1.Each slot opening of sand control screen between adjacent wires is V-shaped, resulting from the special shape of the wire used to form the screen surface.
2.The V-shaped opens, designed to be nonclogging, are narrowest at the outer face and widen inwardly.
3.Continuous-slot Johnson deep well screens provide more intake area per unit area of screen surface than any other type.
4.For any given slot size, this type of screen has maximum open area.
1.Freel throw gravel material special screen used in high standards of geothermal wells.
2.For the gap screen, in order to filter from the inside out, wire surface can be reversed with supporting bar in the pipe.
3.And most surface wire can be combined like this way.The diameter of the gap screen can achieved 426mm,and slot width is variable.
