303.06.0146 Compatible ALB Load Sensing Valve
303.06.0146
Summary
This ALB Load Sensing Valve is engineered for heavy commercial vehicle brake systems. It features specialized port sizes including M16x1.5 for Port 1 and Port 2, ensuring precise pressure modulation between 1.2 BAR and 6.7 BAR depending on load conditions. Designed for durability in demanding environments. Equivalent to OE WABCO 4757111390.
| EAN Code | 8683457051638 |
|---|
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Compatible OEM Codes
-
WABCO
- 475 711 139 0
Description
What does an ALB Load Sensing Valve do?
This ALB Load Sensing Valve plays a critical role in the pneumatic braking system of heavy commercial vehicles by modulating brake pressure based on the vehicle's load. By sensing the weight of the load, the valve ensures that braking force is distributed effectively, preventing wheel lock-up during deceleration and maintaining stability across varying mass conditions.Technical specifications and compatibility
This component is designed to be compatible with WABCO systems. It features high-strength components and precise engineering to handle fluctuating pressure ranges, specifically managing empty pressure ports at 1.2 BAR and full pressure ports at up to 6.7 BAR. The port configurations include M16x1.5 threading for Port 1 and Port 2, along with an M16x1.50 Port 4 to ensure seamless integration into existing pneumatic lines.Installation and maintenance
For workshop technicians, proper installation involves verifying that all M16x1.5 connections are seated correctly to prevent air leaks. Regular inspection of the valve ports is recommended to ensure that pressure regulation remains accurate according to the vehicle's specific load requirements.Troubleshooting brake modulation
Maintaining a consistent pressure response is vital for the overall integrity of the brake system. If fluctuations in braking performance are observed, inspecting the load sensing mechanism is a recommended troubleshooting step.OE cross-reference
303.06.0146 (ALB Load Sensing Valve) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 4757111390.Technical Specifications
| Empty Pressure Port 41/42 | 1,2 BAR |
|---|---|
| Empty Pressure Port 2 | 2,8 BAR |
| Full Pressure Port 2 | 6,7 BAR |
| Full Pressure Port 41/42 | 4,9 BAR |
| Port 1 | M16x1,5 |
| Port 2 | M16x1,5(x2) |
| Port 4 | M16x1,50 |
Other OEMs
WABCO
- 4757111390
- 475 711 139 0
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| WABCO |
FAQ
What is the function of an ALB Load Sensing Valve?
It regulates brake system pressure based on the actual load of the vehicle, ensuring stable braking performance under different weights.
What are the technical port specifications?
The valve features M16x1.5 threading on Port 1 and Port 2, with a specialized M16x1.50 configuration for Port 4.
What pressure ranges does this valve handle?
The unit manages pressures ranging from an empty pressure port setting of 1.2 BAR to a full pressure port setting of 6.7 BAR.
How can I identify if the valve needs replacement?
Technicians should look for inconsistent braking response or air leaks around the M16x1.5 ports as potential indicators for replacement.
What are the OE reference numbers of this part?
303.06.0146 directly replaces WABCO OE number 4757111390.