Description
upvc pipe 4″ SDR41
Euro Gulf local Manufacturer Suppliers in Karachi Contact 0321-2248975 ASTM uPvc pipes sdr-41, Drain sewer ventilation
What is Saudi Arab upvc pipe 4″ SDR41 ?
🔧 1. Product Overview
Euro Gulf uPVC Pipe 4″ SDR-41 is a non-pressure plastic pipe used mainly in:
- Drainage systems
- Sewerage networks
- Vent (air release) systems
It is manufactured from un plasticized polyvinyl chloride (uPVC) and follows ASTM SDR series standards.
🧱 2. Material & Construction Saudi Arab upvc pipe 4″ SDR41
- Material: uPVC (rigid PVC)
- Color: Grey (standard for drainage pipes)
- Structure: Smooth internal surface
- Type: Rigid, lightweight pipe
Properties:
- Corrosion resistant
- Chemical resistant (ideal for wastewater)
- UV resistant (for outdoor use)
- Long service life
📊 3. Technical Specifications (4″ SDR-41)
| Feature | Specification |
|---|---|
| Nominal Size | 4 inch (110 mm approx) |
| Outer Diameter | 114.3 mm |
| SDR | 41 |
| Wall Thickness | ≈ 2.9 – 3.0 mm |
| Standard | ASTM D2241 (SDR series) |
| Pressure Class | Low / Non-pressure (gravity flow) |
| Length | 6 meter standard |
| Joint Type | Solvent weld or Rubber ring |
| Pipe Series | S = 20 |
👉 SDR means:
Standard Dimension Ratio = Diameter / Wall Thickness
Higher SDR → thinner wall → lower pressure capacity.
⚙️ 4. What is SDR-41?
- SDR-41 pipes have thin wall thickness
- Designed for:
- Gravity flow systems
- Not high-pressure systems
Equivalent:
- Close to Class B / Sewer pipe category
- Sometimes compared with Schedule 40 (light duty)
🔗 5. Jointing System
A. Solvent Joint (S/J)
- Uses uPVC solvent cement
- Permanent leak-proof joint
- Used in:
- Indoor drainage
- Concealed pipelines
B. Rubber Ring Joint (R/J)
- Push-fit system with gasket
- Allows slight movement
- Used in:
- Underground sewer lines
- Long pipelines
👉 Both joint types are commonly available in SDR-41 pipes.
🚰 6. Usage & Applications
🏠 A. Drainage (Waste Water)
- Bathroom lines (wash basin, shower)
- Kitchen waste pipes
- Floor drains
🚽 B. Sewer System
- Underground sewer pipelines
- Soil pipes from toilets
- Septic tank connections
🌬️ C. Ventilation System
- Vent pipes to roof
- Removes sewer gases
- Prevents vacuum in pipelines
🌧️ D. Rainwater System
- Roof drainage
- Downpipes
👉 These pipes are ideal for SWV (Soil, Waste & Vent) systems.
⚡ 7. Performance Characteristics
✔ Advantages
- Smooth inner surface → less blockage
- Lightweight → easy installation
- Long life (50+ years typical)
- Resistant to chemicals in sewage
- Cost-effective
✔ Hydraulic Benefit
- Low friction → better flow
- No scaling like metal pipes
⚠️ 8. Important Limitations
- ❌ Not suitable for high-pressure water supply
- ❌ Not for hot water systems
- ✔ Only for gravity drainage systems
🧠 9. Simple Understanding
👉 Euro Gulf 4″ SDR-41 uPVC Pipe =
- A light-duty drainage pipe
- Used for sewer, waste, and vent lines
- Installed using solvent or push-fit joints
- Designed for gravity flow (not pressure)
🏗️ 10. Typical Use in Building
Example in a house:
- 4″ pipe → Main soil pipe from WC
- Connected to:
- 110 mm fittings (tees, elbows)
- Underground sewer line
- Vent pipe continues to roof
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