Multi 4 Barrier Boundary Box

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The Multi Barrier Boundary Box 4 from PE Pipeline Specialists provides a robust and fully compliant solution for below-ground water metering installations in contaminated ground conditions. Engineered to BS 8588:2017 and BS 5834 standards, it offers assured performance, watertight integrity and long-term protection for potable water systems.

Manufactured from durable recycled polypropylene and built to withstand Grade C 5-tonne loading, the Multi Barrier Boundary Box 4 is designed for reliability in challenging environments. Its sealed Class 1 configuration ensures complete watertightness, while an unsealed Class 2 option provides flexibility where contamination control is not required.

Key benefits

✅ Fully compliant with BS 8588:2017 for contaminated ground applications
✅ Grade C load bearing and frost-protected to BS 5834-1:2017
✅ Four ¾” BSP meter outlets and a 2” BSP inlet for multi-connection capability
✅ Quarter-turn spherical shut-off valve with long key for easy operation
✅ Integrated check valve to BS EN 13959:2004 Family E Type B standard
✅ Manufactured from robust, recycled polypropylene for lower environmental impact
✅ Adjustable height range of 590–720mm for on-site installation flexibility
✅ Supplied with watertight lid marked ‘W’ and fitted with a metal detector plate

The Multi Barrier Boundary Box 4 is ideal for utilities, developers and contractors requiring reliable boundary boxes in contaminated or high-risk ground conditions. Each unit is factory-assembled, pressure-rated to 16 bar, and designed for quick installation with minimal maintenance.

Our technical team can advise on the right configuration for your project, whether you are specifying for new developments or upgrading existing networks.