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| PRODUCTS > |
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| Stackable Ring Chambers |
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Carriageway Fortress
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150mm high rings-75mm top rings available
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1310mm x 610mm
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Suitable for carriageway installations
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Tested & Certified up to EN124 E600
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Extensivley test at the Transport Research Laboratory to replicate 20 years of traffic and 500,000 truck wheel passes
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tested to vertical load of 670kn free standing (no backfill)
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Uniquley designed to withstand side loading pressures
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Options include ductile iron and concrete covers, bottom plates and floors, step irons, cable bearers and pre drilled duct entries
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Footway Fortress
- Sizes: 445mm x 445mm - 600mm x 445mm -
- 600mm x 600mm - 915mm x 445mm
- 915mm x 600mm - 915mm x 915mm
- 150mm stackable rings
- Suitable for footpaths and verges from EN124 A15 to EN124 C250 applications
- No concrete backfill required to meet loading measuremnets in applications up to EN124 C250
- Tested and certified to withstand over 400kn vertical load (not certified for use in carriageway situations)
- Options include ductile iron and concrete covers, bottom plates and floors, step irons, cable bearers and pre drilled duct entries
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Fortress Utility Rings
- Sizes: 300mm x 300mm & 600mm x 450mm
- 150mm ring sections
- Optional base ring with pre cut entries for dropping over joints or pre installed plant
- Tested and certified for EN124 B125 applications
- Top ring has height adjustment bolts to accommodate surface level gradients
- Options include HDPE, ductile iron & concrete covers, bottom plates, floors, cable bearers and pre drilled duct entries
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