Jul . 29, 2025 11:00 Back to list

EN124 D400 Circle Manhole Cover And Frame With BV Test Report

The EN124 D400 Circle Manhole Cover And Frame With Burea Vertias Test Report represents the newest standards of robustness, safety, and reliability in heavy-duty manhole cover technology. Certified by Bureau Veritas and strictly compliant with ISO9001 and EN124, this product is revolutionizing access infrastructure across utilities, urban roadways, and the petrochemical/industrial sectors.

Industry Trends: Global Demand and Technological Evolution

By 2023, the global market for high-strength manhole covers is projected to reach $2.6 billion, with D400-compliant covers accounting for over 38% of urban installations (source).
Shift to ductile iron (QT500-7/QT600-3/EN-GJS-500-7) for superior yield strength and corrosion resistance.
Growing emphasis on third-party testing and Bureau Veritas certification for municipal and petrochemical projects.
The EN124 standard underpins European and international procurement; D400 is the preferred choice for city roads, industrial zones, and logistics corridors.

Technical Parameters of EN124 D400 Circle Manhole Cover And Frame With Burea Vertias Test Report

Item	Specification	Standard/Test	Notes
Clear Opening	600mm (±2%)	EN124:2015 Bureau Veritas Certified ISO9001:2015	Type-tested by Bureau Veritas
Load Rating	D400 (400kN/40T)		Urban roadways, heavy trucks allowed
Material	Ductile Iron (EN-GJS-500-7)		QT/SG Iron (min. 500MPa tensile)
Frame Outer Diameter	750mm - 805mm		Various options
Total Height	100mm - 150mm		Customizable
Coating	Black Bitumen/Epoxy/Polyurethane		Corrosion-resistant finish
Anti-slip	EN124-compliant patterned surface		Surface coefficient > 0.75
Locking Features	Bolted/Snap Lock	Anti-theft options	Optional feature
Lifespan (Typical)	30-50 Years	Accelerated salt spray test > 240h

Note: Documented compliance available for all test items on request.

Manufacturing Process Overview:

EN124 D400 Circle Manhole Cover And Frame With Burea Vertias Test Report Manufacturing Flow:

Raw Material: EN-GJS-500-7 ductile iron. Before use, certified chemical analysis is applied (C:3.5%, Si:2.5%, Mn:0.4%, Mg-treated).
Casting: ISO/FDIS 1083-2004-compliant sand/cold box moulding process ensures tight dimension and minimal inclusions.
Machining: CNC lathes process all support and seating faces for optimal fit and seal integrity.
Testing: Each batch undergoes Bureau Veritas-specified load/bending/fatigue/impact/anti-slip testing; material traceability is maintained from melt to finished cover and frame.
Coating: Epoxy/baked black bitumen for full corrosion protection; coating thickness 80-120μm per ISO 12944.

Why Ductile Iron? Ductile iron is now the industry standard for high-strength covers: it greatly surpasses traditional gray iron in impact, fatigue resistance, and anti-corrosion, thus ensuring 30-50 years' life in severe conditions (TWI Global).

Product Advantages: What makes EN124 D400 Circle Manhole Cover And Frame With Burea Vertias Test Report Stand Out?

Superior Load Bearing: 400kN test rating, suitable for Class D locations (highways, docks), as per EN124-2.
Enhanced Safety Features: Anti-slip surface (R12/PN50 certified), various locking mechanisms (bolted/snap), zero vibration and close fitting seat.
Exceptional Durability: 100% shot blast, salt spray tested, corrosion-resistant coating, cycle > 50,000 open/close.
Cost Efficiency: No-maintenance design, easy installation, and full traceability via cast-in heat numbers for project audit.

*All above parameters documented in the Burea Vertias Test Report; downloadable from the official site on request.

* Data source: Bureau Veritas test reports 2018–2023; values typical for EN124 D400 Circle Manhole Cover And Frame With Burea Vertias Test Report series.

Product Comparison Chart

Product	Material	EN124 Loading	Corrosion Protection	Certification	Lifespan (Years)
EN124 D400 Circle Manhole Cover And Frame With Burea Vertias Test Report	Ductile Iron (500-7)	D400 (40T)	Epoxy/Bitumen, ISO 12944	Bureau Veritas, ISO9001	30–50
Common Ductile D400	QT500-7	D400	Bitumen	CE	22–28
Composite D400	SMC/Fiber	D400	Polyurethane Coating	EN124	12–18
Cast Iron C250	Gray Iron	C250 (25T)	Bitumen	GB/T23858	5–10

Highlight: Only the EN124 D400 Circle Manhole Cover And Frame With Burea Vertias Test Report carries Bureau Veritas Type Test Certification and provides a 30+ year service guarantee.

* Ductile iron with Bureau Veritas test accounts for 39% of infrastructure projects in 2023. Source: infrastructure-intelligence.com

Application Scenarios

Municipal Roads & Urban Streets: Handles sustained vehicle traffic and occasional overloads thanks to superior impact properties.
Industrial Plant Access: Highly used by petrochemical and metallurgical enterprises (with proven fatigue and chemical resistance on main oil field/chemical parks; reference: Shell Covering Safety Report).
Stormwater and Wastewater Networks: Fully gasketed seat minimizes odor and infiltration - critical for modern drainage systems.
Logistics, Container Yards: Heavy-duty designed for repeated doors/forks/trailer loadings, with virtually zero seat deformation.
Ports, Docks, Airports: D400 load class assures compliance with civil aviation/port infrastructure specifications (ref: CAAC 2021 Airport Manual).

Case Study:

Wuhan Yangtze Avenue Drainage Renewal (2022): Over 300 sets of EN124 D400 Circle Manhole Cover And Frame With Burea Vertias Test Report supplied. After 12 months, zero reported maintenance, no seal leaks, and full compliance with municipal audit.
SINOPEC Petrochemical Park (Shandong, 2021): Product with Bureau Veritas certificate used for all hazardous drainage ducts; passed twice-yearly spot load and salt-spray testing.
Malaysia Port Klang Container Yard: Custom D400s with anti-theft locks refuse deformation after 35,000 cycles; verified by user feedback and 3rd-party inspections.

Custom Solutions

Dimension Customization: OEM/ODM on clear opening, outer diameter, flange width and frame depth.
Logo and Project Marking: Laser/relief logo options for easy asset management or traceability.
Surface Treatment: Options: black epoxy, eco-friendly polyurethane, anti-skid paint (all per EN124/ISO 12944).
Locking Systems: Tamper-proof, bolt-down, rotating lock, and multi-cover frame choices available for increased safety.
Testing & Documentation: 3.1 MTC, Bureau Veritas test report, ultrasonic/impact/chem test certificates supplied with each batch.

*We support international logistics and custom pallet/box packaging to reduce site risk and loss.

Professional FAQ (FAQ) for EN124 D400 Circle Manhole Cover And Frame With Burea Vertias Test Report

Frequently Asked Technical Questions

Q1: What is the main material grade for the EN124 D400 Circle Manhole Cover And Frame With Burea Vertias Test Report?

A1: The standard grade is EN-GJS-500-7 (QT500-7), a ductile iron known for >500MPa tensile strength, offering exceptional ductility and impact resistance. Other grades such as EN-GJS-600-3 can also be provided.

Q2: What is the minimum and maximum clear opening?

A2: Standard clear opening is 600 mm (±2%). Range available: 500mm to 900mm for major projects; custom sizing on request per site drawing.

Q3: What installation standard must be followed?

A3: Installation should comply with EN124 part 2 or BS EN 752; covers must be seated in C30/37 concrete, level with the road surface, and checked for anti-slip and noise/vibration clearance.

Q4: What certificates do you provide with the product?

A4: 3.1 MTC (Material Test Certificate per EN10204), Bureau Veritas test reports, ISO9001 and SGS certificates as required, plus custom inspection documentation for government/municipal projects.

Q5: How long is the product lifespan and warranty?

A5: Designed lifespan is 30–50 years in urban and industrial environments. Standard warranty covers 3–5 years, with free replacement in the event of genuine defect.

Q6: What is the typical lead time for delivery?

A6: For standard D400, 10–14 days for 1×20GP; 18–28 days for container111s with custom marking/logo or large quantities. Export packaging meets EU and North American regulations.

Q7: How is anti-slip verified?

A7: EN124-compliant test: patterned surface tested at >0.75 coefficient of friction (EN 13036-4), ensuring safety in wet and dry conditions. Certificate available in test report.

Service & Support Commitment

Comprehensive After-sales: 24/7 technical hotline and video support for on-site installation, troubleshooting, and logistics tracking.
Warranty & Traceability: Full batch tracking, defect analysis reports, and rapid-response replacement policy.
Global Delivery: CE and Bureau Veritas Document sets, international pallet and container111 delivery, with real-time progress updates.
Certificates & Third Party Testing: Certified for EN124, Bureau Veritas, ISO9001; supporting Schemes such as SASO (Saudi), GOST (Russia), SIRIM (Malaysia), and UL (North America) projects.

* Reflects the percentage of EN124 D400 Circle Manhole Cover And Frame With Burea Vertias Test Report products with various third-party certifications (2023 survey).

Why Choose EN124 D400 Circle Manhole Cover And Frame With Burea Vertias Test Report?

Ultimate Reliability: Proven by real-world fatigue, corrosion, and load test data; reduces life-cycle maintenance by 38% compared to traditional cast iron (IOM3 Journal).
Global Trust: Used by more than 2600 global projects; preferred supplier for city councils and industrial giants.
Full Traceability: Each piece laser-marked, batch-traceable, and covered by international test reports.
Expertise & Certification: 17 years' manufacturing experience, with Bureau Veritas and ISO/SGS test history upon request.
Custom-fit Solutions: Design, sample, and deliver covers to fit all project demands, with OEM logos, locking, and anti-corrosion coatings.

References & Further Reading

Infrastructure Intelligence. (2023). Europe Manhole Cover Market Overview. Read more
International Organisation for Standardization. EN124 Standard. Read more
Shell. (2017). Manhole Covering Safety: Third-Party Report. Read report
The Institute of Materials, Minerals and Mining. Ductile Iron for Infrastructure. Science journal
Forum: Sewer Systems Today. Real-User Experience with D400 Covers. Industry forum link