Product Focus: Heavy-Duty Gully Grating

I. Product Overview

We manufacture and supply Gully Gratings designed for surface water drainage applications in roads, parking areas, and commercial precincts. Our gratings are produced to EN124 D400 load class specifications, ensuring reliable performance under heavy traffic conditions. These products combine functional drainage capability with robust construction for long service life.

II. Standards and Load Classification

Our gully gratings are manufactured in compliance with EN124, the European standard for Manhole Covers and gully gratings for vehicular and pedestrian areas.

The D400 load class rating indicates suitability for installation on carriageways, including roads, highways, and parking areas, where vehicles including trucks and heavy goods traffic are present. D400 gratings are tested to withstand a maximum load of 400 kilonewtons without fracture or permanent deformation.

III. Product Dimensions

Standard Size Options:750 x 200 millimeters – A commonly specified size for roadside drainage channels and commercial applications. This size offers an optimal balance between drainage capacity and structural integrity.

Additional sizes are available upon request to suit project-specific requirements. Custom dimensions can be manufactured based on customer drawings or site specifications.

IV. Materials and Construction

Gratings are manufactured from high-quality cast iron, providing excellent strength and durability.

Ductile Cast Iron – Higher strength alternative with improved impact resistance and elongation properties. Recommended for areas with heavier loading or where impact loads are a concern.

Construction Features:

Product weight is sufficient to ensure stable positioning and resistance to displacement under traffic loads. The design incorporates drainage slots optimized for water flow while preventing the passage of larger debris. Self-cleaning slot geometry reduces the risk of clogging. A non-slip surface pattern provides traction for vehicles and pedestrians in wet conditions. An anti-removal locking mechanism is available as an option.

V. Applications

Our EN124 D400 gully gratings are suitable for the following installations:

Roads, highways, and urban carriageways. Airport aprons and service roads. Industrial yards and factory access areas. Commercial parking facilities and multi-storey car parks. Ports, docks, and logistics hubs. Service stations and vehicle handling areas. Pedestrian zones requiring heavy-duty drainage.

VI. Quality Assurance

Each product is manufactured under strict quality control procedures. Raw material chemical composition and mechanical properties are verified through certified testing. Dimensional checks are performed to ensure compatibility with mating frames and channels. Load testing is conducted as required to confirm compliance with EN124 standards. Surface finish is inspected to ensure product meets appearance and functional requirements.

Test certificates, material reports, and inspection documentation are available upon customer request.

VII. Installation and Maintenance

Installation:

The frame should be cast into concrete or securely bedded on a prepared base. The grating is then positioned into the frame ensuring proper seating. Locking pins or screws should be engaged to secure the grating. The top surface level should be set flush with the finished surface grade.

Maintenance:

Periodic removal of accumulated debris ensures optimal flow capacity. Routine inspection for damage or wear is recommended following heavy usage. Grating can be removed for cleaning and easily replaced if required.

VIII. Customization Options

We accept requests for custom dimensions outside the standard range. Special coating or painting for color coding or additional corrosion protection is available. Logos, markings, or other identification can be cast into the product surface upon request.

For technical specifications, quotation requests, or to discuss project requirements, please contact our sales department.