Johnson Type Continuous Slot Wire Screen Hi-Flow Stainless Steel Scree, also known as Johnson screen, water well screen, wound screen, wire wrapped screen,filter pipe, It is widely used in oil, gas, water well sand control industry, especially in the water well industry prominent position, widely used in water resources filter screen pipe. Stainless steel screen using full welding production process, the application of special trapezoidal wire winding in a circumferential arrangement of a group of supporting wire welding from.
Johnson Type Continuous Slot Wire Screen Hi-Flow Stainless Steel Scree self-cleaning action and non-clogging performance. The slot width on the surface is increasing towards the inner side of the screen. This slot geometry is called keystone slot which has the ability of anti-plugging. Precise slot width should be designed to satisfy operational requirements. Usually, the slot width is two times the size of the formation sand.
Name: Johnson screen,Water wire screen,Water well screen, Wire warp screen,Wedge wire screen,Screen tube,Slotted tube,Wound screen,Continuous slot screen filter,Sand control screen, Wedge wire screen pipe,Oil screen. | |||||||
Material: Stainless steel 304,316L,Non-magnetic Stainless steel, Low carbon galvanized,904L,Duplex steel etc. | |||||||
Diameter: From 29-1300mm (Normal diameter is in the below table) | |||||||
Slot: From 0.1-100mm (Normal slot 0.5mm, 0.63mm, 0.75mm, 1.0mm, 1.5mm, Pls refer to below table) | |||||||
Length: From 100-6000mm (Normal length is 2.9m and 5.8m, to fit container) | |||||||
Wrap wire:2*3.5mm,2.2*3.5mm,2.2*4.5mm,3*4.6mm,3*5mm,3*6mm,3*6.5mm,3.2*6mm,4*7mm etc. | |||||||
Support rod:ø3.0-ø6.0mm round wire, Also can be Vee-shaped wire. | |||||||
Ends:Welded rings/Plain beveled ends,Male/female threaded,Flange etc. | |||||||
Use:Water Well,Waste Water Treatment,Water supply systems,Coal & Mine,Food Processors & Beverage Screens, Environmental protection,Refining & Petrochemical,Architecture & Construction etc. | |||||||
Sizes (inch) | OD (mm) | Slot (mm) | Length (m) | Tenslie Strength | Collapse Strength | Wrap wire Vee-shaped wire(mm) | Support rod Round wire(mm) |
3-1/2 | 88.9 | 1.0 | 2.9 | >22 | 10.2 | 2.2*3.5 (Width*height) | ø3.8MM×22 NOS |
4-1/2 | 114.3 | 1.0 | 2.9 | >28 | 11.5 | 2.2*3.5(Width*height) | ø3.8MM×22 NOS |
6-5/8 | 168.3 | 0.75 | 5.8 | >40 | 12.8 | 2.2*3.5(Width*height) | ø3.8MM×32 NOS |
6-5/8 | 168.3 | 1.0 | 5.8 | >33 | 12.8 | 2.2*3.5(Width*height) | ø3.8MM×32 NOS |
6-5/8 | 168.3 | 0.63 | 5.8 | >83 | 45 | 3.2*6.0(Width*height) | ø6.0MM×32 NOS |
8-5/8 | 219.1 | 1.0 | 5.8 | >34 | 21.9 | 2.3*3.5(Width*height) | ø3.8MM×48 NOS |
8-5/8 | 219.1 | 1.0 | 5.8 | >50 | 38.2 | 3.0*5.0(Width*height) | ø4.0MM×48 NOS |
8-5/8 | 219.1 | 1.0 | 5.8 | >60 | 46 | 3.2*6.0(Width*height) | ø5.0MM×48 NOS |
10-3/4 | 273.1 | 0.75 | 5.8 | >50 | 32.9 | 2.2*3.5(Width*height) | ø4.0MM×55 NOS |
10-3/4 | 273.1 | 1.0 | 5.8 | >60 | 39.5 | 3.0*4.6(Width*height) | ø4.8MM×55 NOS |
10-3/4 | 273.1 | 1.0 | 5.8 | >100 | 48 | 3.2*6.0(Width*height) | ø5.0MM×55 NOS |
12-3/4 | 323.9 | 1.0 | 5.8 | >120 | 37.2 | 3.0*5.0(Width*height) | ø4.0MM×56 NOS |
14 | 355.6 | 1.0 | 2.9 | >80 | 37.8 | 3.0*5.0(Width*height) | ø4.0MM×59 NOS |
16 | 426 | 1.0 | 2.9 | >80 | 37.5 | 3.0*5.0(Width*height) | ø4.0MM×54 NOS |
1. Screens with the high open area are more suitable for the construction of high-quality water wells, oil wells, gas wells.
2. Low-cost operation Screens with high open area shall favor groundwater infiltration. Abundant water shall reduce the water level’s down, thus to save energy consumption
3. Reduce the abrasion of the pump Under the same condition, high open area can make the speed of groundwater’s entering into the screen much slower than any other filtration apparatus, which will avoid sand entering into the screen because of high pressure, thus reduce the abrasion of the pump.
4. Extend the life span of wells Comparatively, groundwater’s entering into a screen with a higher open area is much easier than entering into a lower open area screen. The slow water flow shall extend the life span of wells.