51 54122 0003 MAN TGS I Compressor Safety Valve

What does a safety valve do?

This compressor safety valve serves as a critical component within the pneumatic braking system, acting as a pressure relief mechanism to prevent over-pressurization. Manufactured with high-strength components, it provides reliable mechanical protection for the air brake compressor and subsequent air lines.

Compatibility and engine fitment

Designed specifically for MAN TGS I heavy commercial vehicles utilizing D2066 engines, this component ensures precise pressure management. It is compatible with various TGS I configurations including the 18.320, 28.400, and 41.440 models. This safety valve is an essential part for maintaining the integrity of the air brake system in heavy-duty applications.

Installation and maintenance

The unit features an M26 threaded port and is rated for a 17 BAR operating pressure. Technicians should ensure all connections are tightened to manufacturer specifications to prevent air leaks. Regular inspection of the valve during scheduled maintenance is recommended to ensure the spring mechanism remains responsive to pressure changes.

Selection guidance

Consult your authorized distributor to confirm exact fitment for your specific engine configuration.

OE cross-reference

7700 920 001 (Compressor Safety Valve) is the equivalent of the MAN OE number. This part directly replaces MAN OE number 51541220003.