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Inspection manhole cover in ductile iron EN-GJS-500-7 conforming to norm EN 1563:2018 with load bearing capacity over 125 kN (12.5 tons), conforming to the load class B125 as set out by norm EN 124:2015
FRAME
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.
COVER
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.
