Rubber speed reducer of 3cm (black/yellow) 60cm x 47.5cm 3M

GENERAL DATA AND REGULATIONS

The speed reducers 3M are elevated devices, consisting of modular elements made of vulcanized natural rubber, with inserts of yellow reflective and anti-slip tape 3M Stamark Series A651.

In Italy, their use is regulated by the New Italian Traffic Code (art. 42) and by Law Decree No. 495 of 16.12.92. The three types of reducers are approved in that country.

In Spain, for the RIGE, these devices are mentioned in Royal Decree 1428/2003 General Traffic Regulation, although its complete regulatory development is pending. In its scope, different Autonomous Communities / Local Corporations have established specific regulations.

They are effective in reducing vehicle speed and preserving pedestrian safety in urban areas (low-speed zones and heavy traffic).

The three types of speed reducers from 3M have been approved by the Italian government for different installations.

DIMENSIONS

The modules of any type have interlocks that facilitate composition and distribute stresses over the series.

- Reducer h 3, for streets with speed limit < 50 Km/h:

• Central elements: 47.5 x 60 cm.
• Fixed with 4 screws
• Ends not available

INSTALLATION

The installation of the speed reducers is done using screws and expansion plugs that allow for optimal anchoring to the ground during their useful life and the eventual removal of the elements.

Once the elements are placed and combined in the final arrangement, drilling of the pavement can proceed with a 10 mm drill to a depth of 140 mm. Next, the modules are removed to insert the plugs into the holes; reposition the speed reducers in their correct final position and screw the screws into the plugs.

It is important that the position of the screw within the hole is perpendicular to the pavement, to ensure the correct distribution of stresses across the entire element. It is also necessary to use steel washers of the appropriate dimensions.

Important

The anchoring system described is the only one that meets our technical specifications and is approved by the Italian Ministry of Public Works.

3M does not assume responsibility for applications made using other mechanical devices or adhesive techniques.

The use of any type of adhesive instead of the expansion plug should be avoided, as it prevents rainwater flow beneath the speed reducer and its possible removal.

Special attention should be paid to pavements or different load types typically present on our streets; on very rigid surfaces (such as concrete, for example).

They are particularly recommended for urban areas, discouraging their installation on high-speed roads as well as on roads subjected to heavy vehicle flow.

No responsibility can be assumed in case of installations that do not comply with the conditions described here.

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