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Johnson screen tube for water well
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The Johnson screen tube for water well are made during simultaneous winding of specially profiled working wires on a spiral and welding them to carrying wires placed along the tube. This technology allows the production of wedge wire screens when very high gap precision and screen resistance are required. Due to using the newest welding technology we can obtain various distances between carrying wires, very accurate and repeatable gap and therefore produce screens according to customer’s particular requirements. The Johnson screen tube for water wel can apply to the sea water desalination,water softening treatment,oil and chemical processing; the alcohol and other organic solvents recycle filteration; the filtration for chemical acid and soda liquid and the terminal filtration for petrolic products.
1. Screens with high open area are more suitable for the construction of high-quality water wells, oil wells and gas wells.
2. Low cost operation Screens with high open area shall favor groundwater infiltration. Abundant water shall reduce the water levels down, thus to save energy consumption.
3. Reduce the abrasion of the pump
4. Under the same condition, high open area can make the speed of groundwaters entering into the screen much slower than any other filtration apparatus, which will avoid sands entering into.
1. A continuous slot opening which significantly increases the available open area, thus providing greater access to the water bearing zone.
2. A uniform and efficient well development due to the continuous slot opening.
3. Wire welded screens have a strong structure and high open area, as well as accurate slot dimension.
4. Wire welded screens have the features of easy backwashing, last long, safety and reliability as well as low comprehensive cost.
1. Petroleum industry. Oil filtration.
2. Water treatment industry. Desalination of seawater, treatment of industrial water and domestic water. Water softening treatment.
3. Chemical industry. End products of chemical organic solution filtration, such as acid, alkali liquid filtration, alcohol and other products filtering.
4. Hydro-geological exploration.
5. Drilling construction.
6. Geothermal development.
1. Wedge wire screen tube has different edge types to suit different applications and machines, the main types are as follows, just refer to them and choose the best one.
2. Common type.
3. End ring type.
4. Threaded fitting type.
5. Flange type.