I99812N56 Safety Valve for Knorr-Bremse Systems

What does a safety valve do?

This compressor safety valve serves as a critical protection component within the air brake system. By automatically venting excess air when pressure exceeds safe limits, it prevents structural damage to the compressor housing, air lines, and reservoirs. Built with high-strength components, this valve ensures reliable operation under heavy-duty conditions.

System compatibility

This component is compatible with Knorr-Bremse systems and is designed to meet the rigorous demands of heavy commercial vehicle service. It functions as a vital safeguard for the pneumatic circuit, ensuring that pressure levels remain within the calibrated limits required for safe braking operations.

Installation and maintenance

Installation should be performed by a workshop technician to ensure the M26 port is correctly seated and the 17 BAR rating is maintained. Regular inspection of the valve housing and sealing surfaces is recommended during routine maintenance to prevent leaks or premature failure due to debris or environmental exposure.

System protection

Choosing a high-quality relief valve is essential for maintaining system integrity and preventing catastrophic component failure in pneumatic brake circuits.

OE cross-reference

7700 920 001 (Compressor Safety Valve) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number I99812N56.