Y strainer is the necessary equipment when using water-power controlling valves and the mechansim products which are precise and easily blocked.Normally,Y style strainer is fixed in the entrance end of water-power controlling valves.It can prevent the grain impurity entering the channels,which can lead to block and make the vavle and other equipment out of us .Y strainer is in simple structure and with amall fluid block,and can clean the sewage by itself without dismantling.Y strainer pull rod telescopic filter has the characteristic such as can adjust the fixing length and can dismantle easily.It can set up the meshes quantity of strainer fileter as per necessary.As a general rule,its filter screen should have 18 to 30 meshes for water,40 to 100 meshes for steam,100 to 80 meshes for oil.