• Protection against odors: The "U" groove design allows for the creation of an effective seal against odors from the sewer network, improving the healthiness of the surrounding environment.
• Anti-dislodgement safety: The interlocking locking system and the elastic tabs prevent accidental removal of the cover, ensuring stability even under mechanical stress.
• Ease of maintenance: The pre-arranged external compartment allows for quick opening of the manhole cover using a simple lever, optimizing inspection times.
• Non-slip grip: The embossed surface is designed to ensure high grip, reducing the risk of slipping for vehicles and pedestrians in case of rain.
• Stable anchoring: The continuous perimeter flange and reinforcing ribs distribute the loads on the foundation, preventing cracks in the surrounding road surface.

The use of the h638_197 manhole cover is recommended for sidewalk edges, parking areas and car parks where vehicle traffic is frequent but at moderate speeds. Thanks to class C250, it is the optimal solution for rainwater drainage channels along urban roadways and for access to technological and sewer networks located in light and medium traffic areas. Its square shape makes it perfect for integration into concrete or asphalt pavements.

Choosing this model means focusing on a certified and technologically advanced product, capable of combining the robustness of ductile iron with the practicality of the automatic closure system. It is the correct choice for designers who require an airtight and safe manhole cover, capable of withstanding higher loads than standard B125 models, while ensuring simplified management thanks to the lever release points and compatibility with the main lifting systems.

What is the difference between class B125 and class C250 for this manhole cover?

Class C250 guarantees resistance to a test load of 25 tons, making the manhole cover suitable not only for pedestrian zones, but also for parking areas and roadside drainage channels, where a B125 model (12.5 t) would not be sufficiently high-performing.

How does the automatic closure system work?

The cover is equipped with shaped elastic tabs which, during the closing phase, mechanically lock with the lugs on the internal edge of the frame. This ensures that the cover remains locked in place without oscillation or dislodgement.

Is a specific material required to achieve airtightness?

To activate the odor-proof function, it is necessary to fill the "U" seat in the frame with fine sand, grease or equivalent inert materials before positioning the cover, thus creating a physical seal against sewer gases.