Inspection manhole cover in ductile iron EN-GJS-500-7 conforming to norm UNI EN 1563:2012
It is round-shaped, with an inside net opening. It has a continuous EPDM gasket as single ring (o-ring), to increase the stability and eliminate any rocking or noise. Furthermore, the hinge seating of the cover have been cast.
Outside, the external border is flanged to optimize its hold in the cement and the insertion of anchoring bolts.
It is round shaped and it is hinged on the frame with a maximum opening of 110°, at 90° it assumes a security position (automatic locking). It can be removed without hinges disassembly operation. The locking system through key is realized in stainless steel and it is maneuverable with a special key that increases the security and prevents the opening of manhole covers by not-authorized people. Moreover, the special key creates a comfortable handle for the opening and closure of the cover. The upper surface is designed to be non-skid to allow the complete flow
of water and avoid the creation of ice.
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 2 (Class B 125 minimum) footways, pedestrian areas or similar, car parks and drop off points, multi store car parks.
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.