The valve is a flow-controlling mechanism that normally comes with fixtures to connect to pipelines. On the other hand, A cartridge consists of two components of a valve that are tight together and simply turn away from each other to allow water to flow and close together to stop the flow of water.
When a valve is sealed, it includes a rubber seat just on the bottom to keep the water off. The only restriction is that no dirt should get inside the cartridge, since sand would jam it up and cause it to leak.