MDPE Water Pipe
Technical Data Sheet
Document Reference: TDS-MD-PP-001
Issue Date: February 2026
Range: MDPE Potable Water Pipe
Product Description
Kalsi MDPE (Medium Density Polyethylene) pipe is designed for underground potable water supply. WRAS approved for use with drinking water, the flexible blue pipe is easy to handle and resistant to ground movement. Suitable for service connections from mains to properties.
Pipe Dimensions
PE80 (SDR11)
| Nominal Size | OD | Wall | ID | Weight |
|---|---|---|---|---|
| 20mm | 20mm | 2.0mm | 16mm | 0.12 kg/m |
| 25mm | 25mm | 2.3mm | 20.4mm | 0.17 kg/m |
| 32mm | 32mm | 3.0mm | 26mm | 0.28 kg/m |
| 50mm | 50mm | 4.6mm | 40.8mm | 0.68 kg/m |
| 63mm | 63mm | 5.8mm | 51.4mm | 1.07 kg/m |
Pressure Rating
- PE80: 12.5 bar at 20°C
- PE100: 16 bar at 20°C (on request)
Material Specification
| Property | Specification |
|---|---|
| Material | MDPE PE80 |
| Standard | BS EN 12201 |
| Colour | Blue (black stripe optional) |
| Density | 0.941 g/cm³ |
| MRS | 8.0 MPa |
Physical Properties
| Property | Value | Test Method |
|---|---|---|
| Melt Flow Rate | 0.8-1.2 g/10min | ISO 1133 |
| Tensile Strength | ≥15 MPa | ISO 527 |
| Elongation at Break | ≥350% | ISO 527 |
| Resistance to slow crack growth | >500 hours | ISO 13479 |
Available Sizes
Coils
| Size | 25m Coil | 50m Coil | 100m Coil |
|---|---|---|---|
| 20mm | ✓ | ✓ | ✓ |
| 25mm | ✓ | ✓ | ✓ |
| 32mm | ✓ | ✓ | ✓ |
| 50mm | - | ✓ | - |
| 63mm | - | ✓ | - |
Straight Lengths
| Size | 6m Lengths |
|---|---|
| 50mm | ✓ |
| 63mm | ✓ |
Installation
Burial Depth
- Minimum cover: 750mm (below frost line)
- Under roads: Minimum 900mm
- In duct: As per water authority requirements
Bedding
- Granular bedding: 100mm minimum
- Backfill: Selected material, no sharp stones
Jointing
- Compression fittings (WRAS approved)
- Electrofusion (larger sizes)
Approvals & Compliance
- ✓ WRAS approved for potable water
- ✓ BS EN 12201 compliant
- ✓ Water authority approved
- ✓ UK manufactured
Storage
| Condition | Requirement |
|---|---|
| UV exposure | Store under cover or in black wrapping |
| Temperature | -40°C to +40°C |
| Stacking | Support coils, avoid crushing |
| Duration | Check markings - use oldest first |
Applications
Suitable For
- Mains to property connections
- Cold water supply underground
- Irrigation systems
- Drinking water
Not Suitable For
- Hot water
- Above ground exposed applications
- Gas (use yellow PE)
- Drainage (use PVC-U)
Guarantee
Product Guarantee: 25 years against manufacturing defects
Subject to correct installation per guidelines.
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