UPVC Drainage Fittings BS EN 1401 (Supersedes BS 4660 & BS 5481)
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Heavy-duty underground UPVC drainage fittings certified to BS EN 1401 for sewerage and stormwater systems.
Standards & Certifications
Overview
Product introduction and key characteristics
Crown Plastic Pipes / Fittings, a trusted underground fittings supplier in the UAE, produces a complete range of UPVC drainage fittings conforming to BS EN 1401, the standard that supersedes BS 4660 and BS 5481. These heavy-duty fittings are specifically designed for non-pressure underground drainage and sewerage systems, providing reliable watertight connections in buried gravity-fed pipe networks. Manufactured at our Umm Al Quwain facility for exceptional durability and chemical resistance, they ensure long-term performance in the diverse soil and groundwater conditions found across Dubai, Abu Dhabi, and the wider GCC.
Features
Technical advantages and key benefits of this product range
- Full compliance with BS EN 1401 requirements
- High chemical resistance to domestic sewage substances
- Smooth internal bore for superior hydraulic flow
- Robust construction suitable for underground burial
- Tight dimensional tolerances for consistent jointing
- Lightweight and easy to handle during installation
- ISO 9001:2015 certified production at our Umm Al Quwain, UAE facility
- Orange colour coded for underground identification — GCC standard
Applications
Ideal use cases and industries for this product
- Underground domestic drainage systems across the UAE
- Main public sewerage networks in Dubai and Abu Dhabi
- Stormwater and surface water management in the GCC
- Industrial waste drainage in UAE free zones
- Building-to-sewer lateral connections
- Highway and road drainage infrastructure
- Foul water drainage networks
- Municipal infrastructure projects in the Middle East
Fittings & Accessories
Complete range of fittings for this product line

ELBOW 90°
4 sizes available
ELBOW 45°
4 sizes available
SOCKET/COUPLER
4 sizes available
REDUCER BUSH/SOCKET
3 sizes available
ΤΕΕ 87.5°
4 sizes available
Y - 45°/SKEW TEE
4 sizes available
ACCESS CAP/CLEAN OUT
4 sizes available
ACCESS/DOOR ELBOW 90°
4 sizes available
GULLY TRAP A
1 size available
GULLY TRAP B
1 size available
HOPPER TRAP
1 size available
P TRAP
1 size availableInstallation Guidelines
Best practices for optimal performance and longevity
Do's
- ✓Verify all fittings meet BS EN 1401 before installation
- ✓Ensure trench bed is properly levelled and free of sharp stones
- ✓Use approved UPVC solvent cement and cleaner for secure jointing
- ✓Perform pressure or air test on the system before backfilling
Don'ts
- ✗Do not use these fittings for high-pressure water supply
- ✗Do not install fittings with visible damage or cracking
- ✗Avoid incompatible solvent cements or lubricants
- ✗Do not backfill with large rocks or frozen soil
Technical FAQs
Answers to common questions about this product
- Full compliance with BS EN 1401 requirements
- High chemical resistance to domestic sewage substances
- Smooth internal bore for superior hydraulic flow
- Robust construction suitable for underground burial
- Tight dimensional tolerances for consistent jointing
- Lightweight and easy to handle during installation
- ISO 9001:2015 certified production at our Umm Al Quwain, UAE facility
- Orange colour coded for underground identification — GCC standard
- Verify all fittings meet BS EN 1401 before installation
- Ensure trench bed is properly levelled and free of sharp stones
- Use approved UPVC solvent cement and cleaner for secure jointing
- Perform pressure or air test on the system before backfilling
- Do not use these fittings for high-pressure water supply
- Do not install fittings with visible damage or cracking
- Avoid incompatible solvent cements or lubricants
- Do not backfill with large rocks or frozen soil
Technical Documents
Access comprehensive technical catalogues, dimensional specifications, and compliance documentation for UPVC Drainage Fittings BS EN 1401 (Supersedes BS 4660 & BS 5481).
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