Inspection Manhole Cover in ductile iron EN-GJS-500-7 conforming to the norm
EN 1563:2018, with load bearing capacity over 900 KN (90 tons) and 600 KN (60t),
conforming to the load class F900 and E600 as set out by norm EN 124:2015
FRAME
It is rectangular in shape, it is made in a single cast and it can be opened
through triangular covers, without seals. The stability is guaranteed by a
square edge metal to metal connection on three points. The outside border
is ribbed and slotted, in order to optimise its hold in the cement mortar
and facilitate the insertion of the anchoring bolts. Furthermore, the hinge
seating of the cover is obtained through casting process.
COVERS
It is triangular in shape, hinged to the frame, it presents gas pistons which
facilitate the handling operations by a single worker, reducing considerably
his effort; the maximum opening is 110°.
The locking mechanism is made in stainless steel, it can be handled with
a special shaped key, which increases safety and prevents the opening
of the manhole covers by non authorised personnel. Furthermore, the key
becomes a comfortable handle for opening and closing the cover. The
upper surface is designed to be non-skid to allow the complete flow of
water and avoid the creation of ice.
Lifting Key 06
Handle Key 05
Stainless steel
Gas spring
THE CHOICE OF THE APPROPRIATE LOAD CLASS FALLS UNDER THE RESPONSIBILITY OF THE DESIGNER / SITE MANAGER. IN CASE OF DOUBT (SUCH AS PARTICULARLY HEAVY TRAFFIC AND/OR HIGH LOADS), IT IS ADVISABLE TO CHOOSE THE CLASS ABOVE THE MINIMUM REQUIRED.