Polyethylene grating GHK - QUEEN F900

high load capacityconstructionmanhole cover

Square or circular shaped grating in ductile iron EN-GJS-500-7 conforming to the norm EN 1563:2018, with load bearing capacity over 900 KN (90 tons) and 400 KN (40 t) , conforming to the load class F900 and D400 as set out by norm EN 124:2015 FRAME It is square or circular in shape with an internal circular net opening. It has a polyethylene gasket placed inside, in order to increase stability and eliminate any rocking or noise. The locking system is automatic, obtained through an elastic bar. The unlocking process can be performed with suitable tools from the construction site. The external edge is flanged to optimise its hold in the cementand the insertion of the anchoring bolts. GRATING It is circular in shape, it is hinged to the frame with top opening of 110°, 90° is the safety position (automatic locking) with the possibility of removing it without disassembling the hinge. It guarantees a high stability thanks to self-centering guides placed under the cover with double stops. The upper surface is designed to be non-skid