The F900 multileaf manhole cover model MDF150075 is engineered to withstand test loads up to 900 kN (90 tonnes) per EN124:2015 Class F900, making it ideal for runways, docks, and heavy‑industry zones. Its double‑triangular, non‑rock hinged lid design allows one‑person operation while maintaining stability under extreme loads. With a 1,500 × 750 mm clear opening and 150 mm frame height, it fits standard rectangular access points and integrates flush into prepared recesses.
Overview
The F900 manhole cover is tested to the highest vehicular load class, sustaining 900 kN static and dynamic forces per EN124:2015 Group 6 requirements. It features a double‑triangular hinged lid, where two interlocking triangular leaves pivot on a full‑length hinge and lock at 90° for safety. The 1,500 × 750 mm clear opening and 150 mm frame depth provide generous access and robust support for surrounding pavement.
Key Features
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Class F900 Load Rating: Certified for very heavy wheel loads up to 900 kN, suitable for airports, docks, and industrial yards.
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Double‑Triangular, Non‑Rock Lids: Two triangular leaves interlock to prevent cover movement under traffic.
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Hinged for One‑Person Operation: The lid pivots open smoothly, reducing maintenance time and labor costs.
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Ductile Iron Construction: Crafted from spheroidal graphite cast iron (GJS) for high tensile strength and impact resistance.
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Anti‑Slip Tread Pattern: Raised chequered surface exceeds PSRV 70 standards to minimize slip risk in wet conditions.
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150 mm Frame Height: Deep frame ensures stable seating and efficient load transfer into substructure.
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High‑Security Locking Options: Can be fitted with standard or high‑security OTCI turnbuckle systems to prevent unauthorized opening.
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Gas‑Strut Assist: Optional gas spring reduces opening effort and holds the cover open at 90°.
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Ergonomic Handles: Hooked double handles allow safe, comfortable lifting—even with gloves.
Technical Specifications
| Specification | Details |
|---|---|
| Standard | EN124:2015 Class F900 |
| Clear Opening | 1,500 × 750 mm |
| Overall Dimensions | 1,660 × 950 mm |
| Frame Height | 150 mm |
| Weight | Approx. 396 kg |
| Material | Spheroidal graphite cast iron (GJS) |
| Finish | Bitumen coating (30 µm) or epoxy |
| Pattern | Raised anti‑slip tread |
Benefits for End Users
Durability and safety are paramount: this cover resists deformation and corrosion, ensuring a service life beyond 30 years in harsh environments. Its double‑triangular, non‑rock design reduces vibration and prevents unseating under passing loads. The hinged, gas‑strut‑assisted lid speeds up inspections and maintenance with minimal manpower.
Installation & Maintenance
The monoblock frame drops into a prepared recess and self‑aligns for a flush fit. Routine maintenance requires only checking hinge pins, lubricating locking bolts, and clearing debris from seals—tasks completed in minutes to limit operational downtime.
Compliance & Quality Assurance
Each unit is third‑party certified (AFNOR NF, BSI Kitemark) and CE‑marked, meeting HA 104/09 and BS 7903 highway standards in the UK. Production follows ISO 9001 quality protocols with regular factory audits to ensure ongoing conformity.
| Family: | Municipal |
| Packaging Qty: | 3 |
| Product Type: | Access Covers |
| Certified Class: | F900 |
| Standards: | EN124 |
| Surface Finish: | Anti-slip surface |
| Clear Opening Length (Hinge Side): | 1500 mm |
| Clear Opening Width: | 750 mm |
| Flange Outer Length: | 1660 mm |
| Flange Outer Width: | 950 mm |
| Frame Height: | 150 mm |
| Weight: | 391 kg |
| Watertight: | No |
| Cover/Grating Shape: | Double Triangular |
| Cover/Grating Length: | 796 mm |
| Hatch Cover/Grating Qty: | 2 |
| Cover Security Block Angle: | 90 |
| Hinged: | Yes |
| Hinge Type: | Ergo Hinge |
| Lock Type: | 1/4 Turnbuckle |
| Number of Locking: | 1 |
| Opening Direction: | Vertical |
| Frame Style: | Monoblock by Welding |
| Frame Shape on Vertical Section: | Flat |
| Frame Surface Protection By: | Water-Based Paint |
| Installation Type: | With Concrete |
| Installation On: | K2 Chamber |
| Handling Key: | Hook Handle / 517082 |
| Locking Key: | KEY OTCI / 514827 |
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 |
