Choosing Ductile Iron Surface Box: Application Fit and Specification Checks

1. Start with your project constraints

Write down these points before you compare any surface box:

• Application: Is the box for water and sewerage, telecommunications, electrical installations or general utility maintenance?
• Installation location: Will it sit in a footpath, a verge, a roadway or another surface? This decides the load rating you need.
• Fit: What opening size, base size and depth does the pipework or fitting underneath require?
• Security: Do you need to stop unauthorized people from opening the cover?
• Compliance: Does your market or project specification name a standard, a load class or test documents?
• Logistics: What quantity, packing, payment terms and delivery window do you need?

2. Material and corrosion protection

The listing gives the material as ductile iron GGG500-7. The surface can be finished with black or blue bitumen painting, or epoxy coating. The supplier says the box is designed to resist corrosion. If your site has aggressive soil, standing water or de-icing salts, specify which coating you want and ask for the coating details for your order. The listing does not give coating thickness or test results.

The related search term "cast iron surface box" is sometimes used loosely. The material confirmed for this product is ductile iron GGG500-7, so write that grade into your purchase specification.

3. Dimensions and weight

The published specification table lists one standard surface box with these values:

The height entry is listed as "Ø270mm", which is a diameter notation. Ask the supplier to confirm the actual height and the inner clear opening before you finalize the order. The listing also says the dimensions can follow the client's drawing and that the box comes in various sizes and configurations. If the standard size does not suit your fitting, send a dimensioned drawing.

4. Access, locking and customization

The listing mentions adjustable hinges and easy-access covers, and it says a lock device is available to prevent unauthorized access. Customization options include logo engraving and specific color choices. Production uses an automatic machine process. If you need covers marked with a utility owner's name or a service type (for example, water), give the exact text when you order.

5. What the listing does not confirm

• a load class or traffic rating
• a compliance standard (for example, a national or regional standard for access covers)
• third-party certifications or test reports
• pricing

Do not assume this ductile iron surface box suits carriageways or heavy-traffic areas just because it is made of ductile iron. If your project requires a load class or certificate, ask HEBEI YONGQIAN TRADING CO.,LTD. for written confirmation. If the supplier cannot document it, this product should not be selected for that application.

6. Packing, payment and shipment

According to the listing, units are packed by pallet or wooden carton. The standard size is listed at 100 pcs per pallet. Shipment is by sea, payment terms include L/C, T/T and D/P, and the listed delivery time is 30 days. Delivery time can vary with order quantity and customization, so confirm it for your specific order.

Quick selection checklist

1. The application is utility access (water, sewerage, telecom, electrical or similar).
2. Ductile iron GGG500-7 is acceptable to your specification.
3. You have chosen a coating: bitumen (black or blue) or epoxy.
4. Upper size, bottom size and height have been confirmed, or a drawing has been supplied.
5. You have decided whether you need a lock device.
6. Logo or color requirements have been defined.
7. The load class and any certificates have been confirmed in writing. If not, do not use the box where they are required.
8. Packing, payment terms and delivery date have been agreed for the order.

For product details, visit www.hbyqmetal.com and confirm specifications and purchasing requirements directly with HEBEI YONGQIAN TRADING CO.,LTD.