• Architectural integration: The tray depth of 75 mm allows for the insertion of the same material as the surrounding pavement, making the manhole cover almost invisible.
• Certified resistance: Compliance with class C250 ensures safe load-bearing in parking areas and moderate vehicle transit zones.
• Mechanism protection: The blind-bottom slots prevent the accumulation of debris and dirt inside the lifting points, facilitating opening over time.
• Structural robustness: The use of ductile iron GJS-500-7 guarantees high resistance to mechanical stress despite the recessed tray design.
• Total traceability: Indelible markings on each piece ensure compliance with regulatory requirements during testing and inspection phases.

Choosing the h638_183 model means opting for a product that does not compromise between aesthetics and safety. It is the correct choice for designers who need access to sub-services that disappears into the pavement, while ensuring a clear opening of over 60 cm to facilitate the passage of technicians. The weight of 65 kg and the height of 90 mm provide the stability necessary to prevent noise or rocking under vehicle transit.

This manhole cover finds its ideal placement in historic squares, residential centers, and pedestrian areas where stone or interlocking block paving must be preserved without visual interruptions. It is particularly suitable for multi-storey car parks, rest areas, and lateral roadsides (drainage channels) where class C250 is the minimum safety requirement. The structure without an external flange allows for flush-to-wall installation or in tight spaces, facilitating positioning in urban renovation contexts.

What is the useful depth for tray filling?

The internal tray has a depth of 75 mm, the optimal size for housing screeds and surface finishes such as porphyry, tiles, or asphalt, guaranteeing the resistance provided for class C250.

Can this model be used in areas trafficked by heavy vehicles?

The model is certified in class C250, suitable for car parks and areas with light vehicle transit. If the installation area is subject to heavy intense or motorway traffic, it is recommended to check the version prepared for class D400.

Does the frame without an external flange affect installation?

The frame without a flange is designed to reduce the external footprint, allowing for more precise laying near curbs or walls; however, it requires accurate sealing with high-performance cement mortars to ensure maximum stability.