Manhole Cover

>> Product Introduction

Manhole covers are heavy-duty access lids designed for sewers, drainage systems, and utility tunnels. Made from ductile iron, cast iron, or composite materials, they provide secure, load-bearing coverage while allowing maintenance access.

Key Features:

• High load capacity (EN124 standards: A15-F900, up to 90-ton axle loads)

• Slip-resistant surfaces (raised patterns or grit coatings)

• Corrosion-resistant (epoxy-coated, galvanized, or polymer options)

• Anti-theft designs (locking bolts or tamper-proof hinges)

• Applications: Roads, pedestrian zones, wastewater plants, and telecommunication access points.

Keywords: *heavy-duty manhole cover, drainage access lids, EN124 compliant covers*

>> Product Advantage

1. Extreme Load-Bearing Capacity

Our EN124-certified covers withstand 15-90 ton axle loads (Class B125-F900). Ductile iron (EN-GJS-500-7) options feature 300μm epoxy coating for 25+ year lifespan in heavy traffic areas.

*Keywords: heavy-duty manhole cover, F900 load-rated lids, road-grade access covers*

2. Advanced Anti-Slip Safety

Deep diamond patterns (5mm raised) or grit coatings achieve 0.8+ friction coefficient, exceeding DIN 51130 R11 standards for pedestrian zones and fuel stations.

Keywords: non-slip sewer cover, OSHA-compliant manhole lids, slip-resistant drainage covers

3. Corrosion & Chemical Resistance

Choose from:

Epoxy-coated iron (5,000hr salt spray resistance)

Stainless steel (304/316) for acidic environments

Polymer composites for electrical insulation

Keywords: chemical-resistant manhole covers, marine-grade access lids, non-conductive utility covers

4. Theft Prevention Systems

Locking bolts (unique key patterns)

Tamper-proof hinges with shear pins

GPS-embedded composite options available

Keywords: anti-theft sewer covers, secure utility access lids, vandal-proof manhole systems

5. Quiet & Rattle-Free Design

Rubber-sealed frames reduce noise by 70% vs. traditional covers. Precision-machined tolerances (±1.5mm) eliminate vibration in urban areas.

Keywords: noise-reducing manhole covers, vibration-free access lids, municipal quiet pavement systems

Technical Trust Builders:

Third-party tested – EN124 dynamic load certification

5-year warranty on epoxy-coated models

Custom markings – Embossed logos/load class indicators

Long-Tail Keywords:

90-ton capacity ductile iron manhole cover

fuel station non-slip access covers

corrosion-proof sewer lid specifications

lockable utility manhole covers

low-noise municipal drainage covers

>> Technical Parameters

Additional Notes:

Custom Fabrication: Laser-engraved logos/load class (卤1mm precision)

Testing: Third-party certified for fatigue (2M cycles at max load)

Accessories: Available with anti-slip inserts and flood prevention seals

Lead Time: 10-15 days (standard), 4 weeks (custom)

Technical Keywords for Engineers:

EN124 manhole cover specifications

90-ton load drainage cover data

corrosion-resistant ductile iron covers

lockable utility access lid parameters

low-noise municipal manhole standards

>> Product Uses

1. Urban Roadways & Highways

Designed for EN124 F900 (90-ton) loads, our ductile iron covers withstand continuous heavy truck traffic. Epoxy-coated versions resist road salt corrosion for 25+ years in freeze-thaw cycles.

Keywords: highway manhole covers, heavy-duty road access lids, municipal drainage covers

2. Pedestrian Zones & Plazas

Anti-slip diamond patterns (R11 rating) and low-noise rubber seals enhance safety in crowded areas. Composite options allow decorative designs matching urban aesthetics.

Keywords: pedestrian manhole covers, slip-resistant access lids, architectural drainage covers

3. Wastewater Treatment Plants

H₂S-resistant epoxy coatings (300μm) prevent corrosion in sewer systems. Locking bolts secure hazardous access points.

Keywords: sewer manhole covers, wastewater access lids, chemical-resistant drainage covers

4. Oil/Gas Facilities & Airports

Non-sparking composite or stainless steel covers meet ATEX Zone 1 standards. Grit surfaces prevent fuel accumulation.

Keywords: explosion-proof manhole covers, fuel farm access lids, airport drainage systems

5. Telecommunications & Utilities

Lightweight polymer covers (50kg) with RFID tags enable easy access to underground cables. Tamper-proof hinges deter vandalism.

Keywords: utility access covers, telecom manhole lids, vandal-proof service entries

6. Marine & Port Infrastructure

316 stainless steel models resist saltwater corrosion on docks. Flood-proof seals prevent water infiltration during tides.

Keywords: marine manhole covers, port drainage lids, saltwater-resistant access systems

>> Product Operate Guide

• Proper Installation

Ensure the frame is level and bedded in concrete (C25 grade minimum). Align cover seating surfaces flush with pavement (±3mm tolerance).

• Load Distribution

Position heavy traffic loads over structural supports – never exceed the rated class (A15-F900). Avoid impact from excavators.

• Anti-Theft Measures

For high-risk areas, use M30 shear bolts or 3-point locking systems. Register keys with municipal authorities.

• Noise Reduction

Install rubber gasket seals (included) to reduce traffic noise by 15dB. Re-grease annually.

• Maintenance

Inspect every 6 months for:

Coating wear (epoxy <200μm)

Frame settlement (>5mm)

Lock mechanism function

Keywords: manhole cover installation, drainage cover maintenance, anti-theft utility access

>> Product Video

>> FAQ

1. What’s the difference between ductile iron and cast iron covers?

Ductile iron (EN-GJS-500-7) offers 2X higher strength and better impact resistance than cast iron, with 25+ year lifespan versus 15 years. Both meet EN124 standards.

2. How do I prevent cover theft?

Use shear bolt locks (M30) or 3-point locking systems. GPS-embedded composite covers also enable real-time tracking.

3. Are epoxy-coated covers suitable for coastal areas?

Yes. 300μm epoxy withstands 5,000+ salt spray hours (ISO 9227). For extreme marine environments, 316 stainless steel is recommended.

4. Can covers be customized with logos?

Yes. We laser-engrave municipal logos, load class markings, or QR codes (±1mm precision) for easy asset management.

5. What’s the maintenance requirement?

Inspect annually for coating wear (>200μm remaining) and frame settlement. Re-grease locking mechanisms every 2 years.

Keywords: ductile vs cast iron covers, anti-theft manhole lids, coastal drainage covers