Choosing Galvanized Mild Steel Trench Road Gully Grate & frame C250 Standard: Application Fit and Specification Checks

1. Define your site requirements first

Before comparing specifications, write down:

• Location and traffic: whether the grate is for a garage, a factory workshop, a residential garden perimeter or an area that cars and lorries can reach.
• Required load class: the EN124 class named in your project specification or tender.
• Opening and frame size: the clear opening and outer frame size your gully or chamber needs.
• Corrosion protection: the coating or surface treatment your project specification calls for.
• Security and access: whether you need a hinged, openable grate with anti-theft features.

2. Published specifications for the C250 gully grate

The product listing gives these values:

The listing says the grate has a hinge connection, is easy to open and has an anti-theft function. The supplier states that the product meets the requirements of EN124, which it cites as "EN124:2:2015". It also describes the ductile iron as treated before casting to improve the weight-to-strength ratio and impact resistance.

3. Points to confirm before ordering

Some parts of the published listing don't agree with each other. Ask the supplier to settle these in writing:

• Material and finish: The product name says galvanized mild steel. The specification lists ductile cast iron GGG500-7 with bitumen painting. Corrosion performance, weight and compliance can differ between these, so confirm the actual material and coating for your order.
• Diameter: The summary gives a dimension of Ø700. The specification table gives a cover diameter of Ø712 mm and an external size of Ø812 mm. Confirm the exact dimensions against your chamber drawings.
• Class range and standard reference: The class lists in the listing don't match each other. One includes A15. Another contains "D00", which is probably meant to be D400. The standard also appears once as "E124". The item described here is the C250 version. If your site needs a different class, request the documentation for that class separately.
• Compliance: The grate meets EN124 requirements.

4. Application fit

The listing names these applications:

• Drainage in garages
• Drainage in factory workshops
• Perimeter drainage in residential gardens

The product description also mentions areas that cars and lorries can reach, including carriageways, hard shoulders and pedestrian areas. Because the listing names several kinds of use, check the stated C250 class against the exact location and traffic your project specification describes.

When this recommendation does not apply: The supplier's general text says ductile iron covers range from C250 to F900 and recommends them where fire trucks pass. That general statement does not mean this C250 item is suitable for that traffic. If your location needs a class above C250 (for example D400, E600 or F900), this product as documented is not the right choice. Specify the required class and ask for the matching product data.

5. Commercial terms

The listing gives China as the origin and a production capacity of 20,000 tons/year. It lists payment terms of T/T, L/C and D/P and a delivery time of 20–30 days. Treat these as listed information only. Confirm price, lead time, quantities and payment terms for your order directly with HEBEI YONGQIAN TRADING CO.,LTD.

Summary checklist

• Required class is C250: matches the listed loading capacity
• Clear opening of Ø600 mm and height of 100 mm fit your chamber: verify against drawings
• Material and coating (galvanized steel or bitumen-painted ductile iron) are confirmed in writing
• Hinged, anti-theft design is needed: listed feature
• Compliance documents meet your project's requirements: request them

For current specifications and purchasing requirements, contact HEBEI YONGQIAN TRADING CO.,LTD. through www.hbyqmetal.com.