Manhole covers function as protection against accidents. Another function of manhole covers is to prevent odors from escaping into the external environment and trap toxic gas fumes that form in exhaust pipes. It cannot be denied that airport manhole covers have a similar function to street manhole covers. Sturdy, quality manhole covers are very important to ensure public health and safety. There are 3 main guidelines for choosing the best manhole covers for airports.
Material
There are several types of materials commonly used for airport drainage covers, namely cast iron, steel, and ductile iron. Manhole covers at airports are designed to withstand a certain weight. Steel material is designed to withstand lighter loads than cast iron material because cast iron material is stronger.
The most ideal manhole cover material for airports is a ductile iron manhole cover because it has corrosion resistance, strong load-carrying capacity, and is resistant to corrosion so it is reliable and most suitable for airports. The ideal drainage cover for airports should be wear-resistant, strong, have good machinability, and be retractable.
Class and Quality
The airport drainage system must be well-designed because the airport needs to ensure safety and efficiency. Of course, the quality of the manhole cover is also an important parameter to determine good performance. Therefore, airports have several requirements regarding manhole covers.
Manhole cover manufacturers usually have cast iron with certain ratings such as A15, B125, D400, up to F900. A guide to knowing the weight capacity that a blanket can withstand can be found through these classes. The number at this class level indicates the maximum load capacity. Good quality manhole covers can be useful over long periods of use.
Customizable options
The size, pattern, specific specifications, and manhole cover requirements for each airport are not always the same. Customers can customize the pattern according to a specific design and can add a logo, year, load specifications, and company name.
Customers can also ask to add locks, hinges, and a leak-proof design to the hole cover. The relief or embossed feature on the surface of the manhole cover can function as an anti-slip feature during vehicle movement. Apart from that, the designs and motifs on manhole covers not only provide character but also provide functionality.
The load, utility, and location of the manhole covers greatly influence the selection of the manhole covers. Proper manhole covers can be one of the key elements that can improve overall airport performance. Make sure the selected manhole cover manufacturer complies with the license and has international product standards.
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