Pipe Repair products offer a fast, safe way to seal splits, holes, and corroded sections instantly – often under full system pressure – avoiding the need for expensive and time-consuming network shutdowns.
AquaFast couplings deliver secure, restrained connections for PE pipes. Easily installed in any conditions, needs no support liner, offers visual installation validation, and meets Type 2 end load standards.
Pressure Ratings
WaterWaste Water
355mm to 450mm = 16 Bar
Compatible Pipe Materials
Pipe Materials Caveats
AquaFast Coupling – Large Diameter 355-450mm
Caveat 1
Suitable for: PE80 (MDPE), PE100 (HDPE).
Caveat 2
Due to AquaFast not requiring a support liner, it is only suitable for PE in SDR11, to SDR21 for 355-450mm sizes.
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AquaFast Coupling – Large Diameter 355-450mm
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Designed for Simplified & Dependable Trench Installation
Simple to Install
AquaFast Large Diameter delivers fast, reliable installation in all weather and trench conditions. It provides a practical alternative to electrofusion and butt fusion, using a simple fit-and-forget design with minimal bolts and no internal liner or specialist trench equipment.
Quality
This innovative product is patent-pending and manufactured under BS EN ISO 9001 quality systems, meeting UK and European Water Regulations.
Resists Pull-Out
An enhanced gripping mechanism provides end-load restraint and reliable performance from -20°C to 60°C. AquaFast meets BS EN 12842, ISO 178875 and IGN 4-01-02 Type 2 requirements.
Innovative Design for Oval Pipes
AquaFast incorporates high tolerance for ovality, removing the need for costly and time-consuming re-rounding tools.
Fully Corrosion Protected
WRAS-approved black Rilsan Nylon 11 coating ensures excellent resistance to corrosion, impact, abrasion, weathering and chemicals.
Why Choose AquaFast Large Diameter
Optimised for repair work – No internal restriction, making it ideal for sewage and other demanding applications
Supplied fully assembled – Ready for immediate installation with no pre-assembly required
Reliable in all environments – Suitable for wet, submerged and above-ground pipe connections
No specialist tools required – Installs without a torque wrench or any additional on-site equipment
No support liner needed on common SDRs – Works directly on MDPE (PE80) SDR 11 & 17/17.6 and HPPE (PE100) SDR 11, 17/17.6 & 21
Easy to position – Designed for quick and accurate centralisation on the pipe
Built for long-term performance – Engineered with a 50-year design life expectancy
Reusable system – No spare parts required, enabling multiple installations
Fast product selection – Contractor only needs to identify the PE nominal pipe size to choose the correct fitting
Quick installation – Minimal number of bolts reduces tightening time and effort
Streamlined stockholding – One fitting connects a single nominal pipe size across common SDRs (11 & 17/17.6)
Design Benefits
Innovative Gripping
Enhanced Type 2 end-load restraint provides strong, reliable grip and prevents pipe pull-out during operation.
Positive Stop
Visual confirmation of correct installation through clear metal-to-metal contact between clamp bands.
Corrosion Protection
All cast components coated in Black Rilsan Nylon 11 for exceptional resistance to impact, abrasion, weathering, chemicals and rough site handling.
Centralisation Feature
Multiple centralisation bolts positioned around the product ensure accurate alignment and secure fit during installation
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Downloads
AquaFast Coupling – Large Diameter 355-450mm Downloads
Water
Waste Water
