stainless steel 304 bridge slot screen tube for well drilling filter tube
Product Description
Bridge slot screen have bridge opening 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. The sand and gravel can't easily block the slot because of the special bridge style design. This kind of slot screen has great mechanical strength and water entering capacity. Meanwhile, bridge slot screens are light, cheap and easily operating. Regarded as the best choice of well tube filter, they are widely applied in a variety of fields in the developed countries.
Detailed Photos
The main specification
| Nominal diameter (mm) |
146 |
159 |
219 |
273 |
325 |
377 |
426 |
529 |
| ID |
130 |
140 |
138 |
200 |
198 |
254 |
250 |
246 |
305 |
300 |
297 |
357 |
350 |
346 |
406 |
400 |
398 |
502 |
500 |
498 |
| Wall thickness |
5 |
5 |
6 |
5 |
6 |
5 |
6 |
8 |
5 |
6 |
8 |
5 |
6 |
8 |
5 |
6 |
8 |
6 |
7 |
8 |
| Coupling outside diameter |
146 |
160 |
162 |
220 |
226 |
274 |
278 |
278 |
325 |
328 |
329 |
377 |
378 |
379 |
426 |
428 |
432 |
529 |
530 |
531 |
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 |
Mechanical property
| Nominal diameter (mm) |
159 |
219 |
273 |
325 |
377 |
426 |
529 |
| Wall thickness |
5 |
6 |
5 |
6 |
5 |
6 |
8 |
5 |
6 |
8 |
5 |
6 |
8 |
5 |
6 |
8 |
6 |
7 |
8 |
| Tensile strength (KN) |
230 |
270 |
320 |
390 |
400 |
490 |
653 |
480 |
570 |
760 |
560 |
670 |
893 |
630 |
760 |
1048 |
782 |
944 |
1296 |
| Critical Collapse Strength (N/cm2) |
520 |
690 |
340 |
450 |
170 |
230 |
306 |
136 |
203 |
270 |
128 |
183 |
244 |
92 |
135 |
203 |
90 |
136 |
186 |
Slot sizes and open area
| Wall thickness |
5 |
6 |
8 |
| slot |
0.75 |
1 |
1.5 |
2 |
2.5 |
0.75 |
1 |
1.5 |
2 |
2.5 |
0.75 |
1 |
1.5 |
2 |
2.5 |
| Bridge lateral spacing |
12.75 |
15 |
16 |
| Bridge longitudinal spacing |
45.50 |
52 |
62 |
| Porosity |
15.5% |
17% |
21% |
24% |
26.5% |
14.5% |
15.7% |
18.9% |
22.2% |
25.7% |
13.5% |
14.5% |
17.9% |
21.2% |
24.1% |
Customer
Company information
Company Information
Hengshui Guangxing Screens Co.,Ltd is a leading manufacturer of water well screen, flat panel screens, intake screens, rotary drums, cartridges and fabricated stainless wedge wire screen products.
Our factory founded in 1986 to produce the best possible profile wire screens available.
We provide screening solutions to almost every industry, including:
Water Well,
Food &Beverage Screens,
Pharmaceutical & Biological industries,
Refining & Petrochemical,
Water Treatment & Liquid / Solids Separation,
Mineral & Aggregate Processing,
Pulp & Paper Screens.
Guangxing Screens is producing wedge wire and profile wire in several materials, with a wide variety of sizes, shapes and precision openings.
For over 30 years, Guangxing Screens has continuously produced metal products for customers seeking a competitive advantage in their industry. Guangxing Screens is an ISO-9001:2008 registered company.
We are committed to producing quality products which meet or exceed both customer and industry standard. The majority of our products are exported to original equipment manufacturers of 35 countries of Europe, America, Africa, and Asia.
We know our customers and we listen to them and respond quickly to their needs.
Can't find what you 're looking for?
Contact us , we could work with you to find a solutions.
Audited Supplier 
){kind=link}