303.06.0050 Volvo Compatible ALB Load Sensing Valve

What does an ALB load sensing valve do?

This ALB load sensing valve plays a critical role in the pneumatic braking system by automatically adjusting brake pressure based on the vehicle's current load. By responding to axle weight changes, it ensures stable braking performance and prevents wheel lock-up under varying conditions. Built with high-strength components, it maintains consistent pressure regulation for heavy-duty commercial applications.

Vehicle and engine compatibility

The valve is specifically designed for compatibility with various Volvo models, including the F10, F12, FL10, FL12, N10, N12, NL10, NL12, B10B, B10M, and B12 series. It is also fitted to DAF and Scania trucks. This component works seamlessly within the braking architecture of these heavy commercial vehicles to maintain optimal safety standards.

Installation and technical specifications

For proper installation, technicians should verify that port connections match the required specifications: Port 1 uses M22x1.5, Port 2 features M16x1.5(x2), and Port 4 is M16x1.50. Ensure all seals are properly seated to maintain the integrity of the pressure regulation between the 0.5 BAR empty pressure and 6 BAR full pressure levels.

Maintenance and inspection

Regular inspection of the load-sensing mechanism is recommended during routine brake system maintenance to prevent uneven braking force or pneumatic leaks.

OE cross-reference

303.06.0050 (ALB Load Sensing Valve) is the equivalent of the DAF, Scania, Volvo and WABCO OE numbers. This part directly replaces DAF OE number 1506225. It also replaces Scania OE number 1935091, Volvo OE number 1628954 and WABCO OE number 4757110740.