1.Hydraulic filter element is installed in oil tank, simplify the system piping and save space, so that the system layout is more compact.They are design with selfclosing valve.When maintaining system, the oil in tank will not reflux.And when replacing oil filter lement, they are removed together with pollution, oil will not flow out; 2.Media: adopts many kinds of materials, such as glass fiber, wood pulp filter paper, stainless stell sinter fiber web and stainless steel wire woven; 3.Normal filtration rating:0.01--1000; 4.Operating pressure: 21 bar---210 bar(hydraulic liquid filtration); 5.Seal : vition, nbr; 6.Usage: keep the cleanliness or ensure no corrosive impurity inside the lubrication oil; 7.Filter media: filter element adopts many kinds of materials, such as glass fiber, wood pulp filterpaper; 8.Stainless steel sinter fiber web and stainless steel wire woven.; 9.Nominal filtration rating: 0.01, ~ 1000, ; 10.Operating pressure:21bar-210bar (hydraulic liquid filtration); 11.O-ring material: vition, nbr.