51 54122 8001 MAN NG Compressor Safety Valve

What does a compressor safety valve do?

This compressor safety valve serves as a vital protective component within the pneumatic air brake system. It functions by automatically venting excess air the moment pressure in the compressor exceeds safe limits, thereby protecting the compressor housing and air lines from overpressure damage. Built with high-strength components, this valve ensures reliable operation under demanding conditions.

Compatible MAN NG truck models

This specific component is compatible with MAN NG trucks, including the NG 363, NG 323, NG 353, and NG 313 models. It is engineered to meet the technical requirements of these heavy commercial vehicles, ensuring seamless integration with the existing pneumatic architecture.

Installation and maintenance guidance

For proper installation, technicians should ensure the M26 port connection is clean and free of debris. It is essential to verify that the 17 BAR relief pressure matches the vehicle's specific service manual requirements to maintain correct system regulation. Regular inspections of the sealing gasket and thread integrity are recommended during routine maintenance to prevent air leaks.

System protection and maintenance

Maintaining correct relief pressure thresholds is decisive for both road safety and minimizing long-term maintenance costs. This valve provides a reliable solution for fleet managers and workshop technicians looking to maintain system integrity in heavy commercial vehicle fleets.

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.