A heavy‑duty, drop‑in B125 manhole cover and frame engineered from GGG500/7 ductile iron ensures exceptional strength and corrosion resistance, with a clear opening of 500 × 500 mm and a precision‑machined, single‑seal (labyrinth) system that prevents ingress of water, debris, and odours. It meets all requirements of BS EN 124‑2:2015 for Group 2 (B125) loading—suitable for pedestrian zones and light‑traffic areas—and carries the BSI Kitemark for independent quality assurance. Installation is straightforward: simply drop the cover into its 552 × 552 mm frame, where the snug fit and sealed design eliminate rattling and trip hazards, while offering quick access for maintenance.
🛠️ Product Overview
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Material: GGG500/7 grade ductile iron per ISO 1083 for enhanced tensile strength and impact resistance.
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Design: Square, drop‑in cover and frame (552 × 552 mm outer frame) with flush, slip‑resistant surface finish.
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Seal: Single labyrinth (drop‑in) seal effectively prevents water, dust, and odour penetration.
📐 Technical Specifications
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Clear Opening: 500 × 500 mm for unobstructed access to utilities.
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Load Class: B125 (12.5 tonne test load), ideal for pedestrian areas, sidewalks, plazas, and light‑traffic car parks.
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Weight: Approximately 22 kg for the cover plus 28 kg for the frame, balancing robustness with manageable handling.
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Installation: Precision‑machined lip and drop‑in mounting allow tool‑assisted installation and removal, minimizing installation time and lifecycle costs.
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Coating Options: Standard bitumen coating (30 µm) or optional epoxy finish for enhanced corrosion protection in aggressive environments.
🏅 Quality & Compliance
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Standard: Fully manufactured and tested to BS EN 124‑2:2015 for Group 2 (B125) manhole covers and gully gratings.
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Certification: BSI Kitemark accreditation guarantees independent audit, batch traceability, and compliance with UK and EU regulations.
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Materials Compliance: Conforms to ISO 1083 for ductile iron composition and tensile properties.
🔧 Applications & Benefits
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Versatile Use: Perfect for sidewalks, pedestrian precincts, residential streets, driveways, and light‑traffic roadways.
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Low Maintenance: Sealed design and corrosion‑resistant finish reduce the need for cleaning and replacement, lowering total cost of ownership.
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Safety: Flush‑mounted, slip‑resistant surface and single‑seal seating eliminate trip hazards and cover noise under traffic.
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Serviceability: Ergonomic lift‑points and drop‑in fit enable rapid access for inspections and repairs, enhancing on‑site efficiency.
| Family: | Municipal |
| Packaging Qty: | 20 |
| Product Type: | Connection Boxes |
| Product Ranges: | Quattro Range |
| Certified Class: | B125 |
| Standards: | EN124 |
| Surface Finish: | Anti-slip surface |
| Clear Opening Length (Hinge Side): | 500 mm |
| Clear Opening Width: | 500 mm |
| Flange Outer Length: | 600 mm |
| Flange Outer Width: | 600 mm |
| Frame Height: | 40 mm |
| Weight: | 28 kg |
| Mass Per Unit Area: | 71 kg |
| Watertight: | No |
| Cover/Grating Shape: | Square |
| Cover/Grating Length: | 567 mm |
| Hinged: | No |
| Opening Direction: | Vertical |
| Frame Style: | Monoblock as Cast |
| Frame Shape on Vertical Section: | Flat |
| Frame Surface Protection By: | Water-Based Paint |
| Installation Type: | With Concrete |
| Handling Key: | Hook Handle / 517082 |
| Locking Key: | N/A |
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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