BIC’s latest range of ductile manhole covers & gratings forays into a different material – Ductile Iron. We bring over 50 years of experience in castings to these SG Iron Covers & Frames. These covers are designed in accordance with the international standard EN 124-2 keeping in mind optimal safety, reliability and long service life.
As a leading exporter and manufacturer of Ductile Iron Manhole Cover in India, we supply our products across the globe to countries such as Canada, Italy, Spain, the UK, USA and more.
Superior Engineering Design : Our products are designed to export standards and are highly optimized leading to reduction in weight while still retaining the load
bearing capacity.Lighter Weight: Our products are upto 68% lighter than the competition, while retaining the same load bearing capacity, thus helping you save major purchasing
costs.
Reduced Labour: Owing to its lighter weight, the ease of handling and efficiency of installation increases significantly for the workers, leading to more savings
for the buyer.Reduced transportation costs: Now in the same truck, you can get more quantities of DI Covers & Frames, helping you save further.Theft Safe: Our hinge type designs are suited for spaces without security as they prevent stealing of covers & grates.Longevity: For the same price, DI covers will last at least 3x longer than other materials in the market. It is a win-win.As of the date of writing this article, the Bureau of Indian Standards does not have a separate code for Ductile Iron manhole covers. As a result, the most popular code used in India is the European EN124. Manhole covers and grates up to and including a clear opening of 1000 mm are divided into 6 load classes.
A 15 : Capable of withstanding 15kN or 1.5MT of load. They are suitable for areas which can only be used by pedestrians and pedal cyclists.B 125 : Capable of withstanding 125kN or 12.5MT of load. They are ideal for pedestrian areas and comparable areas, car parks or car parking decks.C 250 : Capable of withstanding 250kN or 25 MT of load. The area of kerbside channels of roads which, when measured from the kerb edge, extends a maximum of 0.5
m into the carriageway and a maximum of 0.2 m into the pedestrian area.D 400 : Capable of withstanding 400kN or 40 MT of load. The carriageways of roads (including pedestrian streets), hard shoulders and parking areas, for all types
of road vehicles.E 600 : Capable of withstanding 600kN or 60 MT of load. Areas imposing high wheel loads, e.g. docks, aircraft pavements.F 900: Capable of withstanding 900kN or 90 MT of load. Suitable for areas imposing particularly high wheel loads, e.g. aircraft pavements.BIC offers ductile iron covers and frames in configurations designed for manholes, chambers, utility access points, and drainage systems.
Ductile Iron Manhole Covers : Ductile iron manhole covers are crafted to provide safe access to underground drainage and utility chambers. We ensure that the load requirements and installation environment are supported.Ductile Iron Chamber Covers : These covers provide safe and easy access to underground chambers and shield the opening from heavy loads and weather.Ductile Iron Access Covers : Ductile iron access covers provide access to underground utility services. We take care of the opening for external loads and environmental exposure. 
These covers and manholes feature a tray-like surface that can accommodate suitable paving or finishing materials. The recessed manhole and chamber covers are ideal for locations where cover needs to blend with the surrounding surface.
The ductile iron drainage gratings are used in drainage systems to help surface water to enter drainage channels while offering a load-bearing surface.
Ductile iron manhole covers are the best for infrastructure projects that require underground drainage, sewerage, and utility systems. Let’s explore some common applications.
Roads and HighwaysParking AreasAirports and Shipping YardsDrainage and Sewerage SystemsCommercial BuildingsIndustrial FacilitiesPedestrian WalkwaysStormwater DrainageWhile buying the ductile iron manhole cover, buyers need to consider more than the material alone. Load class, dimensions, surface finish, and frame design, and surface finish all influence whether a product is suitable for a particular project.
BIC manufacturers ductile iron manhole covers for different infrastructure requirements. The specifications should be confirmed against the product catalogue and project requirements. Key specifications to consider include materials, load class, product configuration, dimensions, frame, cover design, customization, and surface finish.
Identify the Installation AreaChoose the Appropriate Load ClassConfirm the DimensionsSelect the Right Cover TypeConsider Additional RequirementsReview the Technical DocumentationA ductile iron manhole cover is a cover manufactured from spheroidal graphite iron. It offers access to underground chambers while meeting the loading requirements of its intended installation.
The common EN 124-2 load classes are A15, B125, C250, D400, E600, and F900.
Ductile iron contains graphite in a nodular form. It provides greater ductility and tensile strength than conventional grey cast iron.
D400 covers are specified to bear 40MT of load. They are recommended to be used in areas with heavy traffic, hard shoulders, carriageways, and parking areas used by road vehicles.
A15
In areas which can only be used by pedestrians and pedal cyclists.
B125
Suitable for pedestrian areas and comparable areas, car parks or car parking decks
C250
Meant for the area of kerbside channels of roads which, when measured from the kerb edge, extends a maximum of 0.5 m into the carriageway and a maximum of 0.2 m into the pedestrian area
D400
On the carriageways of roads (including pedestrian streets), hard shoulders and for all types of road vehicles.
E600
In areas imposing high wheel loads, e.g. docks, aircraft pavements.
F900
Suitable for areas imposing particularly high wheel loads, e.g. aircraft pavements.
We have been exporting DI Covers & Frames for over a decade now. Our designs conform to international standards and these are the conventional weights of manhole covers used in countries
like Italy, Spain, the UK and more. We are utilizing the same design technology for the Indian market as well that will help contractors save money.
Our foundry strictly follows the Ductile Iron grade 500-7 metallurgical standard, which ensures our products can withstand the heavy loads with light weights.Our designs have been vetted by reputed 3rd party inspection agencies, thus reinforcing our manufacturing and design technology.
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