Composite manhole covers are increasingly specified where corrosion resistance, electrical insulation and long service life are required. This is particularly common around street lighting columns, traffic signal bases and utility chambers where traditional metallic covers can present long term maintenance or safety issues.
The Clark Drain CD 265/SF introduces this material type into the solid top range, providing a practical alternative to galvanised or cast iron covers in suitable locations.
What the CD 265/SF Is Designed For
The CD 265/SF is a solid top composite manhole cover rated to B125.
It is intended for:
- Street lighting access chambers
- Traffic signal and control installations
- Pedestrian areas
- Light vehicle access zones
The non ferrous composite lid avoids issues associated with corrosion, chemical exposure and electrical conductivity, while the galvanised mild steel frame provides the structural support required at ground level.
Material and Construction
The cover itself is manufactured from a high strength composite material. This offers several practical advantages in service:
- No rusting or surface degradation
- Resistance to chemicals and salts
- Non conductive properties for electrical environments
- Reduced long term maintenance
The unit is supplied with a galvanised steel frame to ensure stable bedding and compatibility with standard chamber construction.
Loading and Security
Rated to B125, the cover is suitable for pedestrian and light vehicle traffic when installed correctly.
The lid is secured using locking screws and incorporates integral keyholes to suit CD 553 and CD 553L lifting keys. This allows controlled access while reducing the risk of unauthorised removal.
A frame skirt with fixing holes is included to aid secure attachment to the chamber, supporting correct installation and long term stability.
Where Solid Top Composite Covers Make Sense
This type of cover is not a replacement for recessed or decorative solutions. It is a functional product designed for specific applications.
Composite solid top covers are typically specified where:
- Surface finish is not being infilled
- Electrical safety is a consideration
- Corrosion resistance is required
- Access is periodic rather than frequent
In these scenarios, composite offers a clear advantage over traditional materials.
Summary
The Clark Drain CD 265/SF expands the solid top range to include a composite option suited to modern utility and infrastructure requirements.
With B125 loading, corrosion resistance and secure lifting and locking features, it provides a low maintenance access solution for pedestrian and light vehicle environments where non conductive materials are preferred.
