Ductile iron manhole cover CHD MACHINED CLASS D400

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Inspection manhole cover in ductile iron EN-GJS-500-7 conforming to norm UNI EN 1563:2012 The contact surfaces of frame and cover are worked by machine and reclined, with a V-shape, so as to obtain a perfect watertight closing system, with no tolerance and impossibility of any rocking problem. FOR ALL ROADS WITH HEAVY AND FAST TRAFFIC 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 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.