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Tapalum 2006 S.L complies with the EN 1253 standard: EN 1253 comes to alleviate the deficiencies of the almost universal reference standard, EN 124, which does not contemplate the specifications for when these covers are placed inside buildings

The EN 124 Standard has become the almost universal reference for manhole covers. Its objective is to regulate the design and functionality of the covering and closing devices for circulation areas used by vehicles, in fact, to reference all types of manhole covers. The best known aspect of this standard is the classification it establishes based on the place of installation and the resistance that must be required. However, it sets other types of specifications and limitations that, being suitable for a device to be installed outside, can be counterproductive for a cover that will be placed inside a building. Therefore, it is not surprising that manufacturers of interior access covers have discarded this standard and designed them according to their own criteria. The EN 1253 standard comes to alleviate these deficiencies. It classifies the sumps and siphons, sets guidelines regarding the places of installation and specifies the requirements for their design and manufacture, regardless of the material used for their production. Specifically, the fourth part of this standard refers to access covers. Specifically, it regulates two fundamental aspects: the resistance that they must withstand depending on their place of installation and the level of tightness. In addition, it establishes the tests that must be carried out and sets the guidelines for marking the products. Regarding resistance, it establishes the following classification:

• Class H 1.5: unused flat roofs, such as gravel and felt-lined roofs, gravel-filled roofs and the like.

• Class K 3: areas without vehicle traffic, such as public bathrooms or showers, balconies, galleries, terraces and covered with vegetation.

• Class L 15: areas with light vehicle traffic, excluding forklift trucks, used in commercial areas.

• Class M 125: areas with vehicular traffic, such as parking lots, factories and workshops.

• In areas where the covers are subjected to special stresses, such as exhibition halls, markets, factory sheds and aircraft hangars, classes C 250 to F 900 of the EN 124 Standard will be used. Regarding sealing, they are grouped into these classes:

• Wt class: watertightness. The covers must prevent the entry of rainwater that does not exert hydrostatic pressure. • Class Ot: tightness to odors. The covers must prevent the escape of stale air.

• Class Bt: backflow tightness. In the event of overloading of the drainage system, the covers must prevent the water from escaping for a pressure of 0.5 bar. In short, the installation of manhole covers in buildings that comply with the requirements of the EN 1253 Standard will ensure the comfort of its occupants and provide security for those who prescribe and install them.

RATES

Casing covers or cast aluminum logs suitable for installation indoors

Watertight aluminum casing covers in reversible format.

Usually used as Anti-odor, they prevent leakage of liquids, protect electrical connections, etc … by fixing with screws + vulcanized EPDM rubber gasket.

Available in sizes from 200 x 200 to 1000 x 1000 mm in reversible format.

Recommended for installation in markets, industrial pavilions, garages, commercial premises, restaurants with industrial kitchens, etc …

Aluminum has physical properties that withstand corrosion with total guarantee.

*It is not the same with materials such as galvanizing or pvc that are oxidized, broken, etc … Well by the manufacturing process where welding (galvanized) and the properties of the material itself or by the quality of own material , Being in this case both contaminants.

Physical properties of aluminum:

  • Aluminum is a chemical element, with symbol Al and atomic number 13. It is a non-ferromagnetic metal.
  • It is the third most common element found in the terrestrial crust.
  • Aluminum compounds make up 8% of the earth’s crust and are present in most rocks, vegetation and animals.
  • In the natural state it is found in many silicates (feldspar, plagioclase and micas).
  • As the metal is extracted only from the mineral known as bauxite, it is first processed into alumina by the Bayer process and then metal aluminum by electrolysis.
  • This metal has a combination of properties that make it very useful in materials engineering, such as its low density (2700 kg / m³) and its high resistance to corrosion.
  • Suitable alloys can significantly increase their mechanical strength (up to 690 MPa).
  • It is a good conductor of electricity and heat, it is easily machined and very cheap.
  • For all this, since the middle of the XX century, the metal most used after steel.