303.02.0116 Compatible 4-Circuit Protection Valve
303.02.0116
Summary
This 4-circuit protection valve is designed for heavy commercial vehicle brake systems. It features M22x1.5 Voss ports and precise opening pressures, including 6.7 BAR for port 21, ensuring reliable pneumatic circuit isolation. Compatible with WABCO systems. Equivalent to OE WABCO 9347144040.
| EAN Code | 8683457044272 |
|---|
Ready to Order
Compatible OEM Codes
-
WABCO
- 934 714 404 0
Description
What does a 4-circuit protection valve do?
This protection valve plays a critical role in the pneumatic brake system by isolating different circuits to maintain braking capability in case of a leak. Constructed from high-strength components, it ensures the stability of air pressure across the vehicle's braking network.System compatibility and fitment
The unit is compatible with WABCO systems and serves as a reliable alternative for heavy commercial vehicle applications. It features standardized M22x1.5 Voss port connections for secure integration into existing pneumatic lines.Installation and technical specifications
Technicians should verify that the opening pressures, such as 6.7 BAR for port 21 and 5.8 BAR for ports 23 and 24, match the specific requirements of the vehicle's braking configuration during installation. Regular inspection of the M22x1.5 Voss threads is recommended to ensure airtight seals.Maintenance and safety importance
Proper selection of this valve prevents total system pressure loss by compartmentalizing air circuits, providing essential safety during heavy-duty operation.OE cross-reference
303.02.0116 (4-circuit protection valve) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 9347144040.Technical Specifications
| Opening Pressure 21 | 6,7 BAR |
|---|---|
| Opening Pressure 22 | 6,6 BAR |
| Opening Pressure 23 | 5,8 BAR |
| Opening Pressure 24 | 5,8 BAR |
| Closing Pressure 21 | 5,2 BAR |
| Closing Pressure 22 | 5,1 BAR |
| Closing Pressure 23 | 4,8 BAR |
| Closing Pressure 24 | 4,8 BAR |
| Port 1 | M22x1,5 Voss |
| Port 22 | M22x1,5 Voss |
| Port 23 | M22x1,5 Voss |
| Port 24 | M22x1,5 Voss |
| Port 21 | M22x1,5 Voss |
Other OEMs
WABCO
- 9347144040
- 934 714 404 0
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| WABCO |
FAQ
What is the function of this 4-circuit protection valve?
It isolates individual air brake circuits to ensure that a leak in one section does not deplete the entire pneumatic system, maintaining braking safety.
What are the connection specifications for this part?
The valve is equipped with M22x1.5 Voss ports (Ports 21, 22, 23, and 24) to ensure standard industrial compatibility.
Which systems is this component compatible with?
This component is designed to be compatible with WABCO systems used in heavy commercial vehicle braking networks.
How do I identify if the pressure settings are correct?
Check the opening pressures: port 21 operates at 6.7 BAR, port 22 at 6.6 BAR, and ports 23 and 24 at 5.8 BAR.
What are the OE reference numbers of this part?
303.02.0116 directly replaces WABCO OE number 9347144040.