continuous slot well screen
September 15, 2017
specifications of water filter nozzle and its applications
September 20, 2017
Advantages for Stainless Steel Johnson Well Screenfor drilling equipment:
1.Johnson screen has a continuous slot opening which significantly increases the available open area , thus providing greater access to the water bearing zone(the aquifer)
2.A V-shaped profile wire which avoids clogging and ensures an uninterrupted flow.
3.A uniform and efficient well development due to the continuous slot opening.
4.Ladder-like wire welded screens have a strong structure and high open area, as well as accurate slot dimension.
5.Ladder-like wire welded screens have the features of easy backwashing, last long, safety and reliability as well as low comprehensive cost.
wedge wire screen pipe
Application: filters, strainers, architectural screens, water treatment underdrains, media support grids and overlays, infiltration gallery screens
Features for Stainless Steel Johnson Well Screen for drilling equipment:
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
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 screen because of high pressure, thus reduce the abrasion of the pump.
4. Extend the life span of wells
Comparatively, groundwaters entering into screen with higher open area is much easier than the entering into lower open area screen. The slow water flow shall extend the life span of wells.
Stainless Steel Johnson Well Screen
The specifications of the Continuous Slot Wedge Wire screen for drilling equipment:
wedge wire screen,wedge wire screens,wedge wire screen manufacturers
|
Slot
mm
|
Opening
%
|
Weight
Kg/㎡
|
Slot
mm
|
Opening
%
|
Weight
Kg/㎡
|
Slot
mm
|
Opening
%
|
Weight
Kg/㎡
|
|
0.25
|
14.3
|
22.0
|
0.25
|
10.2
|
25.9
|
0.25
|
8.2
|
30.8
|
|
0.30
|
16.7
|
21.5
|
0.30
|
12.0
|
25.4
|
0.30
|
9.7
|
30.3
|
|
0.35
|
18.9
|
21.0
|
0.35
|
13.7
|
24.9
|
0.35
|
11.1
|
29.8
|
|
0.40
|
21.1
|
20.5
|
0.40
|
15.4
|
24.4
|
0.40
|
12.5
|
29.3
|
|
0.50
|
25.0
|
19.5
|
0.50
|
18.5
|
23.9
|
0.50
|
15.2
|
28.8
|
|
0.75
|
33.3
|
18.1
|
0.75
|
25.4
|
22.0
|
0.75
|
21.1
|
26.9
|
|
1.00
|
40.0
|
16.1
|
1.00
|
31.3
|
20.5
|
1.00
|
26.3
|
25.4
|
|
1.25
|
45.5
|
15.1
|
1.25
|
30.2
|
19.5
|
1.25
|
30.9
|
23.9
|
|
1.50
|
50.0
|
14.2
|
1.50
|
40.5
|
18.1
|
1.50
|
34.9
|
23.0
|
|
2.00
|
57.1
|
12.2
|
2.00
|
47.6
|
16.6
|
2.00
|
41.7
|
21.0
|
|
6.00
|
–
|
–
|
6.00
|
73.2
|
10.3
|
6.00
|
68.2
|
13.2
|
|
8.00
|
–
|
–
|
8.00
|
–
|
–
|
8.00
|
74.1
|
11.2
|
