The B125 350×350 mm Drop-In Single Seal Manhole Cover & Frame is a premium-grade access solution rigorously designed to comply with EN 124-2:2015 standards, ensuring reliability in urban infrastructure, residential complexes, and light traffic zones. Crafted from GGG500/7 ductile iron, this compact yet robust system combines effortless installation with advanced sealing technology, making it an optimal choice for engineers and municipal planners prioritizing compliance, durability, and cost-efficiency.
Key Features:
- EN 124-2:2015 Certification & Load Capacity
- Certified for D400/C250 load classes (up to 40 tons), ensuring safety in pedestrian walkways, driveways, and parking areas.
- Precision-engineered drop-in design simplifies installation, reduces labor costs, and guarantees secure frame alignment.
- High-Performance Single Seal Technology
- Integrated EPDM rubber gasket delivers a watertight seal, preventing water ingress, debris accumulation, and maintaining drainage efficiency.
- Smooth, non-slip surface minimizes trip hazards and operational noise during maintenance access.
- Superior Durability & Corrosion Resistance
- Constructed with GGG500/7 ductile iron (500 MPa tensile strength, 7% elongation) for exceptional impact resistance and structural longevity.
- Epoxy-polyester powder coating protects against rust, UV degradation, and chemical exposure, ideal for harsh environments.
- Space-Efficient & Aesthetic Design
- Compact 350×350 mm dimensions optimize functionality in confined urban spaces, including sidewalks, cycle paths, and landscaped areas.
- Neutral black/gray finish ensures seamless integration with asphalt or concrete surfaces.
- Global Compliance & Customization
- Certified to ISO 9001, CE, and compatible with ASTM A48 standards for international project adaptability.
- Optional anti-theft bolts, custom branding, or color-matched finishes available to meet specific project requirements.
Applications:
Ideal for municipal utilities, telecom networks, irrigation systems, and commercial/residential developments requiring reliable, low-profile access solutions.
Why Choose the B125 System?
As a trusted supplier to global infrastructure projects, we provide OEM/ODM support, third-party testing documentation, and bulk order logistics. The B125 manhole cover system balances European engineering precision, regulatory compliance, and long-term value—empowering contractors and planners to deliver projects on time and within budget.
| Family: | Municipal |
| Packaging Qty: | 36 |
| Product Type: | Connection Boxes |
| Product Ranges: | Quattro Range |
| Certified Class: | B125 |
| Standards: | EN124 |
| Surface Finish: | Anti-slip surface |
| Clear Opening Length (Hinge Side): | 350 mm |
| Clear Opening Width: | 350 mm |
| Flange Outer Length: | 450 mm |
| Flange Outer Width: | 450 mm |
| Frame Height: | 40 mm |
| Weight: | 15 kg |
| Mass Per Unit Area: | 79 kg |
| Watertight: | No |
| Cover/Grating Shape: | Square |
| Cover/Grating Length: | 417 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 |
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 |











