Slotted PVC per RDA for lowering underground water table. Distinct from perforated (round-hole) drainage.
Product photos from ALFA assets and supporting catalogue imagery for this family — for visual reference during specification and RFQ.
ALFA PQD documents Slotted PVC per RDA: slot widths 1 / 1.1 / 1.5 / 2 mm; rows 4, 6, 8; straight or staggered pattern — for lowering underground water table. Perforated (round holes) is a separate product.
| Type | Slotted PVC (RDA) |
|---|---|
| Slot widths | 1 / 1.1 / 1.5 / 2 mm |
| Rows | 4, 6, 8 |
| Pattern | Straight or staggered |
| Purpose | Lowering underground water table |
| Related | Perforated (round holes) — separate page |
Slotted pipes use longitudinal slots rather than round perforations. ALFA documents this as Slotted PVC per RDA for groundwater table control.
For round-hole subsoil drainage see Perforated Drainage Pipes.
Exact pipe OD, wall and slot layout for a project should be confirmed with ALFA — dimensional wall tables were not cleanly extracted for public republication.
Exact configuration, stock availability and project-specific technical requirements should be confirmed with ALFA AL-ARABIA against the applicable technical documentation.
| Parameter | Documented value |
|---|---|
| Product | Slotted PVC per RDA |
| Slot width options | 1 / 1.1 / 1.5 / 2 mm |
| Number of rows | 4, 6, 8 |
| Row pattern | Straight or staggered |
| Application noted | Lowering underground water table |
Slotted uses slots; perforated uses round holes — separate ALFA products.
1, 1.1, 1.5 and 2 mm.
4, 6 or 8.
Straight or staggered.
Lowering underground water table.
Confirm carrier pipe dimensions with ALFA for the order.
/products/pvc-perforated-drainage.html
Documented as Slotted PVC per RDA in ALFA PQD.
Standard / designation, sizes, quantities, jointing preference, project location, delivery date, and any inspection or submittal needs.
Yes. ALFA AL-ARABIA manufactures at 3rd Industrial City, Jeddah, KSA and holds Saudi Aramco Vendor Code #10116102.
Use the Upload BOQ page or Request Quotation form linked from this page.
ALFA sales/engineering: +966 50 183 5126 or sales@alfaalarabia.co.
Contact our Jeddah engineering desk for instant project-specific pricing, technical submittals, and Material Approval Request (MAR) support.
Use these resources for design methodology and submittals. Confirm ALFA sizes, ratings, and availability for your project.
PVC Slotted Drainage Pipe · Standard context: Project specification. Documentation listed below is fulfilled on request through ALFA’s technical desk.
