Teflon lined Y-type filter is a small device for removing 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 certain size filter screen, its impurities are blocked, and the clean filtrate is discharged from the filter outlet. When cleaning is required, the removable filter cartridge can be taken out and re loaded after treatment. Therefore, it is convenient to use and maintain. Y-type filter, also known as decontaminator and filter valve, is a device of the pipeline system for conveying medium. Its function is to filter the mechanical impurities in the medium. It can filter the rust, sand and a small amount of solid particles in the sewage to protect the fittings on the equipment pipeline from wear and blockage, and protect the normal operation of the equipment. When the fluid enters the filter cartridge with a certain size filter screen, its impurities are blocked, The clean filtrate is discharged from the outlet of the filter. When cleaning is required, the removable filter cartridge can be taken out and re loaded after treatment. Therefore, it is convenient to use and maintain.