Plastic PVC-U Water Well Pipes & Screens
The excellent chemical and physical properties of raw material, the precision in the production processes through an automated procedure adds to PVC-U pipes the characteristics and the mechanical strength which guarantee the long life operation of the drilling.
Advantages
1. Maximum resistance against corrosion from seawater, acid and underground corrosive water and gases
2. Larger hydraulic conductivity
3. Non-toxic and suitable for drinking water
4. Easy transportation and installation
| EXTERNAL DIAMETER | WALL THICKNESS | USABLE INTERNAL DIAMETER | SOCKET EXTERNAL DIAMETER OF BOX | THREADING | STANDARD LENGTH | WEIGHT | THREADS TRACTION RESISTANCE | ||
| in | mm | mm | PN | mm | mm | m | kg/m | kg | |
| 4" | 125 | 6.8 | 12.5 | 111 | 135 | TRAPEZOIDAL 6mm | 3 | 3.8 | 2200 |
| 5" | 140 | 7.5 | 12.5 | 125 | 149 | TRAPEZOIDAL 6mm | 3 | 4.6 | 3200 |
| 5" 1/2 | 160 | 8.5 | 12.5 | 143 | 175 | TRAPEZOIDAL 6mm | 3 | 5.9 | 4100 |
| 6" | 170 | 8 | 12.5 | 154 | 181 | TRAPEZOIDAL 6mm | 3 | 6.9 | 4100 |
| 6" 1/2 | 180 | 9.2 | 12.5 | 161.6 | 194 | TRAPEZOIDAL 6mm | 3 | 7.3 | 4300 |
| 7" | 200 | 10.2 | 12.5 | 179.6 | 214 | TRAPEZOIDAL 6mm | 3 | 9.1 | 4300 |
| 8" | 225 | 11.2 | 12.5 | 202.6 | 241 | TRAPEZOIDAL 12mm | 3 | 11.3 | 7400 |
| 9" | 250 | 12.4 | 12.5 | 225.2 | 269 | TRAPEZOIDAL 12mm | 3 | 13.9 | 8400 |
| 10" | 280 | 13.4 | 12.5 | 253.2 | 298 | TRAPEZOIDAL 12mm | 3 | 18.3 | 10500 |
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Metallourgia Mandras S.A. is the first to produce filter pipes with slanted slots instead of horizontal to pipes generatrices. Research has showed that slots horizontal to pipes generatrices weaken the physical and mechanical features (structure) of PVC and make them more vulnerable to cracks and breaks.
At the same time, the slanted slots are very hydraulically efficient as they allow greater penetration of water inside the drill. Slots can be done in two, three or four sides of the pipe in accordance with the needs of the drilling.
| PVC-U SLOTTED SCREENS YIELD | |||||||
| SLOT WIDTH - mm | |||||||
| 1.5 | 2 | 3 | |||||
| EXTERNAL DIAMETER | OPEN AREA | Water supply | OPEN AREA | Water supply | OPEN AREA | Water supply | |
| inch | mm | % | m3/ h/m | % | m3/ h/m | % | m3/ h/m |
| 4'' | 125 | 9.2 | 3.2 | 11 | 4 | 12 | 4.7 |
| 5'' | 140 | 8 | 3.5 | 11 | 4.7 | 12 | 5.2 |
| 6'' | 160 | 8 | 4.2 | 11 | 5.2 | 12 | 6.2 |
| 6'' 1/2 | 180 | 8 | 5 | 11 | 6.1 | 12 | 7.2 |
| 7'' | 200 | 8 | 5.2 | 11 | 6.7 | 12 | 7.7 |
| 8'' | 225 | 8 | 5.7 | 11 | 7.7 | 12 | 9.2 |
| 9'' | 250 | 8 | 6.2 | 10 | 7.7 | 12 | 9.2 |
| 10'' | 280 | 8 | 6.5 | 10 | 8.2 | 12 | 10.3 |
| PHYSICAL AND MECHANICAL FEATURES | |||
| FEATURES | VALUE | UNIT | TEST METHOD |
| Specific weight | 1,35-1,46 | g / cm3 | ISO 1183 |
| Shock resistance (Test method Charpy) | 5 | kgcm/cm2 | ASTMD256-56 |
| Linear expansion coefficient | 0,06-0,08 | mm/m 0 C | UNI 6061167 |
| Electrical resistance | 10 12 | ohm cm | UNI 4288 |
| Thermal conducivity | 0.13 | kcal/mh 0 C | DIN51612 |
| Elongation at traction | 10 | % | ISO R 527 |
| Όριο διαρροής | 338 | kg / cm2 | ASTM D638 |
| Yield point | 2600 | Ν/mm2 | DIN 53457 |
| Softening temperatrure | 82 | 0 C | ASTM D985 |
| Specific weight | 1,35-1,46 | g / cm3 | ISO 1183 |
