensures that air pressure is maintained within safe operational limits across the designated circuits, preventing total system failure in the event of a localized leak.
Installation should be performed by a qualified workshop technician. When replacing, verify that the port sizes match the existing configuration, specifically the M22x1.5 inlet and M16x1.5 outlets. Regular inspection of the opening pressure at 7 BAR and closing pressure at 4.5 BAR is recommended during routine maintenance to ensure optimal system integrity.
Consult your authorized distributor.
The component is designed to be compatible with Knorr-Bremse systems and other heavy-duty pneumatic architectures. It ensures that air pressure is maintained within safe operational limits across the designated circuits, preventing total system failure in the event of a localized leak.
Installation should be performed by a qualified workshop technician. When replacing, verify that the port sizes match the existing configuration, specifically the M22x1.5 inlet and M16x1.5 outlets. Regular inspection of the opening pressure at 7 BAR and closing pressure at 4.5 BAR is recommended during routine maintenance to ensure optimal system integrity.
Consult your authorized distributor.
OE cross-reference
303.02.0092 (4-circuit protection valve) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number AE4412.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 | 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
KNORR-BREMSE
- AE4412
- AE 4412
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| KNORR-BREMSE |
FAQ
What is the function of a 4-circuit protection valve?
It manages air pressure across four independent circuits, ensuring that a leak in one circuit does not compromise the entire braking system.
What are the port specifications for this valve?
This unit features one M22x1.5 port and four M16x1.5 ports, designed for standard heavy commercial pneumatic connections.
What are the pressure thresholds for this component?
The valve operates with an opening pressure of 7 BAR and a closing pressure of 4.5 BAR across its circuits.
Which systems is this valve compatible with?
This component is designed to be compatible with Knorr-Bremse systems used in heavy commercial vehicle braking architectures.
What are the OE reference numbers of this part?
303.02.0092 directly replaces Knorr-Bremse OE number AE4412.