The electronically controlled exhaust gas recirculation valve (EGR) can open, close, or adjust exhaust gas recirculation. The engine undergoes exhaust gas recirculation and reburning, resulting in a decrease in combustion temperature and a significant reduction in the generation of nitrogen oxides.

BHKS provides pneumatic EGR valves and electric EGR valves to meet the emission values stipulated by the laws of commercial vehicle country VI, and also produces one-way valves for the EGR system.