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Hot-Dip Galvanized Steel Drainage Grating High Flow Capacity Industrial Pavements
Product Introduction
Designed for industrial drainage challenges, our Hot-Dip Galvanized Heavy-Duty Steel Drainage Grating combines rugged durability with exceptional water management. Constructed from 5mm-thick Q355B steel flat bars, the grating features 25mm-wide slots and an 83% open area, achieving a flow rate of 15 m³/h per m² – 3x faster than concrete drains. The hot-dip galvanized finish (85μm zinc coating) resists oil, chemicals, and abrasion, making it ideal for truck yards, fuel stations, and wastewater treatment facilities.
Data Sheet
Parameter
Details
Material
Q355B carbon steel, hot-dip galvanized
Flat Bar Size
50x5mm (standard), 60x6mm for extreme loads
Slot Width
25mm (optimized for debris retention while maximizing flow)
15 m³/h per m², suitable for 100-year storm events
Corrosion Resistance
Passed 2,000-hour salt spray test (ASTM B117), pH 2-12 chemical resistance
Panel Size
Standard: 2000x1000mm, 4000x1000mm (custom lengths up to 6000mm)
Production Process
Heavy-Duty Fabrication:
Flat bars are plasma-cut and deburred for precision slot spacing (25mm ±1mm).
Cross bars welded at 100mm intervals using robotic welding (weld strength ≥5kN per joint).
Galvanization for Harsh Environments:
Dual-layer process: First zinc immersion for corrosion protection, then epoxy primer for chemical resistance (optional for industrial zones).
Debris Retention Design:
Slots angled at 15° to trap larger debris (≥30mm) while allowing water to pass through, reducing maintenance frequency.
Quality Assurance:
Load testing with 20-ton hydraulic press to simulate truck traffic.
Flow rate measured in controlled rainfall simulations
Key Advantages
1. Industrial-Grade Drainage Performance
Rapid Water Removal: 83% open area prevents water pooling, critical for safety in wet industrial environments.
Debris Management: Angled slots reduce clogging, cutting maintenance costs by 50% compared to traditional grates.
2. Unmatched Durability
20+ Year Warranty: Galvanized coating withstands heavy machinery, oil spills, and saltwater.
Impact Resistance: Survives 10-ton dropped pallet tests without deformation, meeting NCHRP 350 standards for highway applications.
3. Installation & Cost Efficiency
Modular Design: Lightweight panels (32kg/m²) lift by hand, speeding installation by 40% vs. concrete drains.
Lower Lifecycle Cost: 40% cheaper than cast iron grates over 20 years, with zero replacement costs for rust damage.
4. Environmental Compliance
Chemical Resistance: Suitable for capturing oil/chemical spills in compliance with EPA stormwater regulations.
Applications
Industrial Pavements: Truck yards, aircraft hangars, and factory driveways.
Infrastructure Drainage: Highway medians, bridge decks, and tunnel entrances.
Wastewater Facilities: Treatment plant walkways, sump covers, and drainage channels.
Commercial Sites: Parking garages, fuel station aprons, and outdoor dining areas prone to flooding.
FAQ
Q1: Can this grating handle acidic wastewater? A: Yes. The optional epoxy coating provides pH 2-12 resistance, suitable for chemical plant drainage.
Q2: What is the maximum vehicle weight it can support? A: The 60x6mm flat bar model supports up to 40-ton trucks when installed on 200mm centers.
Q3: How do I prevent debris from blocking the slots? A: Use our optional debris baskets (sold separately) or specify 15mm slots for fine debris control.
Q4: Can I get a sample with custom slot spacing? A: Yes. Free 1m² samples with your specified slot width are available within 7 working days.
Request a Quote Today – Get a Free Sample for Your Project!
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2002
Total Annual:
1000000-5000000
Employee Number:
200~500
Ecer Certification：
Verified Supplier
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