Heavy-duty pressure transmission pipelines conveying treated desalinated water and deep-aquifer groundwater across municipal networks and regional pumping corridors. PN 10 to PN 25, 63 mm to 400 mm OD.
Direct pricing from the Jeddah plant, with technical submittal support.
ALFA AL-ARABIA manufactures high-integrity uPVC bulk water transmission pipes engineered for continuous operating pressures up to 25 bar (PN 25). Produced from 100% virgin suspension PVC resin stabilized with non-toxic Calcium-Zinc compounds, these pipes guarantee zero heavy-metal leaching, zero scaling (Hazen-Williams C=150), and complete resistance to the corrosive desalinated water chemistry common across Saudi Arabia.
| Material | uPVC (PVC-U) Lead-Free Ca-Zn Stabilized |
|---|---|
| Standards | DIN 8062, ISO 1452, SASO 14/15, NWC Specs |
| Pressure Ratings | PN 10 (10 bar), PN 16 (16 bar), PN 25 (25 bar) |
| Size Range | 63 mm to 400 mm Outer Diameter |
| Hydraulic Efficiency | Hazen-Williams C = 150 (Lifetime Constant) |
| Vendor Approval | Saudi Aramco # 10116102, NWC Prequalified |
Over 70% of Saudi Arabia's drinking water originates from thermal and reverse osmosis (RO) desalination plants operated by the Saline Water Conversion Corporation (SWCC). This desalinated water is slightly mineral-deficient and low in alkalinity, making it chemically aggressive toward metallic pipes (ductile iron and carbon steel), which suffer internal tuberculation and red water complaints unless expensively lined.
ALFA uPVC transmission pipes are 100% chemically inert to aggressive desalinated water. They require no internal cement mortar lining, no sacrificial zinc coatings, and no external cathodic protection, ensuring a maintenance-free pipeline lifecycle spanning over 50 years.
| Nominal OD (mm) | PN 10 Wall (mm) | PN 16 Wall (mm) | PN 25 Wall (mm) | Flow Rate @ 1.5 m/s (L/s) | Pumping Head Loss (m/km) |
|---|---|---|---|---|---|
| 90 | 2.8 | 4.3 | 6.6 | 7.7 | 18.2 |
| 110 | 3.4 | 5.3 | 8.1 | 11.6 | 14.5 |
| 160 | 4.9 | 7.7 | 11.8 | 25.0 | 9.8 |
| 200 | 6.2 | 9.6 | 14.7 | 39.5 | 7.6 |
| 250 | 7.7 | 11.9 | 18.4 | 62.3 | 5.9 |
| 315 | 9.7 | 15.0 | 23.2 | 99.8 | 4.6 |
| 400 | 12.3 | 19.1 | 29.4 | 162.0 | 3.5 |
Because uPVC has an elastic modulus (~3,000 MPa) approximately 70 times lower than steel, water hammer pressure wave velocities in uPVC are significantly lower. A sudden valve closure generates pressure surges roughly 50% lower in uPVC than in ductile iron or steel.
For buried transmission lines (63mm to 400mm), ALFA's integrated elastomeric rubber-ring socket joints provide rapid installation, pressure tightness, and thermal expansion absorption without mechanical thrust couplers.
Contact our Jeddah engineering desk for instant project-specific pricing, technical submittals, and Material Approval Request (MAR) support.
