Boost Valve: Control & Regulation

Can someone explain the exact function of the boost pressure control valve?

The turbocharger is powered by the exhaust gas flow from the engine. This turbine, in turn, drives the compressor of the turbocharger (which generates the boost pressure). As the engine speed increases, the exhaust gas flow increases proportionally, and the turbocharger would generate very high boost pressures at high engine speeds, which would not only endanger the turbocharger itself but also the engine.
That's why there's a boost control valve, which automatically regulates the boost pressure by using a wastegate or VTG to reduce it and prevent engine damage.
I hope I've been of help to you.

Hi.

On Rainer's website, you can find expert articles on the topic of boost pressure control .