HDPE Pipes — BS 1972/67 (LDPE)
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LDPE pipes to BS 1972/67 — Class B, C, D — ⅜″ to 4″.
Overview
Product introduction and key characteristics
Crown Plastic Pipes / Fittings manufactures LDPE pipes to BS 1972/67 British Standards in Class B, C, and D pressure ratings. Available in ⅜″ to 4″ (17–114 mm OD), these pipes serve low-to-medium pressure water distribution and irrigation applications across the UAE and GCC. Produced at our Umm Al Quwain facility with ISO 9001:2015 certification.
Features
Technical advantages and key benefits of this product range
- Produced from 100% virgin polyethylene for maximum reliability.
- Contains a minimum of 2.5% carbon black for superior UV resistance.
- Excellent design stress capabilities ranging from PE63 to PE100 material grades.
- Compliance with international standards including ISO 4427, DIN 8074, and EN 12201.
- Safe for potable water supplies and drinking water distribution.
- High design coefficient 'C' of no less than 1.25 for enhanced safety margins.
Applications
Ideal use cases and industries for this product
- Municipal water distribution and potable water supply networks.
- Agricultural irrigation systems, including drip tubing and drip irrigation.
- High-pressure gas network distribution and industrial piping.
- Underground infrastructure requiring trenchless (HDD) installation.
Pipe Specifications
Technical dimensions and parameters for all pipe sizes
BS 1972/67
| Nominal Pipe Size Inch | Outside Diameter | Wall Thickness | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Minimum | Maximum | Class B 6.1 kgf/cm (Bar Approx) | Class C 9.1 kgf/cm (Bar Approx) | Class D 12.2 kgf/cm (Bar Approx) | ||||||||||||
| inch | mm | inch | mm | Minimum | Maximum | Minimum | Maximum | Minimum | Maximum | |||||||
| inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | |||||
| 3/8 | 0.669 | 17.0 | 0.681 | 17.3 | - | - | - | - | 0.087 | 2.2 | 0.098 | 2.5 | 0.110 | 2.8 | 0.122 | 3.1 |
| ½ | 0.835 | 21.2 | 0.847 | 21.5 | - | - | - | - | 0.106 | 2.7 | 0.118 | 3.0 | 0.134 | 3.4 | 0.146 | 3.7 |
| ¾ | 1.047 | 26.6 | 1.059 | 26.9 | 0.091 | 2.3 | 0.102 | 2.6 | 0.134 | 3.4 | 0.146 | 3.7 | 0.169 | 4.3 | 0.185 | 4.7 |
| 1 | 1.315 | 33.4 | 1.327 | 33.7 | 0.118 | 3.0 | 0.130 | 3.3 | 0.165 | 4.2 | 0.181 | 4.6 | 0.213 | 5.8 | 0.232 | 5.9 |
| 1 ¼ | 1.657 | 42.1 | 1.673 | 42.5 | 0.146 | 3.7 | 0.161 | 4.1 | 0.209 | 5.3 | 0.228 | 5.8 | 0.268 | 6.7 | 0.295 | 7.5 |
| 1 ½ | 1.894 | 48.1 | 1.910 | 48.5 | 0.169 | 4.3 | 0.185 | 4.7 | 0.240 | 6.1 | 0.264 | 6.7 | 0.307 | 7.8 | 0.338 | 8.6 |
| 2 | 2.366 | 60.1 | 2.386 | 60.6 | 0.209 | 5.3 | 0.228 | 5.8 | 0.299 | 7.6 | 0.331 | 8.4 | - | - | - | - |
| 3 | 3.488 | 88.6 | 3.516 | 89.3 | 0.307 | 7.8 | 0.339 | 8.6 | 0.441 | 11.2 | 0.484 | 12.3 | - | - | - | - |
| 4 | 4.484 | 113.9 | 4.516 | 114.7 | 0.394 | 10.0 | 0.433 | 11.0 | - | - | - | - | - | - | - | - |
Installation Guidelines
Best practices for optimal performance and longevity
Do's
- ✓Ensure butt-fusion welding is performed using correct temperatures for the specific PE grade.
- ✓Verify the SDR and PN ratings match the intended application's hydrostatic design stress.
- ✓Use pipes with sufficient carbon black content for long-term outdoor UV exposure.
- ✓Follow the MRS guidelines to ensure the pipe meets its 50-year design life at 20°C.
Don'ts
- ✗Do not use non-potable pipes for drinking water distribution.
- ✗Avoid exceeding the maximum allowable hydrostatic design stress specified for the material.
- ✗Do not install pipes that have deep scratches or physical damage exceeding standard tolerances.
- ✗Avoid using materials that do not conform to the required design coefficient 'C' for pressure safety.
Technical FAQs
Answers to common questions about this product
- Produced from 100% virgin polyethylene for maximum reliability.
- Contains a minimum of 2.5% carbon black for superior UV resistance.
- Excellent design stress capabilities ranging from PE63 to PE100 material grades.
- Compliance with international standards including ISO 4427, DIN 8074, and EN 12201.
- Safe for potable water supplies and drinking water distribution.
- High design coefficient 'C' of no less than 1.25 for enhanced safety margins.
- Ensure butt-fusion welding is performed using correct temperatures for the specific PE grade.
- Verify the SDR and PN ratings match the intended application's hydrostatic design stress.
- Use pipes with sufficient carbon black content for long-term outdoor UV exposure.
- Follow the MRS guidelines to ensure the pipe meets its 50-year design life at 20°C.
- Do not use non-potable pipes for drinking water distribution.
- Avoid exceeding the maximum allowable hydrostatic design stress specified for the material.
- Do not install pipes that have deep scratches or physical damage exceeding standard tolerances.
- Avoid using materials that do not conform to the required design coefficient 'C' for pressure safety.
Technical Documents
Access comprehensive technical catalogues, dimensional specifications, and compliance documentation for HDPE Pipes — BS 1972/67 (LDPE).
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