Where is the PCV valve located in diesel engines?

In diesel engines, the positive crankcase ventilation (PCV) valve is typically located in the cylinder head cover, near the valve train. It looks like a small plastic or metal valve with a hose that connects to the intake manifold. The PCV valve functions by regulating the flow of crankcase gases back into the engine, helping to prevent the build-up of pressure in the crankcase and drawing oil and dirt particles into the engine. It also facilitates ventilation and ensures a controlled flow of air and gases in the engine's crankcase.