DROP-IN REPLACEMENT MANHOLE COVERS
Traditional cast iron manhole covers are being stolen, leaving the manhole open and dangerous.
With Vanstone's Drop-in Replacement Covers, you can now almost instantly
Drop in one of Vanstone's perfect-fit standard manhole covers for a quick, safe and strong solution
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Please see Standard Manhole Replacement Covers offered by Vanstone >>
[/col_inner] [/row_inner]Manhole covers were traditionally made of cast iron to standard sizes and load bearing strengths specified in SANS 588. Because of the high scrapmetal value of cast iron, the covers are being lifted, stolen and sold on a large scale. This leaves scores of open manholes that are unsafe and dangerous.
[row_inner] [col_inner span="4" span__sm="12"]The old cast iron frames were built in, and that makes it more difficult to remove. It has to be chopped out. The old frames are mostly left in place.
Closing up the open manhole presents a new challenge. Various solutions have been tried:
- Replacing a cover with another cast iron one is futile as it is soon stolen again.
- Mild steel replacement covers are also taken.
- Locks if fitted are easily broken.
- Most polymer and concrete covers have thick edges that protrude above the surface and generally does not fit the old frames.
- Make-shift replacements are unreliable and unable to withstand the loading as per the original SANS covers and are unsafe.
- Replacement with a new cover and frame is a major operation. It requires a skilled building team and it takes time to organise and do.
Vanstone developed reinforced concrete covers with special thin galvanized steel rims. These covers drop perfectly into the standard frames and usually require no further work. Some steel is visible but the covers are mainly concrete, heavy and not attractive to thieves.
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