Product Overview
This round perforated gully grating is crafted from high‑performance QT500‑7 ductile iron, manufactured in compliance with EN124‑2 European standard. Designed for heavy‑duty roadside rainwater drainage, the dense slotted openings enable rapid surface water infiltration into underground sewer system. It comes as a full assembly with reinforced outer frame, delivering stable installation, anti‑shift and noise‑suppression performance. Ideal for urban road drainage, highway shoulders, parking lots and storm‑water collection projects.
Key Features
High‑efficiency Perforated Drainage Design
Multi‑directional slot layout ensures high water‑passing capacity, intercepts large debris
QT500‑7 Ductile Iron Material
Excellent toughness and impact resistance, resists cracking under repeated vehicle compression
EN124‑2 Certified
Multiple load grades optional: B125, C250, D400 for diverse traffic‑load scenarios
Reserved Lifting Points:
Convenient for installation, clearing blockages and routine maintenanceon
Technical Parameters
| Item | Specification |
|---|---|
| Material | Ductile Iron QT500‑7 |
| Standard | EN 124‑2 |
| Shape | Round |
| Load Class | B125 / C250 / D400 optional |
| Components | Perforated grating + complete cast iron frame |
| Surface Treatment | Bitumen black painting |
| Application | Roadside drainage, storm‑water collection, municipal infrastructure |
| Customization | OEM diameter, engraved logos & symbols |
Application Scenarios
City municipal roads, highway edges, commercial parking lots, residential zones, port areas and other storm‑water drainage locations. Perfect fit for roadside catch basins and sewer inlets..
FAQ
Q: What load class is suitable for main traffic roads?
A: D400 grade is recommended for main roads with heavy truck traffic. C250 for city streets and parking lots; B125 for pedestrian zones.
Q: Can debris easily pass through the grating slots?
A: Slot size is rationally designed to drain rainwater while blocking large‑size rubbish, reducing pipeline blockage risk.
Q: Can I purchase only the grating without frame?
A: Yes, we can supply grating only or full set with frame as per customer requirements.
Q: Do you support non‑standard diameter sizes?
A: OEM service is supported. Please share your drawing, dimension and load‑class requirements.
Q: What's the function of bitumen paint coating?
A: It forms protective layer to resist oxidation and corrosion from rain, moisture and outdoor weather conditions.
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