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  • SYI Black Bitumen Square Rectangular Round Single Double Seal Ductile Iron Manhole Cover Size
  • SYI Black Bitumen Square Rectangular Round Single Double Seal Ductile Iron Manhole Cover Size
  • SYI Black Bitumen Square Rectangular Round Single Double Seal Ductile Iron Manhole Cover Size
  • SYI Black Bitumen Square Rectangular Round Single Double Seal Ductile Iron Manhole Cover Size
  • SYI Black Bitumen Square Rectangular Round Single Double Seal Ductile Iron Manhole Cover Size
  • SYI Black Bitumen Square Rectangular Round Single Double Seal Ductile Iron Manhole Cover Size
SYI Black Bitumen Square Rectangular Round Single Double Seal Ductile Iron Manhole Cover Size

SYI Black Bitumen Square Rectangular Round Single Double Seal Ductile Iron Manhole Cover Size

$5.00-$50.00/ Piece|5 Piece/Pieces(Min. Order)

Customization:

Customized logo（Min.Order: 5 pieces）
Customized packaging（Min.Order: 5 pieces）
Graphic customization（Min.Order: 5 pieces）
View product details

SYI Black Bitumen Square Rectangular Round Single Double Seal Ductile Iron Manhole Cover Size

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Infrastructure Protection: Designed to seal and secure underground utilities (e.g., drainage, electrical systems) with robust ductile iron construction and black bitumen coating for corrosion resistance.
  • Shape Versatility: Offers round, square, and rectangular configurations to match diverse opening requirements in municipal, commercial, and industrial applications.
  • Seal Technology: Features single or double seals to prevent water ingress and ensure structural integrity under heavy loads.

Key features

  • 1. Material Technology

    • With ductile iron construction and black bitumen seal, provide corrosion resistance and watertight sealing, outperforming standard cast iron covers*.

  • 2. Interactive Design

    • With ergonomic ribbed surfaces and central handles, facilitate safe lifting and reduce slipping risks* compared to flat-surfaced alternatives.

  • 3. Performance Parameters

    • With high load-bearing capacity (suited for municipal and industrial use), support heavy vehicular traffic without deformation* versus lighter-duty covers.

  • 4. Scenario Solutions

    • With adaptable shapes (round/square/rectangular) and customizable dimensions, suit diverse municipal and industrial infrastructure needs, such as street maintenance, utility pits, and construction sites*.

  • 5. Certification Standards

    • With CE certification, meet EU safety and quality standards for public infrastructure projects*, ensuring compliance with international regulations.

Product details

SYI Black Bitumen Square Rectangular Round Single Double Seal Ductile Iron Manhole Cover Size

The SYI Black Bitumen Manhole Covers are engineered for municipal infrastructure applications, offering robust ductile iron construction with single/double seal systems. Available in round, square, and rectangular designs, these covers ensure safety, durability, and compliance with CE standards.

Technical specifications

FeatureSpecificationBenefit
MaterialDuctile Iron20% stronger than traditional cast iron
CertificationCE CertifiedEnsures compliance with EU safety norms
Seal TypeSingle/Double Black Bitumen50% better water/debris resistance
Surface DesignRibbed PatternReduces slipping risk by 40%
ProcessSand CastingPrecision-molded for consistent quality
ApplicationMunicipal Ducts, Streets, IndustrialVersatile for diverse infrastructure

Customization guide

Adjustable dimensions and rib patterns to meet specific municipal infrastructure requirements.

Get inspired

Choose from three shapes (round, square, rectangular) and seal configurations to match your project’s load capacity, environmental exposure, and safety standards. The ribbed surface design and ductile iron material ensure long-term durability even in harsh conditions.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Seal TypeSingleDoubleDouble + EPDM
Load Capacity20 tons25 tons30 tons
Corrosion ResistanceCE CertifiedCE + ASTMCE + ASTM + ISO
Surface FinishMatteMatte + CoatingMatte + Epoxy

Supplier's note

  1. Three Technical Breakthroughs:

    • Ductile Iron Material: 20% stronger than traditional cast iron, enabling heavier load tolerance.
    • Double Seal System: Achieves 50% better water/debris resistance compared to single seals.
    • Ribbed Surface Design: Reduces slipping risk by 40% versus smooth surfaces.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard municipal streets or light industrial use where single-seal durability suffices.
    • Advanced Model: Perfect for heavy-traffic zones or areas with frequent water exposure, leveraging double seals and ASTM compliance.
    • Pro Model: Best suited for corrosive environments (e.g., coastal regions) or high-stress applications, combining triple certifications and 30-ton load capacity.

With the Pro version’s ISO-certified corrosion resistance, you can safely install covers in marine areas, while the ribbed surface ensures pedestrian safety. Pair the Advanced Model’s double seal with its 25-ton load capacity for reliable performance in construction sites.

Frequently asked questions

  • Which SYI manhole cover is best for high-traffic municipal streets?

  • How do I clean and maintain SYI ductile iron manhole covers?

  • Why is ductile iron better than regular cast iron for manhole covers?

  • Can SYI manhole covers be customized for specific municipal projects?

  • Is the SYI manhole cover CE-certified for safety compliance?

  • What’s the difference between single and double seal manhole covers?

  • How does ductile iron compare to steel for manhole covers?

  • Which SYI cover suits industrial areas with heavy machinery?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Industry Standard Round CoverStreets, Parking LotsCast Iron (ASTM A48 Class 30)
Load Capacity: 30 tons (EN 124 Class B125)
Noise: 45 dBA (standard urban noise)		Cost-effective, widely available.
Simple installation.		Prone to corrosion over time.
Lower load capacity for heavy industrial use.
Our Base Round CoverStreets, Parking LotsDuctile Iron (ASTM A536 Grade 65-40-18) ▲
Load Capacity: 40 tons ▲
Noise: 40 dBA ▲ (quieter than Industry)		Enhanced durability vs cast iron.
CE Certified.
Resists corrosion.		Slightly higher upfront cost.
Standard noise reduction.
Our Advanced Round CoverHigh-traffic Industrial AreasDuctile Iron + Epoxy Coating ▲▲
Load Capacity: 50 tons ▲▲
Noise: 35 dBA ▲▲ (ultra-quiet)
Corrosion: 1000h salt spray ▲		Highest load capacity.
Quietest option.
Longest lifespan (20+ years).		Most expensive.
Heavier, requiring specialized installation.
Industry Standard Square CoverIndustrial Utility PitsCast Iron (ASTM A48)
Load Capacity: 30 tons (EN 124 B125)
Ventilation: 10% open area		Cost-effective.
Standard drainage/ventilation.		Prone to rust.
Limited corrosion resistance.
Our Base Square CoverIndustrial Utility PitsDuctile Iron (ASTM A536) ▲
Load Capacity: 40 tons ▲
Ventilation: 15% open area ▲		Improved corrosion resistance.
Enhanced load capacity.
CE Certified.		Moderate cost increase.
No advanced coating.
Our Advanced Square CoverHazardous Material Storage AreasDuctile Iron + Chemical-Resistant Coating ▲▲
Load Capacity: 50 tons ▲▲
Chemical Resistance: ASTM F739 (30+ chemicals)		Withstands harsh chemicals.
Best-in-class durability.
Fire-resistant.		Highest price point.
Requires regular coating maintenance.

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