Cast iron covers

Cast iron covers - solid solutions for underground infrastructure

At Onninen we specialise in supplying high-quality cast iron covers.   Our products provide durable protection for manholes and underground installations.   We offer a wide range of covers adapted to different needs. They are essential in sewage and water supply systems. They are also used in telecommunications and energy infrastructure.

Cast iron covers are characterized by high load resistance. They are resistant to corrosion and adverse weather conditions. They guarantee safety and long-term use. In our offer you will find products from renowned brands. These include Kaczmarek and Wavin. We also provide additional accessories, such as well seals.

Types of cast iron covers available at Onninen

Our offer includes various types of cast iron covers. We adapt them to specific applications and customer requirements. Here are the most popular types:

• Sewer manhole covers
• Water pipe covers
• Telecom covers
• Covers for shaft pipes
• Lids with safety lock

Each type of cast iron cover has its own unique features and purpose.   Sewer covers are characterized by high load-bearing capacity. They withstand intensive vehicular traffic. Water supply covers provide tightness and protection against contamination. Telecommunication models allow easy access to infrastructure. Covers for stem pipes are perfect for drainage systems.

Criteria for selecting appropriate cast iron covers

Choosing the right cast iron cover depends on many factors. The expected load is crucial. Environmental conditions and the specifics of the installation should also be taken into account. Here are the most important criteria to consider:

• Load class (A15, B125, C250, D400)
• Diameter and shape of the cover
• Type of closure (e.g. snap, screw)
• Additional security (e.g. against theft)
• Compliance with standards (e.g. PN-EN 124)

The correct selection of the cast iron cover is crucial for the safety and functionality of the installation.   At Onninen, we help our customers choose the best solutions. We advise based on the specifics of the project and local conditions. Our specialists will be happy to answer any questions you may have about cast iron covers.

In our experience, many companies make mistakes when choosing covers. They often opt for cheaper, but less durable options. In the long run, this generates additional costs and problems. That is why we recommend investing in high-quality cast iron covers. They provide trouble-free operation for many years.

Cast iron covers in practice - application examples

In our daily work, we encounter various challenges related to cast iron covers. We recently completed a project for a large shopping center. It required the use of covers with increased load-bearing capacity. We chose D400 class models, which are perfect for intensive traffic conditions.

Another example is the modernization of the water supply network in the historic part of the city. Here, it was crucial to match the covers to the historic buildings. We used special covers with a decorative pattern. They combined functionality with aesthetics, fitting into the character of the surroundings.

Cast iron covers also play an important role in the drainage systems of industrial areas.   In one of the projects, we used covers for the shaft pipes. They ensured effective drainage of rainwater from the extensive maneuvering area. At the same time, they allowed easy access to the system for maintenance purposes.

We often come across questions about securing covers against theft. In response to these needs, we offer models with anti-burglary locks. They are particularly useful in remote locations, where the risk of theft is greater.

In the case of telecommunications installations, customers value our covers with a quick access system. They enable efficient maintenance and expansion of the network. This is especially important in dynamically developing urban areas.

In our experience, many companies underestimate the importance of proper maintenance of cast iron covers. Regular inspection and cleaning significantly extends their life. That is why we always recommend that customers develop a maintenance schedule.

At Onninen, we offer not only covers, but also complete solutions. These include accessories such as well seals or mounting elements. This means that our customers receive a complete system, ready for installation.

Cast iron covers are a key element of underground infrastructure, affecting the safety and functionality of the installation.   That is why it is so important to use high-quality products. At Onninen, we guarantee not only the best covers, but also expert advice. We invite you to contact our specialists. They will help you choose the optimal solutions for your projects.