Stainless Steel Grating Manhole Covers  

Technical Specifications of Stainless Steel Drainage Grates & Manhole Covers

• Dimensions (mm): 500×500 – 1000×1000
• Load Capacity (kN): A15 to F900

Core Advantages of Stainless Steel Drainage Grates & Manhole Covers

1. Exceptional Load-Bearing & Drainage Efficiency
   • Load Distribution: Our innovative grid design evenly distributes concentrated loads to the frame, achieving up to ≥5 tons/m² capacity (D400 grade) and passing 1 million dynamic fatigue cycles, ensuring long-lasting performance.
   • High Drainage Rate: The open design allows for a 90%+ drainage rate, effectively channeling rainwater and cutting flood risks. This increases drainage efficiency by up to three times compared to traditional covers.
2. Ultimate Corrosion Resistance & Longevity
   • All-Weather Durability: Made from 316-grade stainless steel, our drainage grates undergo ≥3000 hours of salt spray testing (ISO 9227), ensuring a service life of 50+ years even in harsh environments.
   • Chemical Resistance: These grates tolerate pH 2–12 environments, making them perfect for demanding applications like wastewater plants and chemical factories.
3. Safety-Functional Integration
   • Anti-Slip & Anti-Glare: Featuring serrated or sandblasted surfaces, these grates provide R11 slip resistance (EN 1433) in wet conditions, reducing the risk of accidents in high-traffic areas.
   • Clog-Free Design: The large 50×50mm apertures minimize debris buildup, reducing maintenance efforts by up to 60% and ensuring efficient water flow without frequent cleaning.
4. Lightweight & Easy Installation
   • Reduced Weight: With 1/4 the weight of cast iron, a standard 1×1 meter grate weighs just ~25kg, allowing single-person handling for ease of transport and installation.
   • Modular Assembly: The snap-fit or bolted connection design ensures quick installation, reducing setup time by up to 70%. Additionally, partial replacements or site expansions are made simple.
5. Eco-Sustainability & Smart Compatibility
   • 100% Recyclable: Our stainless steel grates are 100% recyclable, reducing carbon emissions by 80% compared to new production. These grates help support LEED certification and promote sustainability.
   • IoT Integration: The frame slots are compatible with water level sensors and flow meters, enabling real-time data transmission to smart city platforms for enhanced monitoring and efficiency.

Key Applications for Stainless Steel Drainage Grates & Manhole Covers

1. Municipal Drainage Systems: Ideal for roadside gutters, stormwater grates, and areas prone to heavy rain, ensuring fast drainage and leaf-blocking capabilities.
2. Industrial Facilities: Perfect for use in chemical plants, dock unloading zones, and high-impact areas where corrosion resistance is essential.
3. Landscape & Architecture: Permeable pavements for plazas, parks, and building façade vents, blending functionality with aesthetic appeal.
4. Rail Transit: Suitable for subway platform drains, tunnel maintenance corridors, providing slip-resistant, easy-to-clean surfaces.

Load-Bearing Grades for Stainless Steel Drainage Grates & Manhole Covers

• A15–F900 Load Grades
  • Group 1 (Minimum: A15): Green belts, sidewalks, non-motorized zones.
  • Group 2 (Minimum: B125): Sidewalks, bike lanes, car parks, and underground garages.
  • Group 3 (Minimum: C250): Residential areas, alleys, light vehicle zones (within 0.5m of curbs).
  • Group 4 (Minimum: D400): Urban main roads, highways, expressways.
  • Group 5 (Minimum: E600): Freight terminals, docks, airports.
  • Group 6 (Minimum: F900): Airport runways, requiring the highest load resistance.

Choose our stainless steel drainage grates & manhole covers for superior durability, safety, and eco-friendly performance. Perfect for a wide range of applications, they offer long-lasting reliability, easy installation, and advanced technology integration, making them the ideal choice for modern infrastructure projects.