Y type filter is belong to pipeline rude filter series . Normally installed in pressure reducing valve,pressure relief valve, the valve for water or other equipment inlet end . Used to clean up theimpurity in the media, in order to protect the valve and the equipment normally use . T type filter is a kind of indispensable filtering device which is transport medium pipeline system . It has many advantages , eg : easy made , advanced structure , easy install and washing , big accept dirt , small resistance , easy drain contamination .