2712030164 Valve From China Customized Size Powder Metallurgy Technology For Mercedes 212, 207, 204, 172

 Valve is one of the widely used drives in automobiles, and it mainly has the following functions:

1. AC Expansion Valve: Sometimes referred to as a **conversion valve** in certain vehicle systems. Regulates the flow of refrigerant into the evaporator to control cooling. Ensures efficient temperature control and prevents freezing of the evaporator. 
2. Brake Proportioning Valve: Helps adjust brake fluid pressure between front and rear brakes. Important when converting drum brakes to disc brakes.  
3. Transmission Valve: Controls hydraulic pressure for smooth shifting in an automatic transmission. Can be modified or replaced during manual-to-automatic transmission conversion.