PVC Well Casing and Borewell Pipe for Agricultural Wells in Saudi Arabia
A Saudi agricultural borewell typically needs two pipe types: solid ASTM Schedule 40 or 80 PVC casing pipe to seal the borehole above the water table, and perforated uPVC screen pipe within the water bearing zone. 4B Factory manufactures both from its Al-Kharj plant, supplying farms across the Qassim agricultural belt and beyond.
Why PVC Is Used for Well Casing
Steel casing can corrode in the saline and mineral rich groundwater common across Saudi Arabia's agricultural regions, which shortens the working life of a well and can introduce corrosion by products into the water drawn from it. PVC casing does not corrode, resists the chemical conditions found in most groundwater, and is significantly lighter to handle and install on site than steel of an equivalent diameter.
This guide covers casing and screen pipe as a distinct topic from general farm irrigation distribution, which is covered in 4B Factory's irrigation pipe guide for Saudi farms.
Casing Pipe vs Screen Pipe: The Two Parts of a Well
A borewell is not lined with a single continuous pipe type. The section above the water bearing zone is sealed with solid casing pipe, while the section within the water bearing zone uses perforated screen pipe that lets groundwater enter while filtering out sediment.
| Section | Pipe Type | Role |
|---|---|---|
| Above the water table | Solid ASTM Schedule 40 or 80 PVC casing pipe, half inch to 8 inch | Seals the borehole wall, prevents collapse and keeps surface contamination out of the well |
| Water bearing zone | Perforated uPVC screen pipe, 75 to 500 mm, straight or staggered pattern | Allows groundwater to enter the well while filtering sediment and fine material |
The depth of the water bearing zone, and therefore the split between casing and screen, is determined by the site's hydrogeological survey, not by the pipe supplier. Confirm this against the well driller's own report before ordering.
Choosing Casing Pipe Schedule and Size
Schedule 40 and Schedule 80 casing pipe differ in wall thickness and pressure and collapse resistance, which matters more on a deeper well under greater ground pressure. For a full comparison of the two, see 4B Factory's Schedule 40 vs Schedule 80 guide. Casing diameter is set by the drilling rig and pump size the well is designed around, so confirm this with the driller before specifying pipe.
Planning a borewell?Send your casing schedule, screen size and delivery location for a factory direct quotation from Al-Kharj.
Request a QuoteSpecifying a Borewell for a Qassim Farm
Qassim's agricultural belt is one of the largest users of well casing and screen pipe in the Kingdom, supporting farm water distribution across the region. A typical specification pairs Schedule 40 or 80 casing above the water table with a perforated screen section sized to the aquifer, then connects to Class 4 or 5 pressure pipe for surface distribution once water reaches the pump. See 4B Factory's Qassim location page for the wider product range supplied to the region.
How 4B Factory Supplies Well Casing and Screen Pipe
- ASTM D 1785 and D 2241 casing. Schedule 40, 80 and 120, half inch to 8 inch, manufactured at the Al-Kharj plant.
- Perforated uPVC screen pipe. Straight and staggered perforation patterns, 75 to 500 mm, with custom patterns available.
- Factory direct pricing. No distributor margin on farm or multi well project orders.
- Kingdom wide delivery. Regular delivery to Qassim and other agricultural regions from Al-Kharj.
Related Reading and Products
PVC ASTM Standard Pipes
Schedule 40, 80 and 120, half inch to 8 inch.
Perforated uPVC Pipes
Straight and staggered perforation, 75 to 500 mm.
Irrigation Pipe Guide for Saudi Farms
Supply and drainage pipe for farm distribution once water is at the surface.
Frequently Asked Questions
Casing pipe is solid and seals the borehole above the water table. Screen pipe is perforated and sits in the water bearing zone, letting groundwater enter while filtering out sediment.
PVC does not corrode in saline or mineral rich groundwater, which is common across Saudi Arabia's agricultural regions, and it is significantly lighter to handle on site than steel casing of an equivalent diameter.
Schedule 80 has a thicker wall and greater pressure and collapse resistance, which matters more on a deeper well under greater ground pressure. Confirm the correct schedule against the well driller's report before ordering.
4B Factory supplies perforated uPVC screen pipe from 75 to 500 mm, in straight or staggered perforation patterns. The correct size depends on the well's aquifer characteristics and pump capacity.
Yes. Qassim's agricultural belt is one of the largest users of well casing and screen pipe 4B Factory supplies, delivered factory direct from the Al-Kharj plant.
Request a Quote for Well Casing and Screen Pipe
Send your casing schedule, screen size, quantities and delivery location for a quotation. Call, WhatsApp, or email info@4bfactory.com.