Steel wedge Wire Filter Element
March 10, 2018
Slotted stainless steel Sheet Filter Screen
March 13, 2018
Slotted Wedge Wire Screen is also called flower tube, it has the bridge openings arranged in rows and are staggered to reduce the negative effect on the screen’s strength. Typically the slots are punched in a flat sheet that is subsequently rolled into a tube and welded. Regarded as the best choice of well tube filter, they are widely applied in a variety of fields in the developed countries.
1. od(outside diameter): usually 6-5/8″ 7″ 8-5/8″ 9-5/8″ 10-3/4″ 12-3/4″by our customers’ requirements.
2. material: carbon steel or stainless steel(201,304,304l,316, 316l and so on)
3. slot size: given by customers. we can do 0.05-2.5mm.
4. open area: a maximum open area of 60% is offered facilitating high flow capacity and low inlet resistance resulting in extended well life.
5. wire and rod dimensions: obtained through well depth, or collapse strength and tensile strength, which are furnished by customers.
6. connection types: usually stc threads or a passage of welded ring (plain end or beveled end), both of them are welded together with the portion of screen.
7. unit length: we suggest 2.9m or 5.8m, to fit the container.
| SIZE (INCH) |
O.D (MM) |
SLOT (INCH) |
LENGTH (M) |
COLLAPSE STRENGTH (PSI) |
TENSILE WEIGHT (TON) |
WRAP(thick*deep) (MM) |
RODS (MM) |
| 4 | 117 | 0.040 | 3 | 395 | 6 | 2.2*3.0 | 3.8MM/22 |
| 4 | 114.3 | 0.040 | 3 | 395 | 6 | 2.3*3.0 | 3.8MM/22 |
| 6 | 168.3 | 0.040 | 3 | 252 | 8 | 2.3*3.5 | 3.8MM/32 |
| 8 | 219.1 | 0.010 | 3 | 399 | 10.5 | 3.0*5.0 | 3.8MM/48 |
| 8 | 219.1 | 0.020 | 3 | 370 | 10.5 | 3.0*5.0 | 3.8MM/48 |
| 8 | 219.1 | 0.040 | 3 | 323 | 10.5 | 3.0*5.0 | 3.8MM/48 |
| 10 | 273.1 | 0.010 | 3 | 206 | 11 | 3.0*5.0 | 3.8MM/50 |
| 10 | 273.1 | 0.020 | 3 | 191 | 11 | 3.0*5.0 | 3.8MM/50 |
| 10 | 273.1 | 0.040 | 3 | 167 | 11 | 3.0*5.0 | 3.8MM/50 |
Character:
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 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’s entering into screen because of high pressure, thus reduce the abrasion of the pump.
4. Extend the life span of wells Comparatively, groundwater’s 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.
Application:
The continuous-slot well screen is widely used throughout the world for water, oil, and gas wells, and is the dominant screen type used in the water well industry.
1.The continuous-slot well screen is recommended in the following situations;
2.Water wells where gravel packs will be installed
3.Thin aquifers, where maximum open area is required
4.Formation comprised of small or fine particles
5.Small diameter wells
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