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C250 Ductile Iron Manhole Cover L2T China Factory and Suppliers

C250 Ductile Iron Manhole Cover L2T China Factory and Suppliers

Looking for reliable China suppliers? Our factory provides the L2T Ductile Iron Manhole Cover with black bitumen painting and C250 specifications, compliant with ISO1083/JS/500-7 for superior durability.

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Product Details

The Ductile Iron Manhole Cover L2T is a high-performance infrastructure solution engineered for superior load-bearing capacity and long-term durability. Specifically designed for demanding urban and industrial environments, this model combines the inherent strength of ductile iron with a specialized protective finish to ensure maximum reliability in drainage and utility access.

By utilizing a precise casting process and adhering to strict C250 load specifications, the L2T model provides a secure and stable seal that prevents debris infiltration and ensures safety for pedestrians and vehicles. Its robust construction makes it an ideal choice for municipal projects requiring a balance of high structural integrity and corrosion resistance.

Detailed Parameters

Product ModelL2TMaterial CompositionDuctile Iron Cast
Loading ClassC250Surface TreatmentBlack bitumen painting
Manufacturing ProcessPrecision CastingIndustry ApplicationMetal Products Manufacturing
Primary UseDrainage & Utility AccessCoating TypeAnti-corrosive Bitumen
Structural GradeHeavy DutyCertification StandardIndustry Compliant

Key Advantages

High Load Capacity

Engineered to C250 specifications, ensuring stability under significant pressure and heavy traffic loads.

Extended Lifespan

The use of premium ductile iron prevents brittle fractures, significantly increasing the product's operational life.

Corrosion Resistance

Finished with black bitumen painting to create a waterproof barrier against oxidation and chemical erosion.

Precision Engineering

Expertly cast to ensure a seamless fit between the frame and cover, reducing noise and movement.

Low Maintenance

The durable bitumen coating minimizes the need for frequent repainting or structural repairs.

Standardized Fit

Designed to integrate easily with existing municipal drainage systems and utility networks.

Product Gallery

Management Platforms

Inventory Control

Real-time tracking of L2T stock levels to ensure rapid dispatch for large-scale projects.

Quality Assurance

Rigorous testing of material density and coating thickness for every batch produced.

Order Monitoring

Transparent status updates from the casting stage to final delivery and installation.

Logistics Sync

Optimized shipping routes to reduce delivery lead times for heavy metal products.

Custom Specs

Platform for submitting specialized dimension requirements for bespoke metal fabrication.

Compliance Tracking

Digital archiving of certification and load-bearing test reports for audit readiness.

Investment Return Comparison

Performance MetricStandard Cast IronDuctile Iron L2TLong-term Value
DurabilityModerateExceptionalHigher Lifecycle
Load CapacityLower LimitC250 High LimitReduced Replacement
Corrosion RateHigherLow (Bitumen Coated)Lower OpEx
Safety FactorBrittle RiskHigh ElasticityRisk Mitigation
Installation CostLowMediumHigher ROI

Frequently Asked Questions

Q: What is the primary difference between ductile iron and gray iron for manhole covers?                                    

Ductile iron contains spherical graphite, which provides significantly higher strength, ductility, and impact resistance compared to the flake graphite in gray iron, preventing cracking under heavy loads.

Q: What does the C250 load specification signify for the L2T model?                                    

C250 indicates that the cover is tested to withstand a specific load limit, making it suitable for areas with moderate traffic, such as car parks and residential roads.

Q: How does black bitumen painting protect the metal surface?                                    

Bitumen painting acts as a hydrophobic barrier that seals the pores of the iron, preventing moisture and corrosive agents from reaching the metal, thus stopping rust formation.

Q: Are these manhole covers suitable for industrial wastewater environments?                                    

Yes, the combination of ductile iron and bitumen coating provides the necessary chemical resistance required for most industrial drainage applications.

Q: Can the L2T model be customized to different sizes?                                    

While the L2T is a standard model, our manufacturing facility specializes in custom metal fabrication to meet specific project dimensions and requirements.

Q: How often should the bitumen coating be inspected?                                    

We recommend a visual inspection every 2-3 years. If significant scratching or wear is observed, a touch-up coat of bitumen can be applied to maintain full protection.

Ready to Upgrade Your Infrastructure with L2T Ductile Iron Covers?

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