Road and utility infrastructure is incomplete without the use of industry-grade manhole covers. We at Dutco Tennant LLC supply premium quality covers that not only elevates infrastructures but also ensures your investments are made in the right area.
Speaking about these covers, there are just too many options and making the right decision is important to get the most out of it. Afterall, not every manhole cover fits the needs of a specific environment.
In this article, we give narrow down top factors that you can consider for making the most appropriate choice for the covers. Explore them now.
Type of Material
The type of material that the covers are made of, determines their durability and overall quality. The right material ensures the longevity and reliability of manhole covers.
Going with the robust material such as cast iron manhole covers is favourable. This is because of their proven strength and ability to take on environmental wear and tear.
They are not just strong material but also can withstand corrosion, heavy loads and harsh weather. All of this combined makes them an industry favourite. Aside from cast iron, ductile iron is also a great choice of material that is used to manufacture durable manhole covers.
Provided they are lightweight in comparison to cast iron made covers.
Load Capacity
Different locations have varying traffic loads, and manhole covers need to be chosen based on the load capacity required. Urban areas with heavy vehicular traffic, including trucks and buses, demand covers that can endure significant weight and stress.
Covers are usually classified based on their load-bearing capability. These are:
A15 - It is classified for pedestrian-only areas and can withstand a 15kN load test. For example, bicycles.
B125 - This is for low traffic areas where there is medium-weight load such as driveways, shopping precincts, etc. These manhole covers can withstand a 125kN load test.
C250 - It can take on a 250kN load test and is used in areas where it does not go more than 500mm from the kerb face into the carriageway.
D400 - This classification is designed specifically for areas with heavy vehicular traffic. D400 are heavy-duty manhole covers that are perfect for use in highways, high traffic roads, etc.
These are the standard load capacity classifications available, while there are more specialised categories to meet particular project demands.
Safety Features
The primary purpose of manhole covers is to prevent anything and anyone from falling in. Keeping that in mind, safety is a priority when it comes to design and selection of manhole covers.
The modern designs are equipped with safety features that improves the functionality of the product and ensures utmost safety. Let’s see a few of the features that are found in best covers.
Non-slip or Anti-skid surface finish: The design ensures preventing accidents, especially in wet or icy conditions.
Locking mechanism: Essentially to keep unauthorised access or tampering at bay.
Leak-proof seal: Particularly comes handy in drainage or sewage applications.
Hinging: It reduces the risk of accidental displacement or falling.
These manhole cover safety features assure safety of both pedestrians and maintenance workers.
Regulatory Compliances
Manhole covers need to comply with local standards and regulations to ensure they meet safety, performance, and environmental standards. This can include specifications for material, load capacity, size, and installation requirements.
Regulatory compliance not only ensures public safety but also helps avoid legal complications or fines.
Always consult local guidelines and verify that the selected manhole cover aligns with regional safety codes and industry standards. Some of the common standards include:
EN-124 - This is the European Standard that classifies manhole covers based on their load-bearing capacity and provides specifications for materials, dimensions, and testing methods.
ASTM - The American Standard or ASTM outlines the design, materials, and testing procedures for heavy-duty airport manhole covers. The ASTM compliance ensures they can withstand the unique challenges of airport environments.
Maintenance Needs
Lastly, the maintenance and inspection needs of a manhole cover are essential for its long-term performance. Regular upkeep ensures that the cover remains functional and safe, avoiding costly repairs or replacements.
When selecting a cover, opt for materials that are easy to clean and resistant to wear, and establish a routine inspection schedule. Features such as hinged designs or lightweight covers can also simplify maintenance and access for repairs.
Manhole Covers from Crescent Foundry
Crescent Foundry is our trusted partner that makes up for the supply of our manhole covers. It is the one of the leading manufacturers and largest exporter of high-quality cast iron and ductile iron manhole covers.
Their products are developed meticulously for drainage and sewerage applications. They have manhole covers manufactured according to the globally accepted EN-124 and ASTM standards.
With over 5000 patterns readily available for production, they utilise advanced CNC machines for pattern making. This allows them to develop new patterns within two weeks.
The manhole covers offered by them come with complete safety and easy accessibility and enhanced service life. Engineered for heavy-duty performance, their solutions provide reliable access in different environments and for various applications.
Get Ready to Meet Crescent Foundry at WETEX 2024
We at Dutco Tennant LLC are so excited to be bringing Crescent Foundry in our showcase for WETEX 2024 exhibition. Visitors will get to discover their products and gain full insight on their offered products with firsthand experience.
Join us in Hall 7-G5 from 1-3 October 2024 at Dubai World Trade Centre. We welcome you all to witness the best of manhole cover solutions.
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