51 54122 0007 MAN LION'S COACH D2676 Compressor Valve

What does a compressor safety valve do?

This compressor safety valve serves as a critical component within the pneumatic air brake system, ensuring that pressure levels remain within safe operating limits. By utilizing a calibrated mechanical spring mechanism, it prevents over-pressurization of the compressor housing, protecting the entire pneumatic circuit from potential damage during heavy commercial vehicle operation.

Compatible MAN LION'S COACH models

This specific valve is compatible with MAN LION'S COACH models, including the C 480, 440, L 440, 400, C 440, and L 480 variants utilizing D2676 engines. It is engineered to meet the high-demand requirements of these heavy commercial vehicles.

Installation and maintenance

For proper installation, technicians should ensure the M26 threaded port is clean and free of debris. The component is rated for a maximum pressure of 17 BAR. Regular inspection of the relief mechanism is recommended during routine brake system maintenance to ensure consistent performance.

System protection and troubleshooting

When replacing the valve, verify that all seals are seated correctly to maintain system integrity and prevent air leaks.

OE cross-reference

7700 920 001 (Compressor Safety Valve) is the equivalent of the MAN OE number. This part directly replaces MAN OE number 51541220007.