The screen made with carbon steel sheeting (S 235J) and stainless steel (AISI 304/316/L) are used for well with a high flow rate, e.g. for lowering groundwater and for geothermal wells. The narrower slotted flow-through filters are recommended for use with coatings made of geotextile (TNT) or stainless steel mesh.
Our slot are 4x 40 mm
- raw material : S235.JR o Stainless AISI 304L AISI 316, or Galvanized
- LENGHT: 5 or 6 mt
- Connection welding, flanged, thread, Gi.RA.MO., GI.SA.MO, Stc
| FILTRI OBLUNCHI – OBLOG HOLES SCREEN – CREPINE OBLUNCHE | |||||||
| DIAMETRO DIAMETER | SPESS. THICKNESS | cava 4×40 | cava 5×40 | ||||
| dn | INCH. | Mm. | Mm. | open area % | litri/s/m | open area % | litri/s/m |
| 100 | 4″ | 114 | 3,4,5 | 13,409% | 2,30 | 16,762% | 2,88 |
| 125 | 5″ | 139,7 | 3,4,5 | 13,131% | 2,26 | 16,414% | 2,82 |
| 150 | 6″ 5/8 | 168 | 3,4,5 | 12,739% | 2,19 | 15,924% | 2,74 |
| 7″ | 177,8 | 3,4,5 | 12,037% | 2,07 | 15,046% | 2,59 | |
| 210 | 3,4,5 | 11,647% | 2,00 | 14,559% | 2,50 | ||
| 200 | 8″ 5/8 | 219 | 3,4,5,6 | 12,564% | 2,16 | 15,705% | 2,70 |
| 250 | 9″ 5/8 | 244 | 3,4,5,6 | 11,277% | 1,94 | 14,096% | 2,42 |
| 9″ 7/8 | 250 | 3,4,5,6 | 11,006% | 1,89 | 13,758% | 2,36 | |
| 250 | 10″ 1/2 | 273 | 3,4,5,6 | 11,199% | 1,92 | 13,999% | 2,41 |
| 11″ 13/16 | 300 | 4,5,6 | 11,210% | 1,93 | 14,013% | 2,41 | |
| 300 | 12″ 3/4 | 323 | 4,5,6,7 | 11,358% | 1,95 | 14,198% | 2,44 |
| 350 | 14″ | 355 | 4,5,6,7 | 12,057% | 2,07 | 15,071% | 2,59 |
| CAVE | OPEN AEREA | SPESS THICKNESS | |||||
| A | B | % | Mm | ||||
| 4 | 40 | 14 | 3,4 | ||||
| 5 | 40 | 21 | 5,6,7 | ||||
Formula (l/s/m) =[latex size=”3″]\frac{4,8*area*diameter*\pi}{100}[/latex]
