• Special load capacity: The F900 certification allows for the safe transit of aircraft and heavy industrial vehicles, preventing catastrophic structural failures.
• Active safety locking: The elastic appendages secure the cover to the frame, preventing accidental lifting due to vibrations or air depressions.
• Hermeticity against miasmas: The internal "U" seat allows for the isolation of the sewage network through mechanical sealing, improving the healthiness of the working environment.
• Anchoring stability: The continuous perimeter flange and holes for anchor bolts ensure a monolithic connection with the foundation concrete.
• Ease of inspection: The sized external compartments and closed-bottom slots allow for rapid opening with standard levers, protecting attachment points from debris.

The use of the h638_141 manhole cover is suitable for airport runways, port quays and container handling yards subject to extremely high axle loads. It is a fundamental component for managing technological and sewage networks in heavy industrial plants and logistics centers where operational continuity is linked to the robustness of the flooring. Thanks to its superior resistance, it is perfect for areas subject to maneuvers by special heavy vehicles requiring a certified Class F900.

Choosing this product is the correct decision when it is necessary to ensure the maximum longevity of the infrastructure under extreme load conditions. With a weight of 124 kg and a maximum seating depth, this manhole cover is preferable to standard models for its ability to resist violent dynamic stresses without rocking. It represents the optimal choice for managers of critical infrastructures who require a product compliant with the EN 1563 standard, capable of combining anti-slip safety, hermeticity and automatic closure.

What is the actual load capacity of Class F900?

Class F900 is the highest category provided for road manhole covers and certifies a resistance to a test load of 900 kN (approximately 90 tons). It is the mandatory standard for airports and port areas with transit of exceptional loads.

How is the odor-tight seal guaranteed?

The system uses a "U"-shaped seat inside the frame. When this groove is filled with sand or suitable grease, the coupling with the cover creates a seal that prevents the escape of gases and bad odors from the shaft.

Is it possible to include customized lettering on the cover?

Yes, the square cover has a dedicated space specifically designed for inserting company logos or service identification lettering (e.g., Waterworks, Sewerage, Electricity), facilitating the mapping of underground services.