Cast iron manhole cover AQUAFIX DN 800, class D 400 104105

Heavy loads and durability in sewerage infrastructure

This element of urban and industrial infrastructure is designed for operation under conditions requiring resistance to extreme pressures. As a manhole cover with load class D 400, it can withstand a force of up to 40 tons (400 kN), making it the standard for areas where heavy vehicles such as trucks, buses, or construction machinery operate. Unlike lighter solutions intended for sidewalks or passenger car parking, this model guarantees safety even on public roads, transshipment yards, or airports.

Application and construction for large-diameter sewers

The product is dedicated to installation in sewerage systems where a large inspection opening diameter is required. The nominal diameter DN 800 allows free access to the interior of the pipeline for technical personnel and cleaning equipment. The circular shape of the cover not only facilitates installation and rotation of the element during maintenance work but also optimizes the distribution of forces acting on the cast iron structure.

The material – cast iron – ensures high resistance to corrosion and mechanical damage resulting from road traffic. The entire unit weighs approximately 450 kg, which is typical for this type of component with such high load-bearing capacity; this mass stabilizes the manhole cover in its setting, minimizing the risk of displacement or noise caused by passing vehicles.

Key features and operating conditions

• Class D 400 – ideal for public roads, truck parking lots, and industrial areas; protects the installation from damage by heavy road traffic.
• Diameter DN 800 – provides a wide access opening essential for inspections and cleaning of large sewer channels.
• Cast iron material – guarantees longevity in difficult atmospheric and underground conditions.
• Circular shape – a standard solution facilitating installation and preventing elements from falling into the channel at an angle.

Installation of this manhole cover requires proper preparation of the concrete or asphalt bedding to evenly distribute the load across the entire frame surface. Thanks to its construction, the product meets rigorous standards regarding road safety, eliminating the risk of failure under the influence of dynamic impact forces. This is a functional solution designed for multi-year operation without the need for frequent repairs or replacements. It is worth noting that this element is characterized by a nominal diameter of DN 800 mm and a load class of D 400 (equivalent to 40 tons), which, combined with a weight of approximately 450 kg, makes it a suitable choice for sewerage systems exposed to heavy road traffic.