ISO9000 Approved Johnson Wire Screen Low Carbon Steel Galvanized Material

Johnson Wire Screen OD 89 3" 1.0mm Low Carbon Steel Galvanized Water Well Screen

• Material: stainless steel 302, 304, 316, 304L, 316L or low carbon galvanized
• O.D.: 3, 4, 6, 8, 10, 12 inch and as request
• Slot: 0.1mm - 35mm
• Discrepancy: + / - 0.05mm
• Length: 300mm-6000mm
• End Connection: welded rings or thread couplings (male / female)
• Specification of the wrap wire: 1*2mm, 2*3mm, 2.2*3.5mm, 3*4.6mm and so on
• Specification of the rod: 2.8mm, 3.0mm, 3.8mm, 4.0mm, 4.2mm, 4.5mm, 5.0mm and so on
• Special specification can be made according to your need

Well Screen. Johnson screen is manufactured with V-shaped profile wire which is spirally wound around a cage of longitudinal support rods. Each intersecting point of these wires is fusion welded. The pitch of winding gives different spacing between two adjacent turns of wire. This spacing gives passage for water to enter. The entire process is completed on fully computerized machines.

• Not easy to jam: the special V shaped wire makes the hole of screen outside face smaller than inside, so the hole is not easy to jam
• Slot even: The CNC machine tools strictly control the gap between the wire, so that the gap is even
• Strong corrosion resistance: Stainless steel 304 has high corrosion resistance

Johnson Screens specific continuous-slot construction aims to optimize flow rates, minimize clogging and help develop the water-bearing geological formations faster. It is best applied in the following situations:

• Geological formations comprised of small, fine particles
• Water wells where gravel packs will be installed
• Thin aquifers, where maximum open area is required
• Large- and small-diameter deep wells