Surface boxes

Surface Boxes and Access Covers: Certified Safety and Durability

Surface boxes and access covers are crucial elements in any urban infrastructure. Although often discreet, they guarantee the safety of pedestrians and vehicles, and protect access to essential underground networks. At Grupo Almagro Mur, we manufacture access solutions that combine maximum durability with strict regulatory compliance, ensuring exceptional long-term performance.

Guaranteed Quality with ISO 9001 Certification

With more than 28 years of experience manufacturing fittings for civil works, our reputation is based on reliability and excellence. We operate under a rigorous Quality Management System certified to UNE-EN-ISO 9001:2015. This certification is your guarantee that every surface box has been produced with top-quality materials and under controlled procedures, ensuring superior performance. For you, this translates into the peace of mind of installing a product designed to last.

Solutions for Every Need: Types of Surface Box

We understand that every project is unique. That is why we offer a versatile range of surface boxes and access covers to provide the optimum solution for every application.

• Ductile Iron Surface Boxes: The material par excellence for applications demanding superior resistance to heavy traffic, impact and fatigue. Our ductile iron surface boxes are designed to withstand the most severe conditions, guaranteeing a long service life and minimising maintenance costs.

• Composite Covers: For corrosive environments or where weight is a critical factor, composite offers an excellent alternative. This advanced material combines light weight—allowing installation by a single operative—with total resistance to rust and chemical agents. In addition, its zero scrap value effectively deters theft.

In addition, our technical department can develop bespoke solutions for projects with specific dimensions, shapes or security features.

The Key to Safety: EN 124 and Load Classes

Selecting the correct surface box is vital to the safety of any site. The European standard UNE-EN 124 governs the design and classification of these devices. All our products rigorously comply with this standard. Understanding its load classes is fundamental:

• Class B125 (12.5 tonnes): Suitable for pavements, pedestrian areas and car parks for light vehicles.

• Class C250 (25 tonnes): Installed on hard shoulders and in the kerbside gutter zone of streets.

• Class D400 (40 tonnes): Mandatory on carriageways, stabilised hard shoulders and parking areas for all types of vehicles, including heavy traffic.

Applications in Multiple Sectors

Our closure devices provide safe access to a wide variety of infrastructure:

• Water Networks: Essential for accessing and maintaining valves, meters and drainage chambers.

• Telecommunications and Electricity: They protect access points for fibre optic and electrical cabling.

• Valves and Meters: We offer specific solutions for burying valves and meters, making reading and maintenance easier.

Quick Selection and Installation Guide

To ensure optimum performance, follow these steps:

1. Identify the Location: Determine the load class required (B125, C250, D400) according to the traffic.

2. Check the Dimensions: Measure the clear opening of the chamber for correct selection.

3. Prepare the Seating: Install the frame on a level, solid concrete base.

4. Ensure it is Level: The frame must sit flush with the paving to avoid trips and wear.

Frequently Asked Questions (FAQ)

• What is the difference between ductile iron and grey cast iron? Ductile iron is more elastic and impact-resistant thanks to its graphite structure, which makes it much safer and more durable for the public highway.

• Is it mandatory for surface boxes to comply with EN 124? Yes, it is an indispensable requirement to guarantee safety in areas used by pedestrians or vehicles.

• Can a surface box be customised with a logo? Yes, we customise covers with logos or service names to reinforce corporate identity.

• How is cover noise avoided when vehicles pass over? Our high-precision designs and the use of sound-deadening gaskets ensure a perfect fit that eliminates vibration and noise.

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