51 54122 8001 Compressor Safety Valve compatible with MAN

What does a compressor safety valve do?

This compressor safety valve serves as a vital component within the pneumatic braking system, regulating air pressure to prevent over-pressurization. By maintaining the pressure generated by the compressor within safe limits, it protects both the compressor unit and the entire brake system from potential damage. It is manufactured with high-strength components to withstand demanding operating conditions.

Vehicle and model compatibility

This part is specifically engineered for MAN SÜ compressors, including models SÜ 353, SÜ 273, SÜ 313, SÜ 320, and SÜ 360. It is also compatible with other heavy commercial vehicle applications requiring precise pressure relief. This ensures reliable performance across various MAN engine and compressor configurations.

Installation and technical specifications

The valve features an M26 port size and is rated for a 17 BAR operating pressure. During installation, technicians should ensure the threaded connection to the compressor housing is secure and that all seals are correctly seated to prevent leaks. Regular inspection of the relief mechanism is recommended to ensure it meets factory calibration standards.

Troubleshooting and maintenance

Monitoring the discharge frequency of the valve can help in identifying potential system issues or compressor malfunctions before they lead to service interruptions.

OE cross-reference

7700 920 001 (Compressor Safety Valve) is the equivalent of the MAN OE number. This part directly replaces MAN OE number 51541228001.