Ductile iron inspection manhole cover CRF CLASS F900 series

squarerectangular

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), conforming to the load class F900 as set out by norm EN 124:2015 FRAME Made by casting, is composed of assembled elements with bolts.The modular structure of the frame allows the assembling of two or more pieces continuously, so that to obtain manhole covers of various lengths. The surfaces in contact with the cover are worked by machine, in order to have a perfect coupling and eliminate the gap between frame and cover. The height of 150 mm ensures stability in use, and the levelling screws ensure a correct installation. COVER Made by casting, it guarantees stability and absence of noise, due to the working by machine of all the contact surfaces; in addition, the interposition of a grease layer between frame and cover, together with the locking screws, create a watertight system. The surface of the cover is recessed, and presents a depth of the basin equal to 80 mm, so that it can easily be filled with concrete or other materials. The cover is provided with four slots for the insertion of suitable lifting keys. ACCESSORIES: Lifting Key 06 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.