Square shaped grating in ductile iron EN-GJS-500-7 conforming to the norm UNI EN 1563:2012
It is realized from a single cast, it comes without gasket, its stability is guaranteed through a metal to metal coupling. The outside edge is realized in the shape of a channel in order to obtain a system of hydraulic closure if it comes filled up with sand, tar or other materials. Externally, the outside border is flanged to optimize its hold in the cement and the insertion of the anchoring bolts.
Square-shaped concave grating, with void parallel rectangular slots, designed for filling with materials suitable to the installation areas.
STANDARD EN 124 CLASSIFICATIONS AND PLACES OF EMPLOYMENT
Manhole covers, gullies and gratings can be distinguished into the following classes: A15, B125, C250, D400, E600 ed F900.
Group 3 (Class C250 minimum) For gullies installed in kerbside channels of the pavement which, extends to 0.5 m in the road and to 0.2 m top on the pavement, when measured from the edge.
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.