303.02.0028 4-circuit protection valve
303.02.0028
Summary
This high-strength 4-circuit protection valve is engineered for heavy commercial vehicle brake systems. Featuring Port 1: M22x1,5 and Ports 21-24: M16x1,5, it operates at 13 BAR with specific opening pressures (7,5 BAR to 8 BAR) to ensure reliable pneumatic control. Compatible with IVECO and KNORR-BREMSE systems.
| EAN Code | 8699031092874 |
|---|
Ready to Order
Compatible OEM Codes
- KNORR-BREMSE K019909N00 AE 4646
- IVECO 98400429
Description
This advanced 4-circuit protection valve serves as a critical component within the pneumatic brake system of heavy commercial vehicles. It is designed to manage air distribution across multiple circuits, ensuring that pressure levels remain stable and providing essential safety through controlled opening and closing pressures. The component is manufactured using high-strength components to withstand rigorous operating conditions.
The 303.02.0028 is the OE equivalent of the IVECO 98400429, KNORR-BREMSE AE4646, and KNORR-BREMSE K019909N00 used in heavy-duty vehicle systems. This part is specifically engineered for compatibility with IVECO and KNORR-BREMSE hardware, ensuring precise pressure regulation across ports 21, 22, 23, and 24.
Maintenance technicians should verify the port thread sizes—M22x1,5 for the primary inlet and M16x1,5 for the secondary ports—during installation to ensure a secure pneumatic seal. Regular inspections of the operating pressure against the maximum threshold of 20 BAR are recommended to maintain optimal braking performance and system integrity.
For optimal performance, always check the compatibility list and ensure the component matches the specific technical requirements of your vehicle's brake architecture.
The 303.02.0028 is the OE equivalent of the IVECO 98400429, KNORR-BREMSE AE4646, and KNORR-BREMSE K019909N00 used in heavy-duty vehicle systems. This part is specifically engineered for compatibility with IVECO and KNORR-BREMSE hardware, ensuring precise pressure regulation across ports 21, 22, 23, and 24.
Maintenance technicians should verify the port thread sizes—M22x1,5 for the primary inlet and M16x1,5 for the secondary ports—during installation to ensure a secure pneumatic seal. Regular inspections of the operating pressure against the maximum threshold of 20 BAR are recommended to maintain optimal braking performance and system integrity.
For optimal performance, always check the compatibility list and ensure the component matches the specific technical requirements of your vehicle's brake architecture.
Technical Specifications
| Port 1 | M22x1,5 |
|---|---|
| Port 21 | M16x1,5 |
| Port 22 | M16x1,5 |
| Port 23 | M16x1,5 |
| Port 24 | M16x1,5 |
| Operating Pressure | 13 BAR |
| Opening Pressure 21 | 7,5 BAR |
| Opening Pressure 22 | 7,5 BAR |
| Opening Pressure 23 | 8 BAR |
| Opening Pressure 24 | 8 BAR |
| Closing Pressure 21 | 6,5 BAR |
| Closing Pressure 22 | 6,5 BAR |
| Closing Pressure 23 | 6,5 BAR |
| Closing Pressure 24 | 6,5 BAR |
| Pressure | MAX 20 BAR |
Other OEMs
IVECO
- 98400429
KNORR-BREMSE
- AE4646
- K019909N00
- AE 4646
Related Products
Repair Kits
Vehicles Used
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| IVECO | |||
| KNORR-BREMSE |
FAQ
What are the primary applications for this 4-circuit protection valve?
This component is used in the pneumatic brake systems of heavy commercial vehicles to regulate air distribution across multiple circuits.
Which OEM reference numbers are compatible with this part?
Compatible OEM references include IVECO 98400429, KNORR-BREMSE AE4646, and KNORR-BREMSE K019909N00.
What are the technical port specifications for this valve?
The valve features one M22x1,5 port (Port 1) and four M16x1,5 ports (Ports 21, 22, 23, and 24) for pneumatic connections.
Can this part be used in heavy commercial vehicles?
Yes, it is specifically designed for heavy commercial vehicle brake systems, including those requiring precise pressure regulation.
How do I identify if a replacement is needed?
Technicians should check for deviations in opening or closing pressures or any loss of pneumatic stability within the braking circuits.