Channel in polymer concrete supplied with protective frames and ductile iron grates locked with steel screws, conforming to norm UNI EN 1433 , and to the load class D400.
The inside surface is smooth without corners and with neutral PH, to facilitate the flowing of water and to avoid the growing of weeds. These channels are designed for vertical drainage through suitable drilling, and for horizontal drainage with a specific header, supplied with HDPE ending, of diam. 100 mm
STANDARD UNI EN 1433 CLASSIFICATIONS AND PLACES OF EMPLOYMENT
Manhole covers, gullies and gratings can be distinguished into the following classes: A15, B125, C250, D400, E600 ed F900.
Grup 4 (Class D 400 minimum): Road carriageways (including pedestrian streets), hard shoulders and parking areas for all types of road vehicles.
THE APPROPRIATE LOADING CLASS CHOICE IS UP TO THE WORKS DIRECTOR. IN CASE OK DOUBT (SUCH AS PARTICULARLY INTENSE TRAFFIC OR VERY HIGH LOADS AREA), IT WOULD BE APPROPRIATE TO CHOOSE A SUPERIOR LOADING CLASS.