51 54122 8001 MAN SL II Compatible Safety Valve

What does a compressor safety valve do?

This compressor safety valve serves as a critical component within the pneumatic braking system, providing essential pressure regulation. It operates by utilizing a calibrated mechanical mechanism to vent excess air, protecting the compressor and interconnected lines from over-pressurization during heavy-duty operation.

Compatible vehicles and engines

Specifically designed for MAN SL II models including the SL 353 and SL 363, this component ensures system integrity under high-pressure conditions. It is compatible with MAN OE standards, providing a reliable solution for workshop technicians maintaining heavy commercial vehicle fleets.

Installation and maintenance

Installation requires careful attention to the M26 port threading to ensure a secure, leak-free connection to the compressor housing. Technicians should verify that the 17 BAR relief threshold aligns with the specific requirements of the vehicle's pneumatic circuit during routine maintenance or system overhauls.

Troubleshooting and selection

Regular inspection of the valve is recommended to prevent pressure buildup issues. Selecting high-strength components ensures long-term durability in demanding service environments.

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.