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eBay£52.50Visit shop 450mm Solid Top Ductile Iron Round Manhole Cover and Frame B125KN CD 1657 KMB
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B&Q£65.00Visit shop - Clark Drain B125 Ductile Iron Manhole Cover & Frame Round Circular Solid Top Inspection Chamber Hatch Grate Access Panel 450mm
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The Clark-Drain B125 Manhole Cover and Frame is an ideal choice for contractors and homeowners seeking a reliable access point for inspection chambers in residential driveways, pavements, or commercial shopping precincts. This robust ductile iron unit provides a safe, load-bearing solution capable of handling up to 12.5 tonnes while maintaining BSI Kitemark certification for quality assurance. While its heavy-duty construction ensures durability and security, users should note that the significant weight of the ductile iron requires proper heavy-lifting safety protocols during installation.
| Model Part Number | B125 |
|---|---|
| Brand | Clark-Drain |
B125 indicates the cover is tested to withstand a 12.5-tonne load, suitable for driveways and pedestrian areas where cars may pass.
No, this cover is designed for residential driveways and similar off-road areas. Public roads typically require D400 or higher ratings.
No, standard lifting keys for the B125 model must be purchased separately.
The unit provides a clear opening diameter of 450mm.
Yes, the ductile iron is highly resistant to corrosion and typical weather conditions found in outdoor environments.
While technically possible, paint may make the surface slippery and will eventually wear off due to traffic; it is generally not recommended.
The bedding underneath the frame has likely failed. Re-seat the frame using a high-strength, non-shrink grout to ensure total surface contact.
Clear any compacted debris or dirt from inside the lifting keyholes using a screwdriver or wire brush.
Installation should be performed by a professional or someone experienced in groundworks to ensure the frame is perfectly level within the bedding material. Using a high-strength mortar or concrete bedding is essential to distribute the load across the surrounding pavement.
Compatibility relies on matching the clear opening of 450mm to your existing inspection chamber shaft. Regular care involves clearing away dirt or gravel from the frame edge to ensure the cover sits flush. Periodically checking the frame for signs of shifting or movement in the surrounding concrete is recommended to maintain the integrity of the B125 rating.
