The Y-type filter is a small device to remove a small amount of solid particles in the liquid, which can protect the normal operation of the device. When the fluid enters the filter cartridge with a filter screen of a certain size, its impurities are blocked, and the clean filtrate is discharged from the filter outlet. When cleaning is required, just take out the removable filter cartridge and reload it after treatment. Therefore, it is very convenient to use and maintain. Y-type filter, also known as dirt remover and filter valve, is an indispensable device in the pipeline system for medium transmission. Its function is to filter the mechanical impurities in the medium. It can filter the rust, sand particles in the sewage, and a small amount of solid particles in the liquid to protect the fittings on the equipment pipeline from wear and blockage, and can protect the normal operation of the equipment.