Basic Info.
Model NO.
od168mm, 6mm wall thickness
Usage
Liquid Filter, Water Well Drilling
Transport Package
Single with Bubble Bag
Origin
China, Henan Province
Product Description
ASTM a53 galvanized carbon steel bridge slot screen for well drilling
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.
Production flow
Step 1:Incoming inspection
Step 2:Blanking and cutting
Step 3:Dimensional inspection
Step 4:Punching
Step 5:Roll round
Step 6:Welding
Step 7:Product dimensional and surface inspection
Step 8Performance Test
Step 9:Surface treatment (Spray painting ,galvanizing)
Technical data
The different type of Bridge slot screen |
Diameter(mm) | 146 | 159 | 219 | 273 | 325 | 377 | 426 | 529 |
ID(mm) | 130 | 140 | 138 | 200 | 198 | 254 | 250 | 246 | 305 | 300 | 297 | 357 | 350 | 346 | 406 | 400 | 398 | 502 | 500 | 498 |
Thickness(mm) | 5 | 5 | 6 | 5 | 6 | 5 | 6 | 8 | 5 | 6 | 8 | 5 | 6 | 8 | 5 | 6 | 8 | 6 | 7 | 8 |
Coupling OD(mm) | 146 | 160 | 162 | 220 | 226 | 274 | 278 | 278 | 325 | 328 | 329 | 377 | 378 | 379 | 426 | 428 | 432 | 529 | 530 | 531 |
Usually the length of bridge slot screen is 3.1m, and our engineer also can design the products and supply the best solution as per the clients' special requirements.We are welcome your inquiry!
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 |
Advantage
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.
Product show
Application in project
Package details:
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
Batch number
Date of manufacture
Safe heating & application temperature
Contact us
HUADONG SCREN CO.,LTD
Add: Dakuai Industrial Park,Fengquan District ,Xinxiang City,Henan Province, China
Tel:0086-373-2815986
Fax:0086-373-2815986
Mob: 0086-13525069979
Address:
Dakuai Industrial Park, Fengquan District, Xinxiang, Henan, China
Business Type:
Manufacturer/Factory
Business Range:
Agriculture & Food, Industrial Equipment & Components
Management System Certification:
ISO 9000
Company Introduction:
Huadong Screen Co., Ltd is located in high-tech enterprise concentration areas of Xinxiang, Henan province. It covers an area of 50000 square meters, with a total investment of 50 million Yuan. Since China′s reform and open up, at the beginning of its establishment, which is in line with the good faith management, quality first and customer first principles. After several years of development, our company has become a diversified enterprise including production, trade and service integration. We have a group of professional technical and sales staff and management team, extensive and stable business channel as well as the strong economic strength, international and domestic marketing ability. Our company treats customers as the center, focuses on CSI of after-sales products and service, and constantly deepens the cooperative relations with customers.