The D400 hinged double triangular manhole cover is meticulously designed for high-traffic environments such as highways, urban roads, and commercial zones. With a clear opening of 750 x 450 mm and a frame height of 75 mm, it ensures robust performance and easy access for maintenance operations.
Key Features
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Material: Constructed from high-quality ductile iron, providing exceptional strength and resistance to wear and corrosion.
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Design: The double triangular configuration ensures a non-rocking fit, enhancing stability under heavy loads.
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Hinged Access: Equipped with a hinged mechanism, allowing for safe and efficient one-person operation, reducing the risk of injury during maintenance.
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Load Class D400: Certified to withstand loads up to 40 tonnes, making it suitable for carriageways and areas with heavy vehicular traffic.
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Surface Finish: Features a slip-resistant tread pattern to enhance safety for pedestrians and vehicles.
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Compliance: Meets international standards including BS EN 124-2:2015, ensuring reliability and quality assurance.
Applications
Ideal for installation in:
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Urban and rural roadways
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Industrial and commercial facilities
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Parking lots and loading bays
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Utility and service access points
Benefits
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Durability: Engineered to endure harsh environmental conditions and heavy usage over time.
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Safety: Designed with features that minimize the risk of accidents during access and maintenance.
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Efficiency: The hinged design facilitates quick and easy access, reducing downtime during inspections and repairs.
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Compliance: Adheres to recognized standards, ensuring compatibility with global infrastructure requirements.
Specifications
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Clear Opening: 750 x 450 mm
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Frame Height: 75 mm
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Material: Ductile Iron
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Load Capacity: D400 (up to 40 tonnes)
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Standards: BS EN 124-2:2015
Conclusion
The D400 hinged double triangular manhole cover is a reliable and efficient solution for access points in high-traffic areas. Its robust construction, safety features, and compliance with international standards make it an excellent choice for infrastructure projects requiring durable and accessible manhole covers.
| Family: | Telecom / Fibre / Cable |
| Packaging Qty: | 5 |
| Product Type: | Telecom Access Cover |
| Certified Class: | D400 |
| Standards: | EN124 |
| Surface Finish: | Anti-slip surface |
| Clear Opening Length (Hinge Side): | 750 mm |
| Clear Opening Width: | 450 mm |
| Flange Outer Length: | 914 mm |
| Flange Outer Width: | 614 mm |
| Frame Height: | 100 mm |
| Weight: | 91 kg |
| Watertight: | No |
| Cover/Grating Shape: | Double Triangular |
| Cover/Grating Length: | 778 mm |
| Hatch Cover/Grating Qty: | 2 |
| Cover Security Block Angle: | 90 |
| Hinged: | Yes |
| Hinge Type: | TI |
| Lock Type: | 1/4 Turnbuckle |
| Number of Locking: | 1 |
| Opening Direction: | Vertical |
| Frame Style: | Monoblock as Cast |
| Frame Shape on Vertical Section: | Flat |
| Frame Surface Protection By: | Water-Based Paint |
| Nb Anchoring Hole: | 4 |
| Installation Type: | With Concrete |
| Diameter Anchoring hole: | 20 mm |
| Handling Key: | Hook Handle / 517082 |
| Locking Key: | CLE TI / 514260 |
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 |
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