Resintuff Fiber Manhole Cover, 450mm x 600mm, B125 Load Rated

Resintuff Fiber Manhole Cover

The Resintuff Fiber Manhole Cover serves as a high-strength, lightweight alternative to traditional cast iron lids for drainage and utility inspection chambers. Engineered from Fiber Reinforced Plastic (FRP), this rectangular access solution provides a 450mm x 600mm clear opening suitable for medium-duty traffic areas. This composite construction ensures the unit remains unaffected by corrosive sewer gases or environmental moisture, maintaining structural integrity over long-term deployments in residential and commercial infrastructure projects.

Built for the Job

Contractors specify these composite lids to solve two primary site issues: manual handling safety and theft prevention. Unlike heavy cast iron, this material significantly reduces the risk of back injuries during installation or routine maintenance inspections. Because the fiber-reinforced material has zero scrap value, it effectively eliminates the risk of theft common in public or unsecured job sites. The surface features a molded anti-slip pattern to ensure pedestrian safety even in wet conditions, making it suitable for sidewalks, driveways, and parking areas where medium-duty load bearing is required.

• Installation in residential driveways and private parking areas for light vehicle access.

• Securing municipal drainage systems and sewage inspection chambers in public walkways.

• Covering underground utility ducts for telecommunications or electrical cabling infrastructure.

Product Highlights

Corrosion Resistance

The thermoset resin material withstands continuous exposure to hydrogen sulfide and other aggressive chemicals found in sewage environments.

Load Performance

• B125 Load Class rating supports up to 12.5 tonnes of gross weight.
• Tested for deflection and permanent set under industrial load conditions.

Theft Deterrence

Non-metallic construction ensures the lid cannot be sold for scrap metal, reducing replacement costs for facility managers.

Technical Specifications

What’s Included

• 1 x 450mm x 600mm Fiber Composite Lid

• 1 x Matching FRP Perimeter Frame

On-Site & Workshop Notes

• Ensure the supporting frame is fully bedded in high-strength mortar to prevent movement under wheel loads.

• Verify that the clear opening of the chamber matches the 450mm x 600mm internal dimensions of the frame before setting.

• The lightweight nature of this composite lid allows for single-person removal using standard lifting keys or pry bars.

• Store frames on flat surfaces prior to installation to prevent warping before they are set in concrete.