EGR Control Valve Cylinder for Sinotruk HOWO T5G SITRAK G5 G7 C7 Truck MC07 MC07H Engine Spare Parts

Here is the English translation:

Reducing NOx emissions: By recirculating a portion of the exhaust gas back into the intake manifold, it lowers the peak combustion chamber temperature and dilutes the oxygen concentration, thereby suppressing the formation of NOx.

Precise regulation of recirculation flow: As a pneumatic actuator, it receives control signals and provides mechanical force to adjust the valve opening in real time, adapting to different operating conditions such as idling and acceleration, and ensuring that the actual recirculation flow matches the value calculated by the ECU.

Thermal management and durability: It typically adopts a liquid-cooled design, using circulating coolant to protect the actuator from thermal damage caused by high-temperature exhaust gas, thereby ensuring the long-term stability of the emission control system.

Here is the English translation:

Fault Identification
If this component suffers from carbon buildup seizure, air leakage, or electronic actuator failure, the vehicle typically exhibits the following symptoms: the emission warning light illuminates on the dashboard (common fault codes P0401–P0406), reduced engine power/poor acceleration, black smoke, and unstable idling or even stalling.