Steel and stainless steel pipes and screens
PROMAFORSOVEMA stainless steel pipes and screens, in AISI 304 (1.4301) or AISI 316 (1.4404) grade, are designed for the most demanding geotechnical applications. Suited for drinking water collection, environmental remediation, drainage, water table lowering and geothermal wells, these systems are available from DN 100 to DN 1200. Calibrated screens from 0.3 to 3 mm available from our stock.
Steel and stainless steel pipe range
Available connection types: ZSM, weld-on coupling, flange coupling, weld-on sleeve, API thread, weld joint with slip-on collar, plain weld-end.
| Ext. Ø (inch) |
DN | Wall thickness (mm) |
|---|---|---|
| 4" | 100 | 3 - 4 - 5 |
| 5" | 125 | 3 - 4 - 5 |
| 6" | 150 | 3 - 4 - 5 - 6 |
| 14" | 350 | 4 - 5 - 6 - 7 - 8 - 10 - 12 |
| 16" | 400 | 4 - 5 - 6 - 7 - 8 - 10 - 12 |
| 18" | 450 | 4 - 5 - 6 - 7 - 8 - 10 - 12 |
| 24" | 600 | 4 - 5 - 6 - 7 - 8 - 10 - 12 |
| 32" | 800 | 6 - 7 - 8 - 10 - 12 |
| 38" | 950 | 6 - 7 - 8 - 10 - 12 |
| 44" | 1200 | 6 - 7 - 8 - 10 - 12 |
Other wall thicknesses and lengths available on request.
Available screen types
Three screen types are offered to suit the constraints of each project: wire-wound screens, oblong-hole screens and louvred screens.
Micro-slotted piezometric pipes in AISI 304 and 316 stainless steel
Designed for the geotechnical sector, our AISI 304 and 316 stainless steel piezometric pipes meet the strictest requirements for resistance and durability. Ideal for piezometers, horizontal sub-drains and environmental remediation installations, they offer excellent corrosion resistance and high mechanical performance. The table below shows performance based on open area (OA %) and flow rate that can be collected per metre of screen, assuming a water entry velocity of 3 cm/s.
| Ext. Ø (inch) |
Ext. Ø (mm) |
Wall thickness (mm) |
Int. Ø (mm) |
Slot 0.7 mm OA=4.5% Q(L/s per m) |
Slot 1.0 mm OA=4.8% Q(L/s per m) |
Slot 1.5 mm OA=5.6% Q(L/s per m) |
|---|---|---|---|---|---|---|
| 1" | 33.7 | 3 | 27.7 | 0.14 | 0.15 | 0.18 |
| 1"1/4 | 42.4 | 3 | 36.4 | 0.18 | 0.19 | 0.22 |
| 1"1/2 | 48.3 | 3 | 42.3 | 0.20 | 0.22 | 0.25 |
| 2" | 60.3 | 3 | 54.3 | 0.26 | 0.27 | 0.32 |
| 2"1/2 | 76.1 | 3 | 70.1 | 0.32 | 0.34 | 0.40 |
| 3" | 88.9 | 3 | 82.9 | 0.38 | 0.40 | 0.47 |
| 4" | 114.3 | 3 | 108.3 | 0.48 | 0.52 | 0.60 |
Need steel or stainless steel pipes for your project?
PROMAFORSOVEMA holds a permanent stock of stainless steel pipes and screens, available from our 4 branches throughout France. Contact our technical teams for a customised quote, to check diameter availability or to request specific wall thicknesses suited to your project.
