Irrigation Pipe Guide for Saudi Farms
Irrigation pipe on a Saudi farm splits into two jobs: pressurised supply that carries water to the field, and sub-soil drainage that manages the water table. uPVC pressure pipe (Class 4 & 5) handles distribution and mains; perforated uPVC pipe handles drainage and dewatering. Both resist corrosion in saline soil. 4B Factory manufactures the full range in Al-Kharj, in the heart of a major farming region.
Pressure
Supply Pipe vs Drainage Pipe
An irrigation system has two pipe roles. Supply pipe carries pressurised water from the source — well, reservoir or mains — out to the field and the emitters. This is pressure pipe, sized to the flow and rated by class. Drainage pipe does the opposite job: it manages excess water in the soil, lowering the water table and removing salts that build up under irrigation.
Both matter on a Saudi farm. Pressurised uPVC supplies the water efficiently, and perforated uPVC drainage protects root zones and soil structure from waterlogging and salinity — a real risk in the Kingdom's arid, saline ground.
Irrigation Pipe by Role
Match each part of the irrigation system to the right pipe type, class and size. Confirm exact ratings against the product datasheet.
| Role | Pipe, Class & Size |
|---|---|
| Main Supply Line | uPVC pressure · Class 4 & 5 (10 & 16 Bar) · 90–315 mm |
| Field Distribution | uPVC pressure · Class 4 · 50–160 mm |
| Sub-Soil Drainage | Perforated uPVC · slotted wall · 75–315 mm |
| Salinity / Dewatering | Perforated uPVC · custom slot pattern · 110–500 mm |
| Cable Protection (Pumps) | uPVC duct · SAS 254/255 · 20–63 mm |
| Bends, Tees & Reducers | Fabricated / custom fittings · to system spec |
Specifying a Farm Irrigation System
Supply Pressure
Match the class to the working pressure — Class 4 (~10 Bar) for most fields, Class 5 (~16 Bar) for higher heads. See pressure pipes.
Flow & Diameter
Size the main and distribution lines to the flow demand — larger diameter for the main, smaller for field laterals.
Sub-Soil Drainage
Add perforated pipe to control the water table and flush salts from the root zone. See perforated pipes.
Soil & Salinity
uPVC does not corrode in saline soil, and perforation patterns are matched to soil type and water table.
Fittings & Connections
Tees, bends and reducers connect mains to laterals — see customized fittings.
Standards & Quality
uPVC pressure pipe follows SASO ISO 1452 / SAS 14/15 — confirm the standard. See the full range.
Irrigation Pipe by 4B Factory
Pressure supply, perforated drainage and fittings for farm irrigation, manufactured in Al-Kharj to Saudi Standards. Open any product for full specifications.
Pressure Supply Pipe
uPVC pressure pipe for irrigation mains. Class 4 & 5, 50–315 mm.
More Information →
Planning a Farm Irrigation System?
Send your field size, water source, flow and soil conditions and 4B Factory will recommend the right pressure and perforated pipe, class and diameter, manufactured in Al-Kharj — in the heart of the farming region.
Frequently Asked Questions
uPVC pressure pipe (Class 4 & 5) is the standard for irrigation supply and mains in Saudi Arabia. It is corrosion-free in saline soil, and perforated uPVC pipe is used alongside it for sub-soil drainage and salinity control.
Supply pipe is pressurised and carries water to the field — uPVC pressure pipe rated by class. Drainage pipe is perforated and removes excess water from the soil, lowering the water table and flushing salts from the root zone.
Perforated pipe lets groundwater enter through slots in the wall, draining waterlogged soil and flushing salt build-up — a common problem under irrigation in arid, saline Saudi conditions. It protects root zones and soil structure.
Main supply lines are typically 90–315 mm and field distribution 50–160 mm, sized to the flow demand. Sub-soil drainage runs 75–315 mm. The exact size depends on field area, flow and head.
Yes. 4B Factory is based in Al-Kharj, a major farming region, and supplies uPVC pressure and perforated irrigation pipe factory-direct across the Kingdom, with standards documentation.
Request Irrigation Pipe for Your Farm
Send your field size, water source, sizes, class and quantities for a factory-direct quotation with standards documentation. Call, WhatsApp, or email info@4bfactory.com.