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>> Product Introduction
Drain trench covers are heavy-duty grates designed to provide safe, durable coverage for drainage channels, trenches, and culverts. Made from cast iron, galvanized steel, or composite materials, they ensure high load-bearing capacity while allowing efficient water flow.
Key Features:
High strength (supports 5-25 tons, depending on material)
Slip-resistant surfaces (serrated or grating designs)
Corrosion-resistant (suitable for outdoor/industrial use)
Easy installation & maintenance (removable for cleaning)
Applications: Roadside drainage, industrial plants, parking lots, and municipal wastewater systems.
Keywords: heavy-duty trench grating, drainage cover grates, industrial trench covers
>> Product Advantage
1. Exceptional Load-Bearing Capacity
Our EN124-compliant trench covers support 5-25 tons (Class A15-F900), with ductile iron options reaching 40-ton capacity – ideal for highways and industrial zones. Third-party tested with 2 million fatigue cycles.
*Keywords: heavy-duty trench grating, high-load drainage covers, EN124 compliant grates*
2. Advanced Anti-Slip Safety
Deep serrations (5-8mm) or epoxy grit coating achieves 0.85+ friction coefficient, exceeding DIN 51130 R10 standards for wet/oily environments like fuel stations.
Keywords: non-slip trench covers, OSHA-compliant drainage grates, slip-resistant channel covers
3. Corrosion-Resistant Materials
Choose from:
Ductile iron (EN-GJS-500-7) with 300μm epoxy coating
Galvanized steel (100μm zinc)
FRP composite for chemical plants
Keywords: corrosion-proof trench grating, chemical-resistant drain covers, marine-grade grating
4. Quick-Install Design
Pre-drilled bolt holes and interlocking edges enable 50% faster installation vs. traditional covers. No welding required – 1 worker can install 20m/hour.
Keywords: modular trench covers, easy-install drainage grating, removable access grates
5. Low Lifetime Costs
20-year lifespan with zero maintenance (epoxy-coated iron). Recyclable materials reduce disposal fees by 60% vs. concrete alternatives.
Keywords: maintenance-free trench covers, sustainable drainage solutions, long-life grating systems
Technical Trust Builders:
Certified load testing (EN124, BS EN 1433)
Salt spray resistance >5,000 hours (ISO 9227)
Custom markings (logo/load class embossing)
Long-Tail Keywords:
40-ton capacity ductile iron trench cover
fuel station anti-slip drainage grates
chemical plant composite trench covers
quick-release drainage channel grating
municipal stormwater trench covers
>> Technical Parameters
| Parameter | Specification | Standard Compliance |
| Material Options | • Ductile Iron (EN-GJS-500-7) | EN 124 / ASTM A536 |
| • Galvanized Steel (Q235) | ||
| • FRP Composite | ||
| Load Classes | A15 (1.5t) to F900 (90t) | EN 1433 |
| Custom: Up to 40t axle loads | ||
| Dimensions | Standard: 500x1000mm | ISO 9001 |
| Max: 600x1200mm | ||
| Thickness: 30-80mm | ||
| Surface Treatment | • Epoxy Coating (300μm) | DIN 51130 |
| • Hot-dip Galvanized (100μm) | ||
| • Grit Texture (R10-R13) | ||
| Drainage Open Area | 30-70% (slot/grating patterns) | EN 1433 |
| Slot Width: 5-15mm | ||
| Corrosion Resistance | 5,000+ hrs salt spray (ISO 9227) | ISO 12944 |
| H₂S resistant (wastewater) | ||
| Impact Resistance | Charpy Test: ≥27J at -40°C (ductile iron) | EN 10045-1 |
| Fire Rating | Class A1 (non-combustible) | EN 13501-1 |
| Weight | 15-45kg/unit (size/material dependent) | N/A |
| Installation | • Bolt-on (M16) | EN 124 |
| • Hinged | ||
| • Quick-release clamps |
Additional Technical Notes:
Custom Fabrication: Laser-cut logos/load class markings (±1mm precision)
Testing: Third-party certified for fatigue (2M cycles at max load)
Accessories: Available with locking mechanisms and rubber seals
Lead Time: 7-15 days (standard), 3-4 weeks (custom)
Keywords for Technical SEO:
EN124 compliant trench cover specifications
90-ton load drainage grate technical data
corrosion-resistant ductile iron grate parameters
slot drainage cover dimensional standards
Why This Table is Effective:
Material Comparison - Clearly shows differences between iron/steel/FRP
Certification Focus - Highlights EN/ISO standards critical for infrastructure projects
Precision Metrics - Includes coating thickness, slot widths, and impact values
Installation Flexibility - Shows multiple mounting options
Customization - Notes logo/label capabilities
Need to add chemical resistance charts or comparison tables vs. concrete alternatives?
Sample Engineering Query Solution:
Need trench covers for an airport fuel farm with 25t load capacity and spark-proof properties.
→ Recommendation: *Epoxy-coated ductile iron, Class D400, R13 grit surface, 50% open area.
>> Product Uses
1. Road & Highway Drainage
Designed for Class A15-F900 load ratings, our trench covers withstand heavy traffic (up to 90-ton axle loads) while preventing debris clogging. Galvanized steel options resist road salt corrosion.
Keywords: highway drainage grates, road trench covers, heavy-duty stormwater grating
2. Industrial Facilities
Used in factory yards and loading docks, ductile iron covers (40-ton capacity) support forklifts. FRP versions provide chemical resistance in acid wash areas.
Keywords: industrial trench grating, chemical plant drainage, forklift-rated covers
3. Municipal Wastewater Systems
Epoxy-coated iron covers endure H₂S gas in sewer systems. 50-70% open area ensures uninterrupted flow during heavy rains.
Keywords: sewer trench covers, wastewater drainage grates, corrosion-proof access lids
4. Fuel Stations & Airports
Non-sparking aluminum or grit-coated iron covers meet ATEX Zone 1 standards. Slotted designs prevent fuel accumulation.
Keywords: explosion-proof trench covers, airport fuel farm grating, anti-static drainage
5. Commercial Landscapes
Decorative cast iron covers (vintage/ornamental patterns) blend with urban hardscapes while handling 5-ton pedestrian loads.
Keywords: architectural trench grating, landscape drainage covers, aesthetic grates
6. Ports & Marine Terminals
316 stainless steel resists saltwater corrosion on dock drainage channels. Reinforced frames withstand container loader traffic.
Keywords: marine trench covers, port drainage systems, saltwater-resistant grates
>> Product Operate Guide
Proper Installation
Align covers with trench edges, ensuring even load distribution. Use M16 bolts or hinged clamps for secure fastening.
Load Management
Place heavy loads over support beams, not unsupported spans. Never exceed rated capacity (5-90 tons).
Debris Prevention
Regularly clear slot openings to maintain drainage flow. Pressure wash quarterly in high-debris areas.
Corrosion Control
For epoxy-coated covers, inspect annually for coating wear. Touch up chips promptly with matching epoxy paint.
Safety Check
Verify anti-slip surfaces remain effective. Replace if serrations wear below 3mm depth.
Keywords: trench cover installation, drainage grate maintenance, heavy-duty cover safety
>> Product Video
>> FAQ
1. What load classes do you offer?
We provide EN124-compliant covers from Class A15 (1.5t) to F900 (90t). Custom options available for specialized projects like airports/military bases.
2. How do I prevent theft?
Our bolt-down and hinged designs deter theft. Optional locking mechanisms with unique keys provide added security.
3. Can covers withstand chemical exposure?
Yes. Epoxy-coated (300μm) and FRP covers resist acids, fuels, and wastewater chemicals (pH 1-14).
4. Are slot patterns customizable?
Absolutely. Choose 5-15mm slots or grating patterns (30-70% open area) to match flow requirements.
5. What’s the lifespan?
20+ years for epoxy-coated iron in harsh environments. Galvanized steel lasts 15+ years with proper maintenance.
Keywords: trench cover load ratings, anti-theft drainage grates, chemical-resistant covers