51 54122 8001 MAN TGS I Compressor Safety Valve

What does a compressor safety valve do?

This compressor safety valve serves as a critical pressure protection component within the pneumatic air brake system. It operates via a mechanical opening mechanism to prevent overpressure conditions, ensuring the integrity of the compressor and downstream air lines. Built with high-strength components, it provides reliable relief under intensive heavy commercial vehicle service conditions.

Compatibility with MAN TGS I engines

This specific valve is engineered for MAN TGS I trucks, specifically compatible with D2066 engines. It is designed to maintain system safety across various models including the 28.400, 33.390, and 41.440 series. Consult your authorized distributor for exact fitment verification.

Installation and technical specifications

The unit features an M26 port connection and is rated for 17 BAR operating pressure. During installation, technicians should ensure the threaded connection is seated correctly against the compressor housing to prevent air leaks. Regular inspection of the relief threshold is recommended during routine pneumatic system maintenance.

System maintenance and protection

Maintaining correct pressure relief is essential for the longevity of the entire braking system. If pressure levels exceed standard operating parameters, this valve acts as the primary defense against component failure in heavy commercial vehicles.

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.