A pressure compensated cartridge valve is a type of valve used in hydraulic systems to maintain a consistent flow rate regardless of pressure changes. It automatically adjusts its internal settings to compensate for variations in system pressure, ensuring that the flow remains steady even as the pressure fluctuates. This type of valve is essential for applications where precise flow control is crucial, as it helps maintain optimal performance and efficiency by preventing flow rate deviations caused by pressure changes. Cartridge style valves are meant to be used with a manifold or cavity body, offering a compact and integrated solution within the hydraulic system.