Product Overview
This heavy‑duty ductile iron gully grating complies with EN124 D400 load class, manufactured from high‑strength ductile iron QT500‑7. Designed for road surface drainage, it efficiently removes rainwater while resisting heavy vehicle impact, compression and abrasion. Suitable for main roads, highway, logistics yards and heavy‑traffic zones. Robust casting structure ensures long‑term service life under harsh outdoor conditions.
Key Features
EN124 D400 Heavy Load Rating
Tolerates heavy truck loads, ideal for heavy‑traffic roadway applications.
01
Premium Ductile Iron QT500‑7
Excellent toughness, anti‑breakage, impact‑resistant, far better than grey cast iron
02
Optimized Slotted Opening
High water‑passing rate, effectively drains surface rainwater; prevents large debris from falling into drainage channel
03
Integrated Lifting Lugs
Convenient for installation, inspection and maintenance
04
Technical Parameters
| Material | Ductile Iron QT500‑7 |
| Standard | EN 124 |
| Load Class | D400 (400‑ton test load) |
| Surface Treatment | Municipal roads, highways, freight yards, parking lots |
| Custom Service | OEM & ODM, custom sizes, logos acceptable |
| Surface Treatment | Bitumen black painting |
Application Scenarios
Municipal main roads, highway roads, container terminals, logistics parks, large‑scale parking lots, industrial zones and other areas with frequent heavy‑vehicle passage. Perfect for roadside drainage gullies and channel drainage systems.
FAQ
Q: What does D400 load class mean?
A: D400 per EN124 means the grating can bear maximum test load 400kN, fit for roads open to heavy‑duty trucks and lorries.
Q: Is this grating easy to crack under repeated vehicle rolling?
A: Made of ductile iron QT500‑7, it owns good ductility, not brittle like grey cast iron, strong anti‑impact and anti‑crack performance.
Q: Can you produce non‑standard sizes?
A: Yes, OEM custom dimensions, pattern and logo are supported. Please provide your drawing or detailed requirement.
Q: What is the surface coating for?
A: Bitumen black paint provides anti‑rust performance, slowing oxidation in outdoor wet environment.
Q: Do you supply matching frame together with grating?
A: Yes, supporting complete set of grating and cast iron frame for installation.
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