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What are the advantages of using slide valve and cartridge valve in hydraulic system?

Advantages of slide valve: simple working principle, convenient manufacture and installation, and can usually be used as the main valve of ordinary reversing valve, proportional valve and even servo valve.

Cartridge valve: small size, flexible installation, can pass large flow. It is usually used in combination with springs to form pressure valves, such as overflow valves and pressure reducing valves.