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      Johnson tube

      Johnson tube, also known as filter tube, is composed of V-shaped winding wire and supporting bar. Each intersection point is connected by welding, which has strong structure and good mechanical performance. The V-shaped section avoids blockage and ensures smooth water flow at the same time. The continuous gap has a larger water area, and at the same time, it can reduce the seepage velocity of groundwater, avoid sand entering the pipe under large water pressure, and have better sand filtration property. The gap can also be changed according to different geological conditions.


Product introduction:
        Johnson tube It is also called filter tube. It is composed of V-shaped winding wire and supporting bar. Each intersection point is connected by welding. It has strong structure and good mechanical performance. The V-shaped section avoids blockage and ensures smooth water flow at the same time. The continuous gap has a larger water area, and at the same time, it can reduce the seepage velocity of groundwater, avoid sand entering the pipe under large water pressure, and have better sand filtration property. The gap can also be changed according to different geological conditions.
Materials: 3164l, 304L, etc
Performance features:
1. With high efficiency sand control performance, it can better block sand particles in formation and meet the needs of underground sand control.
2. Uniform filter hole, high permeability and anti blocking performance.
3. Large filtration area and low flow resistance.
4. The excellent corrosion resistance, acid, alkali and salt corrosion resistance of stainless steel can meet the special requirements of oil wells, and the gap will not be gradually enlarged due to corrosion.
5. The multi-layer structure is welded into one, which can make the filter hole stable and has strong anti deformation ability.
Specifications:
Sieve tube diameter (mm): 62, 75, 90, 102, 116, 128
Sieve tube gap (mm): 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4