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Cast Iron and ductile iron Manhole Covers for underground networks chambres acces.
MCD has under designing and redesigning cast iron street covers (for drainage and sewerage) which may be usefull for any foundry manufacturers to cast them.
If you will manufacture a cover following our design and you will accept to send us the breaking test results and evaluation,
as well as a detailed photo of the broken piece (frame or lid) we'll send you in exchange another new design of a similar piece.
It is necessary to tell us before, because we have to verify the reserve of our new designs.
Example of ductile-cast-iron circular fitting two-piece (frame and lid) manhole cover.
Manhole covers designs refers to grey or ductile cast iron manhole covers
according to standard EN 124 and loading test meeting with D-400, E-600, F-900.
Suggested material use grey cast iron 300N/mm2 and ductile iron 450N/mm2-10%, 500N/mm2-7%.
You may already cast the manhole cover exposed below, as it is designed, following the terms of use.
The non-mentioned dimensions will be choosen due to manufacturer.
The thickness of reinfocing ribs or plate are in concordance with loading class and ductile iron grade
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