ASTM A53 Galvanized Carbon Steel Bridge Slot Screen for Well Drilling / Bridge Slot Screen
|FOB Price:||Get Latest Price|
|Min. Order:||60 Meters|
|Production Capacity:||2000 Meter Per Week|
|Transport Package:||Single with Bubble Bag|
|Payment Terms:||L/C, T/T, D/P, Western Union|
- Model NO.: od168mm, 6mm wall thickness
- Layers: Single
- Type: Filter Cylinder
- Structure: Combined
- Specification: od 16inch
- HS Code: 8421999000
- Material: Metal
- Usage: Liquid Filter, Water Well Drilling
- Hole Shape: Round
- Trademark: haudong screen
- Origin: China, Henan Province
The sand and gravel can't easily block the slot because of the special bridge style design, and Bridge Slot Screens has great mechanical strength and water entering capacity. Meanwhile, Water Well Screens use steel punching technology and is rolled in many ways, so they are light, cheap and easily operating. We use CNC to punch, so the slot can change as your requirements. In order to give customers more convenience, we can offer any diameter Bridge Slot Screens and Water Well Screens. We also offer galvanized Well Screens to prolong the operational life.
The bridge slot screen is manufactured on a press flat sheets or plates .The slot opening is usually vertical and provides two orifices, longitudinally aligned to the axis. The perforated steel sheet ,or plates, are then fabricated into tubes, and the seam is welded .Normally ,5-ft sections of bridge slot screen are welded together into longer lengths for field installation.
The bridge slot screen is usually installed in gravel envelope wells .Its chief advantages is a reasonably high area of opening at a relatively low cost. Since gravel control is more difficult with any vertical opening as compared with a horizontal opening ,a smaller-aperture size relative to the pack material should be selected.
Step 1:Incoming inspection
Step 2:Blanking and cutting
Step 3:Dimensional inspection
Step 5:Roll round
Step 7:Product dimensional and surface inspection
Step 8Performance Test
Step 9:Surface treatment (Spray painting ,galvanizing)
|The different type of Bridge slot screen|
|Selection of slot size|
|Aquifer classification||gravel||Rough sand||Medium sand||Fine sand||Mealy sand|
|Screening results (mm)||1-2.5||0.5-1||0.25-0.5||0.1-0.25||0.1-0.25|
|Bridge slots (mm)||3||1.5-2||1||1||0.75|
|Filling gravel spec (mm)||4-20||2-8||2-3||2-3||2-3|
|Filling gravel thickness (mm)||75-100||100||100-200||100-200||100-200|
1.High strength through resistance to twisting, compressive, and tensile forces...
2.A smooth bore that does not impede the passage of probes, tools, etc.
3.The special structure of the slot makes it difficult for particles to get stuck in the slot, thus bettering its discharge capacity.
4.The special bridge slot of screens helps improving their mechanic strength.
5.Application of Anticorrosive coasting will prolong the span life of wells.
6. Slots and the diameter of bridge slot screens can be custom made to satisfy your needs.
7.Convenient to operate owing to various connecting methods between screens.
8. Lighter in weight and lower in price.
Application in project
Single with bubble bags and then put into wooden cases(fumigation certificate). Each case is clearly marked with:
Name & identification mark of manufacturer-Huadong Brand Johnson screens
Date of manufacture
Safe heating & application temperature
HUADONG SCREN CO.,LTD
Add: Dakuai Industrial Park,Fengquan District ,Xinxiang City,Henan Province, China