• Stability and Silence: Thanks to the three-point seating of each triangular element, the manhole cover remains perfectly motionless. This eliminates noise pollution in urban areas and reduces mechanical wear on the edges.
• Wide Clear Opening: The clear opening of 700x1060 mm allows for easy inspection of complex technological shafts, facilitating the entry of operators and bulky equipment.
• Sequential Opening: The system mandates sequential opening starting from the master cover, preventing unauthorized manipulation of the slave modules.
• Protection against Debris: The locking system is protected by a recessed cap that shields the latch from dust, mud, and road debris, keeping the mechanism always efficient.
• Safe Maneuverability: Despite the high total weight, the division into 4 modules makes each individual cover manageable. The 90° block eliminates the risk of accidental closures during work.

The h638_104 manhole cover is suitable for main roads, logistics hubs, port docks, and airport areas where cars and heavy vehicles regularly transit. It is the ideal solution for covering large technical compartments dedicated to telecommunications, primary sewage networks, or hydraulic maneuver chambers, guaranteeing a loading capacity of 40 tons and superior protection against unauthorized access.

Choosing this model means opting for the definitive modular solution in terms of road stability. While large single-cover manholes tend to become unstable and noisy, the h638_104 4-triangular-cover system distributes stress optimally. The quality of the ductile iron and the removable hinge system guarantee an exceptional operational life, reducing maintenance and replacement costs in the long term.

What is meant by "Master Cover" and "Slave Cover"?

The master cover is the only one equipped with a key lock. Once opened, it unlocks the locking plate of the adjacent slave cover, allowing all modules to be opened in sequence. This system ensures that none of the modules can be lifted individually without the master key.

Is it possible to remove the covers to clean the frame?

Yes, the articulation appendages are designed to keep the cover constrained during normal use, but allow for the complete removal of each individual triangular element once slid out of the hinge housing.

Is the surface safe for motorcyclists?

Absolutely yes. The surface is equipped with uniformly distributed anti-slip reliefs, designed to ensure tire grip and facilitate the runoff of rainwater, minimizing the risk of slipping.