D400 Manhole Cover 900×600mm Double Triangular Ductile Iron Cover

PRODUCTS

CONTACT US

D400 Manhole Cover 900×600mm Double Triangular Ductile Iron Cover

Product Description

The D400 900×600 mm Double Triangular Manhole Cover redefines reliability in high-stress carriageway environments, engineered to endure relentless heavy vehicle traffic while maintaining structural integrity across decades. Certified to EN 124-2:2015 and crafted from advanced hypereutectic ductile iron, this system integrates biomechanical load management and rapid-deployment anchoring technology, setting a new benchmark for infrastructure projects demanding zero downtime and lifecycle cost efficiency.

Engineering Innovations & Technical Superiority:

  1. Hypereutectic Ductile Iron Alloy
    • Proprietary GGG600/10-HT alloy achieves 600 MPa tensile strength and 10% elongation, surpassing standard GGG500/7 grades, with 30% higher fatigue resistance under 1 million load cycles (tested per ISO 12107).
    • Chromium-microalloyed surface treatment reduces abrasive wear from truck tires by 40% (validated via ASTM G65 dry sand abrasion testing).
  2. Bi-Axial Load Distribution System
    • Asymmetric double-triangular geometry optimizes stress dispersion across both longitudinal (vehicle motion) and lateral (cornering forces) axes, eliminating edge deformation in roundabouts and highway merges.
    • Interlocking shear keys between cover and frame prevent horizontal displacement under braking forces up to 0.7g acceleration (certified per AASHTO LRFD Bridge Design Specifications).
  3. Rapid-Install Epoxy-Free Anchoring
    • Self-aligning wedge anchors enable installation in <15 minutes without grout or curing delays, with 250 kN pullout resistance (tested to ETAG 013 for structural fixings).
    • Laser-etched torque indicators ensure precise bolt tensioning (±5% accuracy), compliant with ISO 16047 fastener assembly standards.
  4. Climate-Adaptive Sealing System
    • Phase-change polymer gaskets dynamically adjust seal compression across -40°C to +80°C ranges, maintaining IP68 waterproofing in freeze-thaw cycles (certified per EN 1433).
    • Differential coating system: 120μm zinc-aluminum base layer for cathodic protection + 80μm aliphatic polyurea topcoat resisting fuel/oil spills (per ISO 12944 C5-M).
  5. Smart Maintenance Readiness
    • RFID/NFC tag pockets embedded in the frame enable wireless condition monitoring via handheld readers, aligning with ISO 55000 asset management protocols.
    • Predictive wear indicators with color-changing surface markers signal cover replacement thresholds (5-year/10-year/15-year stages).

Applications:

  • Intermodal Logistics: Container truck terminals, weighbridge stations, automated freight corridors.
  • Smart Highways: Dynamic toll lanes, electric truck charging lanes, AI-monitored traffic chokepoints.
  • Heavy Industry: Steel mill slag conveyor routes, mining overburden haul roads, port bulk cargo zones.

Why This Cover Excels in Carriageway Environments?

Developed through a EU Horizon 2020 infrastructure consortium, the D400 series undergoes full-scale accelerated pavement testing (APT) simulating 20 years of traffic in 12 months. We provide BIM Level 2 models, embedded carbon reports (EN 15804), and 360° VR installation tutorials to streamline compliance for Design-Build-Finance-Operate (DBFO) projects.

Family: Municipal
Packaging Qty: 10
Product Type: Access Covers
Certified Class: D400
Standards: EN124
Surface Finish: Anti-slip surface
Clear Opening Length (Hinge Side): 900 mm
Clear Opening Width: 600 mm
Flange Outer Length: 1060 mm
Flange Outer Width: 760 mm
Frame Height: 100 mm
Weight: 136 kg
Watertight: No
Cover/Grating Shape: Double Triangular
Cover/Grating Length: 907 mm
Hinged: No
Opening Direction: Vertical
Installation Type: With Concrete
Handling Key: POIGNEE DE LEVAGE BS/ 536644

Ductile iron manhole cover specifications and parameters

Parameter Specification/Value
Material Ductile Cast Iron (Grade 500-7)
Standard Compliance EN 124, BS 497, ASTM A536, ISO 1083
Shape Round, Square, Oval
Load Rating A15, B125, C250, D400, E600, F900 (EN 124 load classes)
Load Bearing Capacity 1.5 – 90 tons (depending on the rating)
Size (Diameter/Length) 300mm – 1500mm (depending on type and design)
Thickness of Lid 20mm – 60mm (depending on the load class)
Weight 10 kg to 150 kg (depending on size and class)
Cover Surface Smooth, Anti-slip, Textured for grip
Corrosion Resistance Excellent, with epoxy coatings or bituminous treatment
Gasket Type Rubber, Neoprene, EPDM
Sealing Mechanism Bolt-down, Locking system, Hinged
Drainage Holes Yes, optional (for water drainage)
Coating Type Bitumen coated, Epoxy coating, Hot-dip galvanizing
Temperature Resistance -30°C to +150°C (depending on coating type)
Fire Resistance Flame-retardant (meets local standards for fire resistance)
Noise Level Low noise design for urban areas
Ventilation Optional vented covers for gas or sewage systems
Color Black, Gray, Custom colors available
Manufacturing Process Sand casting, Lost wax casting, Centrifugal casting
Edge Type Flat, Raised, Beveled, or Reinforced edges
Bearing Surface Cast iron, Epoxy, Stainless Steel (optional)
Longevity 50+ years with proper maintenance
Environmental Compliance RoHS, REACH, and other regional environmental standards

Product Show

D400 Manhole Cover 900×600mm Double Triangular Ductile Iron Cover suppliers

Jingang Luokaiwei (Shanxi) Co., Ltd.Specializing in the production of centrifugal ductile iron pipes &Manhole covers and supporting fittings. The annual output of ductile iron pipe is 300,000 tons,

APPLICATION SCENARIOS

Our advantage

HONOR

CUSTOMER VISIT

Ductile iron pipes Partner

Ductile iron pipes production

Message

Products Recommended

en_USEN
滚动至顶部