No more casting!
This new and lightweight KIO manhole cover made of KINEXT composite material with a nominal size of DN 1000 is available in class C250 and D400. The cover is locked and watertight.
In addition to DN 600 and DN 800/900, a light surface water-tight KIO manhole cover is now also available in DN 1000, which makes gas pressure springs or heavy lifting equipment superfluous.
You can find this article on page 40