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China EN124 D400 Ductile Iron Square Manhole Cover Suppliers - Factory Direct Quality Solutions
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Introduction
At present, the use of rectangular manhole covers has become increasingly popular in urban areas. In densely populated areas, the use of rectangular manhole covers has taken precedence over the circular ones, due to their relative ease of use and efficient handling. Their rectangular shape makes them more suitable for installation in narrow and elongated urban spaces, and for covering rectangular or square-shaped openings.
Our rectangular manhole covers come in various sizes and in ample quantities to meet your business needs. They are manufactured according to international standards and are suitable for use in different environments, including urban and rural areas. In this product introduction, we will delve deeper into what makes our rectangular manhole covers unique and explore their advantages and benefits.
Product Design
Our rectangular manhole covers are made from high-quality materials that are both durable and long-lasting. They are manufactured using casting technology, which guarantees the quality and durability of the product. The covers are designed and tested to sustain heavy loads and resist damage from environmental factors, such as weather and corrosion.
Our rectangular manhole covers come in a variety of sizes to meet your needs. They can range from 400x400mm up to 1200x1200mm, depending on the size of the opening that you need to cover. The covers are available in different thicknesses, including 40mm, 50mm, and 75mm to suit various uses.
Product Materials
We use high-quality materials to manufacture our rectangular manhole covers. The covers are made from either ductile iron or grey iron. Ductile iron is more shock-resistant and offers higher strength, while grey iron is more robust and offers good wear resistance.
The covers are also coated with various materials to extend their lifespan and prevent weathering and corrosion. We can apply various coatings to the covers, including bitumen, powder coating, epoxy, and in some cases, a combination of coatings.
Product Advantages
Optimized Design
The rectangular shape makes them highly suitable for narrow, elongated areas and densely populated urban spaces where space is limited.
Heavy Load Capacity
Capable of withstanding loads of up to 40 tonnes, making them perfect for high-traffic zones and industrial areas with heavy machinery.
Weather & Corrosion Proof
Coated with bitumen, powder, or epoxy to resist rain, snow, saltwater, and chemical agents like oil and gas.
Easy Install & Maintenance
Lightweight design allows simple installation and removal without heavy machinery, making maintenance highly cost-effective.
Conclusion
Our rectangular manhole covers are ideal for any business operating in urban or industrial areas. Their superior design, strength, and resistance to wear and tear make them ideal for installation in high-traffic areas. They are easy to install and maintain, making them a cost-effective solution for businesses looking to reduce their maintenance costs.
We guarantee the quality of our rectangular manhole covers, and we're happy to answer any questions you may have about our products. We're confident that you'll be satisfied with the quality and performance of our products, and we look forward to working with you!
Product Parameter
| Class | Frame Size (mm) | Clear Opening (mm) | Depth (mm) | Unit Weight (kg) | Specification |
|---|---|---|---|---|---|
| D400 | 400*400 | 300*300 | 75 | 20 | Ductile iron; single seal; closed key hole |
| D400 | 500*500 | 400*400 | 100 | 29 | |
| D400 | 550*550 | 450*450 | 100 | 37 | |
| D400 | 600*600 | 500*500 | 100 | 42 | |
| D400 | 700*700 | 600*600 | 100 | 58 | |
| D400 | 800*800 | 700*700 | 100 | 77 | |
| D400 | 900*900 | 800*800 | 100 | 99 | |
| D400 | 1000*1000 | 900*900 | 100 | 149 | |
| D400 | 1100*1100 | 1000*1000 | 100 | 180 |
Frequently Asked Questions
What materials are used to manufacture the rectangular manhole covers?
The covers are made from either high-quality ductile iron or grey iron. Ductile iron is more shock-resistant and offers higher strength, while grey iron is more robust and offers good wear resistance.
What sizes and thicknesses are available?
They come in various sizes ranging from 400x400mm up to 1200x1200mm, with thicknesses including 40mm, 50mm, and 75mm to suit different installation openings and requirements.
What is the maximum load capacity of these covers?
Our rectangular manhole covers are designed and tested to sustain heavy loads of up to 40 tonnes, making them suitable for high-traffic zones and industrial areas.
Are these manhole covers resistant to corrosion and weather?
Yes. To extend their lifespan and prevent weathering, the covers are coated with materials such as bitumen, powder coating, epoxy, or a combination of these coatings. This protects them from rain, snow, saltwater, and chemical agents like oil and gas.
Why are rectangular manhole covers preferred over circular ones in urban areas?
Rectangular manhole covers are preferred due to their relative ease of use, efficient handling, and suitability for installation in narrow and elongated urban spaces to cover rectangular or square-shaped openings.
Do they require heavy machinery for installation or maintenance?
No. The covers are lightweight and easy to install or remove without the need for heavy machinery, which makes them highly cost-effective and easy to clean or maintain.